For welding applications, the most meaningful relationship of depth of focus (depth of field) is the so-called 5% definition. 5% of depth of focus (L5,%) is defined as a range, within this range, changes in spot size does not exceed 5%. In other words, if the "in focus" spot was 0.1 mm, depth of focus, 5%, the spot size is not greater than 0.105 mm. L5, depends on the focused spot size (d), the output beam quality (BQexit) and laser wavelength (λ, lamp-pumped YAG 1064nm, diode-pumped disk lasers for 1030nm), the relationship between them can be expressed as. Some others ofgreen laser pointermight use the battery of the specific specification.
Therefore, the quality of any laser beam can be a direct reflection of the relevant parameters of its ability to focus, and spot size, focal length and depth of focus. Over the past few years, the field of CO2 laser welding parts unique concept has been development. Be possible to achieve this welding process (which is famous for remote welding) only increased power and good beam quality (such as Trumpf, TLF 6000 the HQ, 6 kW laser, nearly Gaussian distribution). Disc laser beam quality is very good, remote welding using YAG laser. The customer wants to usegreen laser pointerfor a long period.
Unlike the CO2 laser remote welding system that requires the use of the bucket frame structure with flight optical components to send the beam of YAG beam delivery capability remote welding using fiber optics, optically coupled to the scanning head mounted on a mechanical hands . There are many differences between the CO2 and YAG remote welding, these differences should be considered when assessing any remote welding system. They also provide clues for further research and analysis. The disk laser's excellent beam quality allows the beam passing through a smaller diameter fiber optic cable transmission, therefore, at a given focal length, can produce a smaller focused spot diameter (for fast processing of a higher power density). The barrier of green laser pointer is flexible.
Or, given the focused spot size, can produce greater processing depth of field (larger processing window, the more stable and further welding). Photonic crystal fiber laser. Abstract: The fiber laser is a laser field these years much the focus of attention, with many of the traditional optical fiber is difficult to achieve the advantages of photonic crystal fiber, high-power fiber laser with photonic crystal fiber as the gain medium has been widespread concern. In this paper the basic principles of fiber lasers, a brief introduction, and highlighted the double-clad photonic crystal fiber laser. Introduction fiber lasers and solid, gas lasers, fiber lasers have many unique advantages. The customer can charge two different kinds of batteries used by different kinds of green laser pointer with only one charger.
Such as beam quality, small size, light weight, maintenance-free, air cooling, easy to operate, low running cost, long-term use in industrial environment; and high precision machining, high speed, long life, energy saving, in particular, intelligent , automation, flexible. Therefore, it has been replaced in many areas of traditional YAG and CO2 lasers. However, traditional fiber lasers due to optical waveguide structure limits its small numerical aperture, low coupling efficiency, as well as the core area to maintain single-mode transmission in high-power operating conditions prone to nonlinear effects and thermo-optical and other issues, the output power is very restricted. The battery ofgreen laser pointercan be used to charge both 16340 battery and 18650 battery at the same time.
Friday, March 2, 2012
When the teacher performs the green laser pointercan be used
Stick back reflection pump may cause very high peak power. This peak power may destroy the internal optical components and fiber optic cables. Back-reflection amount of fiber length, fiber core diameter and a function of laser power (fiber the longer, the smaller the core, the higher the power, the greater the back reflection). , Small size, because YAG disc lasers, the lasing generated by the back-reflected energy can be ignored, so the fiber length is no longer limited by this phenomenon. Disk lasers (diode-pumped rod lasers as well) the last one of the advantages it is worth noting: the pumped disk of light from the diode laser. Normally, when the customer buy this kind ofgreen laser pointer, the manufacturer will ship the complete set of laser pointer for the handy and convenient use of the customer.
With light (such as arc lamp) pump laser compared, the advantage of particularly prominent. The difference between them is: diode lasers have a very narrow wavelength range (almost all the light energy of laser), while the light in the wavelength range is very wide, useless most of the laser, but produce no heat used. This is a laser disc electro-optical efficiency greater than 15% of the basic reasons, typical lamp-pumped lasers, electro-optical efficiency of only 3% to 4% (diode-pumped rod lasers electro-optical efficiency of about 10%). Beam quality advantages. Turning to the beam focusing capability and laser power density on the workpiece, the beam quality becomes very important. The brass material can makegreen laser pointerharder and more endurable.
However, the beam must be focused into the fiber, the beam quality is the most important factor in determining the fiber size of the transmission beam. Beam quality, sometimes also known as the beam parameter product BPP is the plot of the beam radius and beam divergence angle, mm - mrad expression. On the beam is focused into the fiber, the beam radius is the radius of a focused laser beam in the fiber at the entrance beam semi-divergence angle is equal to the half-width of the coupling beam. In order to produce a more stable laser device in the fiber at the entrance of the focused spot must be less than the fiber core diameter to be small enough to be plug and play replacement of fiber (to replace the fiber optic cable in the field, without any ability to adjust). The rubber finish can increase the friction between the hand of the customer and the body of green laser pointer.
Core diameter (φc) and the focused spot on the workpiece (d) the direct relationship, and also the power density, this relationship can be expressed as: where, f is the focal length of the focusing optical system, fc is the collimating optics The focal length of the system. Therefore, the smaller the core diameter, the smaller the diameter of the focused spot. However, the light is not enough to have the ability to focus into a small spot. Also consider the problem of power density. The power density (Pd) means: the unit focused spot size of laser power (P) (area = πd2 / 4). So, when the diode-pumped disk laser (Trumpf, Model HLD is 4002, the power up to 4 kW on the workpiece. The goggle ofgreen laser pointercan prevent the customer being hurt by the strong and powerful laser beam light of the laser pointer.
Diameter fiber is 200μm) with the lamp-pumped rod laser (Trumpf, the model of HL 4006, power up to 4 kW on the workpiece, the diameter of the fiber is 600μm) spot size and power density, the superiority of the beam quality, to be passed by the power density or the focal length be seen clearly. Higher power density can be used to generate high-speed, narrow weld, or by using a long focal length lens, resulting in a low-speed, wide weld. Compared to the benefits of using a long focal length lens with short focal length lens is: it makes the processing of optical components away from the welding fumes and spatter, but also created a much greater depth of focus (or larger processing window). Actually, this kind of multiple function charger of green laser pointer is very convenient for the customer.
With light (such as arc lamp) pump laser compared, the advantage of particularly prominent. The difference between them is: diode lasers have a very narrow wavelength range (almost all the light energy of laser), while the light in the wavelength range is very wide, useless most of the laser, but produce no heat used. This is a laser disc electro-optical efficiency greater than 15% of the basic reasons, typical lamp-pumped lasers, electro-optical efficiency of only 3% to 4% (diode-pumped rod lasers electro-optical efficiency of about 10%). Beam quality advantages. Turning to the beam focusing capability and laser power density on the workpiece, the beam quality becomes very important. The brass material can makegreen laser pointerharder and more endurable.
However, the beam must be focused into the fiber, the beam quality is the most important factor in determining the fiber size of the transmission beam. Beam quality, sometimes also known as the beam parameter product BPP is the plot of the beam radius and beam divergence angle, mm - mrad expression. On the beam is focused into the fiber, the beam radius is the radius of a focused laser beam in the fiber at the entrance beam semi-divergence angle is equal to the half-width of the coupling beam. In order to produce a more stable laser device in the fiber at the entrance of the focused spot must be less than the fiber core diameter to be small enough to be plug and play replacement of fiber (to replace the fiber optic cable in the field, without any ability to adjust). The rubber finish can increase the friction between the hand of the customer and the body of green laser pointer.
Core diameter (φc) and the focused spot on the workpiece (d) the direct relationship, and also the power density, this relationship can be expressed as: where, f is the focal length of the focusing optical system, fc is the collimating optics The focal length of the system. Therefore, the smaller the core diameter, the smaller the diameter of the focused spot. However, the light is not enough to have the ability to focus into a small spot. Also consider the problem of power density. The power density (Pd) means: the unit focused spot size of laser power (P) (area = πd2 / 4). So, when the diode-pumped disk laser (Trumpf, Model HLD is 4002, the power up to 4 kW on the workpiece. The goggle ofgreen laser pointercan prevent the customer being hurt by the strong and powerful laser beam light of the laser pointer.
Diameter fiber is 200μm) with the lamp-pumped rod laser (Trumpf, the model of HL 4006, power up to 4 kW on the workpiece, the diameter of the fiber is 600μm) spot size and power density, the superiority of the beam quality, to be passed by the power density or the focal length be seen clearly. Higher power density can be used to generate high-speed, narrow weld, or by using a long focal length lens, resulting in a low-speed, wide weld. Compared to the benefits of using a long focal length lens with short focal length lens is: it makes the processing of optical components away from the welding fumes and spatter, but also created a much greater depth of focus (or larger processing window). Actually, this kind of multiple function charger of green laser pointer is very convenient for the customer.
Thursday, March 1, 2012
The visible transmission is needed for the green laser pointer
As we all know, any kind of light emission is related to its state of motion of material particles within. When the particles (atoms, molecules or ions) in the low-energy level of absorption of external energy (light) of the appropriate frequency to be excited (stimulated absorption) transition to the corresponding energy level is always trying to transition to a lower level go, the excess energy released form of a photon. Without external photon effect alone released spontaneously (spontaneous emission), then release the light is the ordinary light (such as lights, neon signs, etc.), which is characterized by the size of the frequency of light, the direction and pace of very inconsistent. Therefore, when using green laser pointer , it can work normally.
But if it is under the direct role of foreign photon transition to low energy levels by the high energy level, the excess energy released form of a photon (stimulated emission), the photon is released outside the incident photon frequency, phase, direction of propagation exactly the same, which means that the external light has been strengthened, which we call optical amplification. Obviously, if adopted by the shock absorption, so that the number of particles in a high energy level more than at the low levels of (inversion), the magnification of this optical phenomenon is more obvious, then there is likely to form the laser. The laser is labeled the magic of light, because it is the ordinary light do not have any of the four features. The customer can use green laser pointer to realize the freedom of not being restricted by the computer.
Good direction - ordinary light source (sun, incandescent or fluorescent) light-emitting in all directions, the direction of the laser light can be limited to less than the solid angle of several milliradians, which makes the illumination in the irradiation direction to improve thousands of times. Laser collimation, orientation and distance measurement is to use a good direction this feature. - Laser brightness of the brightest light source, only the hydrogen bomb explosion instantly intense flash can be comparable to it. The brightness of the sunlight is about 103 W / (cm 2 steradian), a high-power laser output brightness of the sunlight of 7 to 14 orders of magnitude higher. Thus, even though the total energy of the laser is not necessarily great. The length of green laser pointer is not very long.
However, due to a high concentration of energy, it is easy to generate high pressure and tens of thousands of degrees Celsius in a tiny point or even millions of degrees Celsius. Laser drilling, cutting, welding and laser surgery is to use this feature. Monochromatic - the light is an electromagnetic wave. The color of light depends on its wavelength. Ordinary light source light emitted typically contain a variety of wavelengths, the mixing of the various colors of light. Sunlight contains red, Tang, yellow, green, green, blue, purple seven colors of visible light and infrared light, UV and visible light. The wavelength of a laser, only concentrated in a very narrow spectral band or frequency range. Such as helium-neon laser wavelength of 632.8 nm, the wavelength range of less than one ten thousandth of nano. The infrared light cannot penetrate the object so that the visible transmission is needed for this kind of green laser pointer.
Monochromaticity of the laser, for precision instruments to measure and motivate some chemical reactions and other scientific experiments provide a very favorable means. Good coherence - interference is a property of the wave phenomena. Laser-based, highly directional and monochromatic features, it is bound to the excellent coherence. This feature of laser holography to become a reality. - The so-called laser technology, is to explore these features to develop a variety of laser and explore the application of laser technology general benefit of mankind. Since 1960 the United States successfully developed the world's first ruby laser, China has also been successful domestic first ruby laser was developed in 1961. green laser pointer only has the single laser function.
But if it is under the direct role of foreign photon transition to low energy levels by the high energy level, the excess energy released form of a photon (stimulated emission), the photon is released outside the incident photon frequency, phase, direction of propagation exactly the same, which means that the external light has been strengthened, which we call optical amplification. Obviously, if adopted by the shock absorption, so that the number of particles in a high energy level more than at the low levels of (inversion), the magnification of this optical phenomenon is more obvious, then there is likely to form the laser. The laser is labeled the magic of light, because it is the ordinary light do not have any of the four features. The customer can use green laser pointer to realize the freedom of not being restricted by the computer.
Good direction - ordinary light source (sun, incandescent or fluorescent) light-emitting in all directions, the direction of the laser light can be limited to less than the solid angle of several milliradians, which makes the illumination in the irradiation direction to improve thousands of times. Laser collimation, orientation and distance measurement is to use a good direction this feature. - Laser brightness of the brightest light source, only the hydrogen bomb explosion instantly intense flash can be comparable to it. The brightness of the sunlight is about 103 W / (cm 2 steradian), a high-power laser output brightness of the sunlight of 7 to 14 orders of magnitude higher. Thus, even though the total energy of the laser is not necessarily great. The length of green laser pointer is not very long.
However, due to a high concentration of energy, it is easy to generate high pressure and tens of thousands of degrees Celsius in a tiny point or even millions of degrees Celsius. Laser drilling, cutting, welding and laser surgery is to use this feature. Monochromatic - the light is an electromagnetic wave. The color of light depends on its wavelength. Ordinary light source light emitted typically contain a variety of wavelengths, the mixing of the various colors of light. Sunlight contains red, Tang, yellow, green, green, blue, purple seven colors of visible light and infrared light, UV and visible light. The wavelength of a laser, only concentrated in a very narrow spectral band or frequency range. Such as helium-neon laser wavelength of 632.8 nm, the wavelength range of less than one ten thousandth of nano. The infrared light cannot penetrate the object so that the visible transmission is needed for this kind of green laser pointer.
Monochromaticity of the laser, for precision instruments to measure and motivate some chemical reactions and other scientific experiments provide a very favorable means. Good coherence - interference is a property of the wave phenomena. Laser-based, highly directional and monochromatic features, it is bound to the excellent coherence. This feature of laser holography to become a reality. - The so-called laser technology, is to explore these features to develop a variety of laser and explore the application of laser technology general benefit of mankind. Since 1960 the United States successfully developed the world's first ruby laser, China has also been successful domestic first ruby laser was developed in 1961. green laser pointer only has the single laser function.
The charger of green laser pointer
Such as acute patients, abnormal blood pressure, cardiovascular and cerebrovascular patients with acute onset of skin perceived barriers or skin abnormal, fever patients, pregnant women and children. The instructions should include precautions. Its contents should include at least the maintenance and maintenance (including daily maintenance and weekly maintenance). The instructions shall include the product Common Faults and exclusion method. The manual should include the interpretation of the content of graphics, symbols, abbreviations used on the labels, such as laser safety signs. GB 7247.1-2001, GB 9706.1-2007 instructions. The wireless presenter green laser pointer can totally free the user or customer from being restricted by the computer.
Registered unit principle. Registered unit in principle to the structure, performance and intended use as a divided basis. For example, the products are expected to use the same time, the type A for clinical in vitro exposure to alleviate the clinical symptoms of hyperlipidemia and hyperviscosity caused, Model B is used for analgesia should be divided into different registration unit. To determine the principles of the typical products in the same registration unit. Typical products of principle. Typical products should be the same registration unit can represent this unit of product safety and efficacy of products; should be considered the most complete, most complex, the most stringent performance requirements, the highest risk products. Because the charger ofgreen laser pointercan charge two different kinds of batteries.
The same or similar technical structure and performance indicators. Under normal circumstances, the more complex alternative to simple. Implementation of detection for the different parts for testing. Registered examiner should determine the product in accordance with GB7247.1 Class 3A laser products, the review should focus on review of the test report to determine the level of security, according to the standard. Product electrical safety performance and main technical performance indicators of whether the implementation of a mandatory national and industry standards to determine whether the applicable recommended standard. Performance indicators to determine whether it can meet the safety and efficacy of the product. The main risk of the product is already cited, product safety and risk control measures within a reasonable and acceptable level. The customer only needs to slightly press the button on green laser pointer.
The instructions must inform the user to use, contraindications, precautions and other information is complete. The intended use of the product is clear, whether the outcome of clinical trials. Class 3A semiconductor laser treatment. Product Registration Technical review of the guiding principles for the preparation of instructions. Guidelines for the general idea. The guiding principles used to guide and regulate the Class 3A semiconductor laser treatment the technical review of the registration application process, review the registration materials. The guiding principles designed to make the initial contact with the product registration review staff have a basic understanding of various aspects of the principle, structure, performance, intended use. After the receiver of green laser pointer is plugged into the flash disk port on the computer.
Technical review staff to grasp the basic scale review of the product registration technology to ensure that products are safe, and effective. Notification of registration approval issued to the "domestic first-class medical devices operating specifications (Trial)" and "the territory of Class II medical devices registration approval practices (Trial)" (State Food and Drug Administration armed [2005] No. 73). Other normative documents released by the State Food and Drug Administration. YY / T 0316-2008 "medical device risk management to medical devices". GB7247.1-2001 "Safety of laser products - Part 1: Equipment Classification, Requirements and User's Guide" and other product standards. It is the radio frequency technology of green laser pointer.
Registered unit principle. Registered unit in principle to the structure, performance and intended use as a divided basis. For example, the products are expected to use the same time, the type A for clinical in vitro exposure to alleviate the clinical symptoms of hyperlipidemia and hyperviscosity caused, Model B is used for analgesia should be divided into different registration unit. To determine the principles of the typical products in the same registration unit. Typical products of principle. Typical products should be the same registration unit can represent this unit of product safety and efficacy of products; should be considered the most complete, most complex, the most stringent performance requirements, the highest risk products. Because the charger ofgreen laser pointercan charge two different kinds of batteries.
The same or similar technical structure and performance indicators. Under normal circumstances, the more complex alternative to simple. Implementation of detection for the different parts for testing. Registered examiner should determine the product in accordance with GB7247.1 Class 3A laser products, the review should focus on review of the test report to determine the level of security, according to the standard. Product electrical safety performance and main technical performance indicators of whether the implementation of a mandatory national and industry standards to determine whether the applicable recommended standard. Performance indicators to determine whether it can meet the safety and efficacy of the product. The main risk of the product is already cited, product safety and risk control measures within a reasonable and acceptable level. The customer only needs to slightly press the button on green laser pointer.
The instructions must inform the user to use, contraindications, precautions and other information is complete. The intended use of the product is clear, whether the outcome of clinical trials. Class 3A semiconductor laser treatment. Product Registration Technical review of the guiding principles for the preparation of instructions. Guidelines for the general idea. The guiding principles used to guide and regulate the Class 3A semiconductor laser treatment the technical review of the registration application process, review the registration materials. The guiding principles designed to make the initial contact with the product registration review staff have a basic understanding of various aspects of the principle, structure, performance, intended use. After the receiver of green laser pointer is plugged into the flash disk port on the computer.
Technical review staff to grasp the basic scale review of the product registration technology to ensure that products are safe, and effective. Notification of registration approval issued to the "domestic first-class medical devices operating specifications (Trial)" and "the territory of Class II medical devices registration approval practices (Trial)" (State Food and Drug Administration armed [2005] No. 73). Other normative documents released by the State Food and Drug Administration. YY / T 0316-2008 "medical device risk management to medical devices". GB7247.1-2001 "Safety of laser products - Part 1: Equipment Classification, Requirements and User's Guide" and other product standards. It is the radio frequency technology of green laser pointer.
The charger of green laser pointer can save some money
Equipment for the safety evaluation index: finish, electrical and bio-safety performance, the equipment itself as well as supporting equipment operational performance, product structure and functional design to meet clinical needs, high temperature sterilization, repeated disinfection (sterilization) aspects of the product above performance is change. Results of clinical trials. Summary data of the test and control groups, respectively, and in accordance with the provisions of the program of statistical methods, and evaluation methods for statistical analysis (including analysis) between itself and the group given the analysis results. Necessary to provide test data statistical analysis. And at the same time no drive is needed to be installed for green laser pointer.
Analysis of the effect of clinical trials. The clinical investigator should be based on test results and the statistical results and analysis, statistical analysis of results make the interpretation of clinical significance. Conclusions of clinical trials. Clinical investigators should be based on the results of the clinical trial data, the effect analysis concluded. Clinical conclusions should be objective, scientific, fair and well documented in the test results. Indications, the scope of application, contraindications and precautions. Determine the appropriate indications, based on clinical trial results and conclusions of the scope of application. Contraindications and precautions to clinical investigators discovered or foreseeable problems in the test, and remind filers continuous improvement. Comparison of similar products. If similar products have been approved for marketing. The charger ofgreen laser pointercan save some money for the customer.
Required to submit clinical trial data for similar products in the clinical proof, compared to the description and comparison of similar products approved for marketing to prove. The clinical trial data including clinical literature or clinical trial reports. The clinical literature is above the provincial level core medical journals published products are expected to use the effect of academic literature, monographs, and literature review. Clinical trial reports of hospital signature, its contents should be able to verify the product's intended use, comply with the requirements of the Medical Device Clinical Trials Regulations. Comparison of similar products should include the products of the basic principles and structure of materials, the main technical performance indicators, the scope of application, contraindications psychosis in order to fully prove the declaration of the registered product and has approved the listing of products for similar products. So that green laser pointer will emit the green or red laser beam light.
Should provide a contrast to the similar product registration card and a copy of the registration form. Adverse events history of such products. Product specifications, labeling and packaging and labeling. Product brochures, labels and packaging and labeling of the preparation should be consistent with the medical device instructions, labels and packaging and labeling management approach, "GB18217-2000 laser safety signs," with GB9706.1-2007 Medical electrical equipment - Part 1: General safety requirements " and the GB of 7247.1-2001 Safety of laser products - Part 1: Equipment Classification, Requirements and User's Guide "and related standards. And the customer can have more time and chance to interact with their listener or audience if green laser pointer is used.
The contents of the specification: instructions should generally include the product name, specifications, the product works, key performance indicators, the scope of corporate name, the production of address, registered address, contact information and after-sales service, license number, registration No, the standard number. The manual should include product installation and usage instructions. Content should be easy to understand language concise, graphic symbol description is accurate and clear installation and use should be correct and feasible, comprehensive steps. The manual should include at least the following contraindications: patients with cancer, wearing a pacemaker patients, the sensitivity to light, bradycardia. Other caution disease should prompt the patient consult a doctor before use. When the teaching content, report, presentation or document needs to be noted or remarked, green laser pointer would be the best option.
Analysis of the effect of clinical trials. The clinical investigator should be based on test results and the statistical results and analysis, statistical analysis of results make the interpretation of clinical significance. Conclusions of clinical trials. Clinical investigators should be based on the results of the clinical trial data, the effect analysis concluded. Clinical conclusions should be objective, scientific, fair and well documented in the test results. Indications, the scope of application, contraindications and precautions. Determine the appropriate indications, based on clinical trial results and conclusions of the scope of application. Contraindications and precautions to clinical investigators discovered or foreseeable problems in the test, and remind filers continuous improvement. Comparison of similar products. If similar products have been approved for marketing. The charger ofgreen laser pointercan save some money for the customer.
Required to submit clinical trial data for similar products in the clinical proof, compared to the description and comparison of similar products approved for marketing to prove. The clinical trial data including clinical literature or clinical trial reports. The clinical literature is above the provincial level core medical journals published products are expected to use the effect of academic literature, monographs, and literature review. Clinical trial reports of hospital signature, its contents should be able to verify the product's intended use, comply with the requirements of the Medical Device Clinical Trials Regulations. Comparison of similar products should include the products of the basic principles and structure of materials, the main technical performance indicators, the scope of application, contraindications psychosis in order to fully prove the declaration of the registered product and has approved the listing of products for similar products. So that green laser pointer will emit the green or red laser beam light.
Should provide a contrast to the similar product registration card and a copy of the registration form. Adverse events history of such products. Product specifications, labeling and packaging and labeling. Product brochures, labels and packaging and labeling of the preparation should be consistent with the medical device instructions, labels and packaging and labeling management approach, "GB18217-2000 laser safety signs," with GB9706.1-2007 Medical electrical equipment - Part 1: General safety requirements " and the GB of 7247.1-2001 Safety of laser products - Part 1: Equipment Classification, Requirements and User's Guide "and related standards. And the customer can have more time and chance to interact with their listener or audience if green laser pointer is used.
The contents of the specification: instructions should generally include the product name, specifications, the product works, key performance indicators, the scope of corporate name, the production of address, registered address, contact information and after-sales service, license number, registration No, the standard number. The manual should include product installation and usage instructions. Content should be easy to understand language concise, graphic symbol description is accurate and clear installation and use should be correct and feasible, comprehensive steps. The manual should include at least the following contraindications: patients with cancer, wearing a pacemaker patients, the sensitivity to light, bradycardia. Other caution disease should prompt the patient consult a doctor before use. When the teaching content, report, presentation or document needs to be noted or remarked, green laser pointer would be the best option.
The customer uses green laser pointer in the inappropriate way
Do not directly observed within the beam, do not use the Class II laser direct exposure to the eyes of others, to avoid the observed Class II laser afar equipment. Typical applications such as classroom presentations, laser pointer, aiming devices and range finders. IIIA level for visible continuous laser output for the 1-5mW laser beam, the energy density of the beam should not exceed 25W/m-m is generally believed that the human eye is unsafe, exposed to this laser beam will the retina of the eye damage, and therefore can not be exposed to this laser beam or look directly at the laser beam. The customer will feel more comfortable when the customer looks at the green laser beam light of green laser pointer.
Avoid observation afar equipment IIIA laser, so that may increase the risk. A lot in common, such as laser pointer, laser scanner, a typical application of IIIA and Class II level. III B-class 5-500mW continuous wave laser, the export of visible laser light power is greater than 500mw, exposed to the will of the retina of the eye under the laser beam in this cause serious injury, and therefore can not be exposed to this laser beam look directly at the laser beam reflected light (including high-glossy), and pay particular attention to use. However, the minimum irradiation distance of 13cm, maximum exposure time of ten seconds the following for safety. Typical applications such as IIIB laser spectrometry and entertainment light shows. Of course, the green laser beam light ofgreen laser pointer has some shortcomings compared with other kinds of laser beam lights of the laser pointer.
ClassIV: laser is visible or not visible laser export optical power more than 500mw of laser or laser system, this laser beam and the reflected beam will cause serious damage to the eyes and skin, the use of such equipment must be strictly controlled . There is a risk of fire, diffuse reflection is dangerous. Typical applications such as surgery, research, cutting, welding, and micromachining processing. Online at the scene of the laser gas analyzer technology and product applications. Site online (in-situ) to measure the ingredients of industrial process gas is becoming increasingly important in the world's industrial areas. On line gas analysis measurements also complicated industrial processes and emissions of the most important one of the areas. The focusing ability of the green laser beam light of green laser pointeris as good as other kinds of laser beam lights.
Especially the need for measurement of low-level and high-precision gas analysis, gas analysis instrument manufacturers to adopt newer, more advanced technology. Meet this need is the main purpose of Norway Na Sike site of the development of laser gas analyzer online. Nasi Ke company can provide the product is superior to the scene of a series of laser gas analyzer based on a unique technology than the traditional gas analysis. The online site of the laser gas analyzer has pioneered the industrial process and exhaust gas measurements new areas. By advanced solid-state diode laser technology, optical solutions, spectroscopy and rugged industrial design, unique technology, the scene of the laser gas analyzer can work online in the case of cross-interference from other gases. The stability of the green laser beam light is lower than other kinds of laser beam lights emitted by green laser pointer.
The process pressure up to 5 bar, the temperature exceeds 1600 ° C. The site online of laser gas analyzer is the optical instruments, temperature stable, single-mode diode lasers emitting laser transmitter diameter direction relative to the receiver. Diode laser at room temperature near. Traditional online (on-line) analyzers, such as infrared (IR) line analysis instrument usually from other gases composition (including dust, moisture and background composition) cross-interference, this problem in the detection of low levels of becoming more and more serious. Control with traditional broadband spectral filter IR analyzer, the laser gas site online analyzer using a single-line spectroscopy in the near-infrared spectral range. The green laser bema light of green laser pointer is easier to be influenced by the ambient conditions.
Avoid observation afar equipment IIIA laser, so that may increase the risk. A lot in common, such as laser pointer, laser scanner, a typical application of IIIA and Class II level. III B-class 5-500mW continuous wave laser, the export of visible laser light power is greater than 500mw, exposed to the will of the retina of the eye under the laser beam in this cause serious injury, and therefore can not be exposed to this laser beam look directly at the laser beam reflected light (including high-glossy), and pay particular attention to use. However, the minimum irradiation distance of 13cm, maximum exposure time of ten seconds the following for safety. Typical applications such as IIIB laser spectrometry and entertainment light shows. Of course, the green laser beam light ofgreen laser pointer has some shortcomings compared with other kinds of laser beam lights of the laser pointer.
ClassIV: laser is visible or not visible laser export optical power more than 500mw of laser or laser system, this laser beam and the reflected beam will cause serious damage to the eyes and skin, the use of such equipment must be strictly controlled . There is a risk of fire, diffuse reflection is dangerous. Typical applications such as surgery, research, cutting, welding, and micromachining processing. Online at the scene of the laser gas analyzer technology and product applications. Site online (in-situ) to measure the ingredients of industrial process gas is becoming increasingly important in the world's industrial areas. On line gas analysis measurements also complicated industrial processes and emissions of the most important one of the areas. The focusing ability of the green laser beam light of green laser pointeris as good as other kinds of laser beam lights.
Especially the need for measurement of low-level and high-precision gas analysis, gas analysis instrument manufacturers to adopt newer, more advanced technology. Meet this need is the main purpose of Norway Na Sike site of the development of laser gas analyzer online. Nasi Ke company can provide the product is superior to the scene of a series of laser gas analyzer based on a unique technology than the traditional gas analysis. The online site of the laser gas analyzer has pioneered the industrial process and exhaust gas measurements new areas. By advanced solid-state diode laser technology, optical solutions, spectroscopy and rugged industrial design, unique technology, the scene of the laser gas analyzer can work online in the case of cross-interference from other gases. The stability of the green laser beam light is lower than other kinds of laser beam lights emitted by green laser pointer.
The process pressure up to 5 bar, the temperature exceeds 1600 ° C. The site online of laser gas analyzer is the optical instruments, temperature stable, single-mode diode lasers emitting laser transmitter diameter direction relative to the receiver. Diode laser at room temperature near. Traditional online (on-line) analyzers, such as infrared (IR) line analysis instrument usually from other gases composition (including dust, moisture and background composition) cross-interference, this problem in the detection of low levels of becoming more and more serious. Control with traditional broadband spectral filter IR analyzer, the laser gas site online analyzer using a single-line spectroscopy in the near-infrared spectral range. The green laser bema light of green laser pointer is easier to be influenced by the ambient conditions.
The best working temperature for thiskind of green laser pointeris
Therefore, the low divergence angle of the laser has a decisive advantage in the long-range destruction. In general, when the light-emitting area, the wavelength of the longer, the greater the divergence angle. Therefore, the red more than the infrared with long-range advantage. But there are differences due to different mechanism of generation of laser, so when the same power, they are difficult to achieve the same light-emitting area. For example, the 808 infrared light-emitting area than, 980 much larger, so in the same power, 808 of the divergence angle than 980 large. Focus limit: long-range corresponding to the close focus of destruction. The green laser beam light ofgreen laser pointeris much brighter than the blue laser beam light, red laser beam light, yellow laser beam light and purple laser beam light of the laser pointer.
Laser parallelism at the same time, different laser wavelengths have different focus limit, such as 10640 far-infrared laser focus limit of 532 green about 20 times, in other words, the same power per unit area on the 532 radiated power is 10 640 20 times, the gap is quite large. In general, the longer the wavelength of the laser focus limit will be greater. Thermal effects of destruction and penetrating: laser energy density. Therefore, penetrating the lower laser energy density will be able to have better performance. However, there is no absolute relationship between the laser wavelength and penetrating, is the wavelength of the visible range, such as air, the longer penetrate the stronger. Actually, in the market and practical use, the greengreen laser pointer is more popular than the blue laser pointer, red laser pointer, yellow laser pointer and purple laser pointer to some extent.
But the long-wave infrared stage, it has significant thermal effects, and its penetrating become weak. The glass is also true, CO2 laser engraving glass, 532 laser not. Therefore, this should first understand the characteristics of the target on the penetration of various wavelengths. Absorption: This is very important, very significant differences of the different colors of the objects on the absorptive capacity of the various wavelengths of laser. Absorb the worst of the same color, fairly and white; the most obvious anti-color absorption, and black considerable. For example, the green laser is very easy to point the red matches, while Green matches is more strenuous. Ionization: this part of the UV laser. UV laser with high single-photon energy, so it can target ionization. The green laser pointeris widely used in the daily use, especially the commonly seen locations without any specific requirements for the laser pointer.
For organic life, the ionization effects of UV laser destruction of protein and enzyme activity, which is the principle of the ultraviolet light disinfection. Then, the UV laser destruction of life forms is undoubtedly the strongest in the various wavelength. The sensitivity of human eye: the human eye is most sensitive to wavelengths of about 550nm yellow green light in the visible range, the closer the laser of the wavelength of mass destruction on the human eye is the stronger. The difference between class II laser pointer and class III laser. Low output (laser power is less than 0.4mW), regardless of the conditions under which the eyes and skin, will not exceed the MPE value will not exceed the MPE values, even through the optical system is focused. And at the same time, the green laser beam light of green laser pointer is relatively softer.
Can guarantee the safety of design, do not need special management. Typical applications such as laser pointer, CD player, CD-ROM devices, geological prospecting equipment and laboratory analysis instruments. Class Level II: low output visible laser (power 0.4mW-1mW), the closed eyes of the reaction time of 0.25 seconds, use this time to calculate the exposure amount can not exceed the MPE values. Usually 1mW laser under normal exposure to this laser beam does not cause permanent damage to the retina of the eye, but will lead to dizziness can not be thinking, with closed eyes to protect can not be completely safe. It means that the green laser beam light emitted by green laser pointeris not that dazzling.
Laser parallelism at the same time, different laser wavelengths have different focus limit, such as 10640 far-infrared laser focus limit of 532 green about 20 times, in other words, the same power per unit area on the 532 radiated power is 10 640 20 times, the gap is quite large. In general, the longer the wavelength of the laser focus limit will be greater. Thermal effects of destruction and penetrating: laser energy density. Therefore, penetrating the lower laser energy density will be able to have better performance. However, there is no absolute relationship between the laser wavelength and penetrating, is the wavelength of the visible range, such as air, the longer penetrate the stronger. Actually, in the market and practical use, the greengreen laser pointer is more popular than the blue laser pointer, red laser pointer, yellow laser pointer and purple laser pointer to some extent.
But the long-wave infrared stage, it has significant thermal effects, and its penetrating become weak. The glass is also true, CO2 laser engraving glass, 532 laser not. Therefore, this should first understand the characteristics of the target on the penetration of various wavelengths. Absorption: This is very important, very significant differences of the different colors of the objects on the absorptive capacity of the various wavelengths of laser. Absorb the worst of the same color, fairly and white; the most obvious anti-color absorption, and black considerable. For example, the green laser is very easy to point the red matches, while Green matches is more strenuous. Ionization: this part of the UV laser. UV laser with high single-photon energy, so it can target ionization. The green laser pointeris widely used in the daily use, especially the commonly seen locations without any specific requirements for the laser pointer.
For organic life, the ionization effects of UV laser destruction of protein and enzyme activity, which is the principle of the ultraviolet light disinfection. Then, the UV laser destruction of life forms is undoubtedly the strongest in the various wavelength. The sensitivity of human eye: the human eye is most sensitive to wavelengths of about 550nm yellow green light in the visible range, the closer the laser of the wavelength of mass destruction on the human eye is the stronger. The difference between class II laser pointer and class III laser. Low output (laser power is less than 0.4mW), regardless of the conditions under which the eyes and skin, will not exceed the MPE value will not exceed the MPE values, even through the optical system is focused. And at the same time, the green laser beam light of green laser pointer is relatively softer.
Can guarantee the safety of design, do not need special management. Typical applications such as laser pointer, CD player, CD-ROM devices, geological prospecting equipment and laboratory analysis instruments. Class Level II: low output visible laser (power 0.4mW-1mW), the closed eyes of the reaction time of 0.25 seconds, use this time to calculate the exposure amount can not exceed the MPE values. Usually 1mW laser under normal exposure to this laser beam does not cause permanent damage to the retina of the eye, but will lead to dizziness can not be thinking, with closed eyes to protect can not be completely safe. It means that the green laser beam light emitted by green laser pointeris not that dazzling.
The working temperature when using green laser pointer
Laser pointer with a range of laser pointer laser shot how far the range of the laser pointer refer to the laser range, mostly in the range of 200 meters above the laser pointer laser pointer power power the greater the range of the more far. Laser pointer remote control distance is the distance between the laser pointer transmitter and receiver general laser pointer remote control distance of 10 meters, 15 meters, 20 meters, with automatic frequency hopping technology, can effectively prevent other RF signal interference. Directional infrared technology, the transmitter must be at the receiver, and the middle is not there to block. Distance is generally not over seven meters, is immune to electromagnetic interference, the advantages of infrared products are low cost, cheap. It means that the customer can change the size of the single spot light of green laser pointer through adjusting the focus of the blue laser torch.
Using radio frequency technology products that use radio waves to transmit control signals, which is characterized by non-directional, and can not "face to face" control distance of up to tens of meters. Between the transmitter and receiver, as long as the metal can play a role in shielding obstacles, you can use normal. RF technology, product costs are usually higher, but its non-directional, easier to use, so more welcomed by users. Promise for wireless presenter series, most are used in radio frequency technology. Control technology using radio frequency rather than infrared control technology, a 360-degree freedom control, no directional restrictions. Do not need to use the transmitter to point to the receiver. green laser pointer also has some specific requirements for the using and working requirements.
The difference between integrated Micro SD card with integrated u disk. Integrated Micro SD card reader receiver, internal USB HUB chip, a card reader control chip, a large divergence than conventional receiver. The integrated U disk receiver heat. And ordinary receiver, the receiver of the integrated U disk at once more than three chips: USB HUB chip, USB master chip and Flash chip. The heat of the three chips was relatively large, three chips together is hot. Frequently read U disk, this phenomenon is more evident, its maximum internal temperature can reach 60 degrees. But it is still within the scope of design, does not affect the use of the product. green laser pointer should be operated under the working condition which is 0-35 Celsius degree.
Promise for integrated wireless presenter products are the industry's leading chip brands, in the heat control has been leading the The difference between green and red laser. The red laser module technology is relatively mature, and also a lot of manufacturers who wish to, the price is relatively cheap. The green laser module technology, the material has a high demand, the price is more expensive materials, manufacturers of production is relatively small, so the cost is relatively high. Green flip the pen is more expensive than the red flip T, mainly because the green laser module green flip pen with red laser module to be much more expensive than the red flip the pen. It is the characteristics of green laser beam light of green laser pointer.
Receiver with u disk, without the difference of u disk. Receiver with U disk: both the receiver when the use of U disk, can also be used when receiver. Receiver without the U-disk: use the receiver only when the receiver. The receiver itself is not a U disk. With U disk receiver is built on the basis of the receiver memory chips, realize U disc function. Introduction to the relationship between laser power and color. More laser power, the need to establish on the basis of them the same output power. Determine the laser power in the following aspects: the divergence angle: the better to understand, the greater the divergence angle, the range of the more nearly. Compared with other kinds of laser beam lights, the green laser beam light of green laser pointer has its special characteristics including shortcomings and strong points.
Using radio frequency technology products that use radio waves to transmit control signals, which is characterized by non-directional, and can not "face to face" control distance of up to tens of meters. Between the transmitter and receiver, as long as the metal can play a role in shielding obstacles, you can use normal. RF technology, product costs are usually higher, but its non-directional, easier to use, so more welcomed by users. Promise for wireless presenter series, most are used in radio frequency technology. Control technology using radio frequency rather than infrared control technology, a 360-degree freedom control, no directional restrictions. Do not need to use the transmitter to point to the receiver. green laser pointer also has some specific requirements for the using and working requirements.
The difference between integrated Micro SD card with integrated u disk. Integrated Micro SD card reader receiver, internal USB HUB chip, a card reader control chip, a large divergence than conventional receiver. The integrated U disk receiver heat. And ordinary receiver, the receiver of the integrated U disk at once more than three chips: USB HUB chip, USB master chip and Flash chip. The heat of the three chips was relatively large, three chips together is hot. Frequently read U disk, this phenomenon is more evident, its maximum internal temperature can reach 60 degrees. But it is still within the scope of design, does not affect the use of the product. green laser pointer should be operated under the working condition which is 0-35 Celsius degree.
Promise for integrated wireless presenter products are the industry's leading chip brands, in the heat control has been leading the The difference between green and red laser. The red laser module technology is relatively mature, and also a lot of manufacturers who wish to, the price is relatively cheap. The green laser module technology, the material has a high demand, the price is more expensive materials, manufacturers of production is relatively small, so the cost is relatively high. Green flip the pen is more expensive than the red flip T, mainly because the green laser module green flip pen with red laser module to be much more expensive than the red flip the pen. It is the characteristics of green laser beam light of green laser pointer.
Receiver with u disk, without the difference of u disk. Receiver with U disk: both the receiver when the use of U disk, can also be used when receiver. Receiver without the U-disk: use the receiver only when the receiver. The receiver itself is not a U disk. With U disk receiver is built on the basis of the receiver memory chips, realize U disc function. Introduction to the relationship between laser power and color. More laser power, the need to establish on the basis of them the same output power. Determine the laser power in the following aspects: the divergence angle: the better to understand, the greater the divergence angle, the range of the more nearly. Compared with other kinds of laser beam lights, the green laser beam light of green laser pointer has its special characteristics including shortcomings and strong points.
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