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Even at very low power, the green laser pointer and the green laser are more visible than the red high powered laser. This is because an ordinary green laser pointer emits a monochromatic 532 nanometer beam very close to 550 nanometers, which is the most sensitive wavelength of the human eye. In short, green light is easier to see than red light. But is the green laser pointer dangerous? Are they more dangerous than blue laser pointers? This is a good question to ensure the safety of students and understand some scientific aspects of laser pointer safety. The laser pointer seems to be a convenient way to keep your dog or cat active and entertaining, but are the opportunities for compulsive behavior, aggression, and self-harm really worth the risk? Let your pet participate in exciting games and reward him for his hard work through tangible "captures". Teach your dog to play hide-and-seek at home using favorite toys and snacks. Many dogs also like to play games, pull toys and play Frisbee.

You only need to tighten the end caps of the production line. It is made of durable acrylic cylindrical lens that produces green, highly visible lines for teaching lights, Rechargeable Laser Pointer and optics. Carry out research on optical experiment science and optical demonstration science. This is a standard green laser pointer that creates dots or lines to easily view the beam as it passes from one medium to another (refraction) or from a mirror (reflection). Reduce frustration and ensure that the beam is free of fog, fog, or chalk dust. No confusion, no fuss, just a visible beam.

The rapid, sporadic movement of the Burning Laser Pointers stimulates the hunting instincts of most dogs and cats, leading to a lively chase game that usually lasts a few minutes. The amount of movement of the animal chasing the laser pointer is amazing. This is especially beneficial for indoor pets, especially those who do not have enough outdoor space or live in cold climates. The problem with the light-following game is that it never ends. No matter how hard this animal works, he will never, never catch the light. This lack of isolation, satisfaction, and victory makes some dogs and cats extremely frustrated, which can lead to a series of behavioral problems and mental distress.

To help manufacturers support and confirm their CDRH self-certification for 3w laser pointer, UL has full-service laser testing laboratories in the United States, Japan and South Korea. All types of laser products have been tested for CDRH and IEC laser safety requirements . UL can provide services ranging from laser pointer safety testing to complete laser testing services. These services can generate complete CDRH reports that can be submitted to the FDA or IEC 60825-1 CB test reports with CB certificates.

The 20mw laser pointer provides a powerful Rechargeable Laser Pointer beam with an unusual star pattern. The design of the body is easy to carry, but the head of the device is reduced in many practical applications. In some cases, this laser pointer can provide entertainment. The laser pointer uses the laser as an educational tool. Since the length is determined by the length, you can also use PPT slides. For example, you can replace the pointer tool with such a direction, and you can specify the distance. Today, most red laser pointers, green and blue, are relatively cheap and expensive. However, it is still an indispensable laser in various situations in the scientific field. Recently, the mass production effect due to the activity of blue light, etc. seems to become cheaper, but the blue laser diode is still "the current situation is very expensive. .Just enjoy the light is one of the most fascinating lasers. You can’t see blue light like that.

The laser marking process is extremely flexible. You can use computer software to customize controls, patterns, text, etc. In addition, high powered laser marking provides offline (or independent) integration into the assembly line and works in conjunction with subsequent processes to reduce costs and improve quality, making it more convenient and effective. Coupled with the benefits of laser marking, more and more manufacturers use plastic laser marking machines for plastic marking processing.　The laser rangefinder illuminates the target with a laser beam and measures the distance from the time it reflects back to the target. At that time, in order to improve the measurement accuracy, hundreds of irradiations were performed in a short time of about 0.5 seconds. This also has the meaning of increasing the measurement certainty by increasing the number of shots, even when the laser beam is only irradiated once without hitting, for example when the target is small.

The light of the blue laser is very beautiful, but different from the green laser, even if the output is the same, it looks very dark, so if you want to enjoy a clear green light laser pointer, you should still buy a high-output blue laser... ... I hope it becomes more affordable sooner. There are laser pointers on the market now, but do you know what diameter you will irradiate when you irradiate, for example, 2 kilometers or 5 kilometers away? For commercial use, we may use something about 100mW, but we need to adjust the focus of the laser beam to use it.

I made a red laser pointer. But it was sudden. This is the finished product. I used to scrape and drill holes with brass on a school lathe. Once the intensity of the light pulse was increased, the scientists took a step forward, regardless of the undesirable effects that this usually causes. In addition to children, because the crew increased the power, they also reduced the reflectivity of the mirrors used in the equipment. It is divided into two because it allows you to adjust the focus. Researchers believe that the technology they discovered can better detect toxins or diseases.

The researchers solved this dilemma by using the so-called optical parametric oscillator, which can convert ordinary laser light into light of different wavelengths, which may be helpful in some research fields. An example is learning how molecules behave. Everyone wants to provide a unique reward for the most important person in their life. All of us want to discover something that expresses their taste and pastime, while presenting our own gifts.Green lasers are very popular these days, especially by astronomers and astronomers. As you may know, green lasers are generally classified as Class 3a lasers in the United States because they are much more powerful and have a measured value of less than 5 milliwatts. However, please pay attention to label permissions. The green laser 20000mw emits a light beam with a wavelength of 532 nanometers, and the red laser emits a light beam with a wavelength of 630 nanometers.

If you are the owner of a dog or cat, you will know how they are fascinated by the moving light spots emitted by laser pointers (especially cats). They see light spots as small and harmless things, but the birds react differently; they see the approaching spot as a threat, which triggers their escape reflex and causes them to fly away from the fields and roofs. The laser pointer 5000mw engraving machine I8 can engrave your own handwriting! In just a few simple steps, we can customize a personalized key chain for you! To use your own handwriting, just take a photo of your handwriting and send it. The laser protective glasses market is used in many industries, similar to manufacturing, national defense, telecommunications and clinical, and has a considerable number of functions, among which a laser beam is known to perform a considerable number of functions.

Due to the limitations of the existing technology of laser diodes, even in today's world, high-power Rechargeable Laser Pointer equipment is absolutely necessary, and it is a strict requirement of existing military, medical research and laboratory experiments. In addition, even when relaxing with balloons, plastic or rubber, cutting electrical tape, and lighting a cigarette, this wonderful gadget is famous. People can often use this mental power to pursue gadgets such as explosions, diving, and temporary lighting.

Among all available laser colors, green is the most sensitive and brightest color. The 532nm green Burning Laser Pointers beam has an ultra-long laser range of 1km to 10km, and the beam is visible day and night. Therefore, this pen-type green laser pointer low-consumption series is mainly used for business meetings, conferences, lectures, laboratory experiments, museums, galleries, exhibitions, etc. In addition, it is also the most important and common astrology application. Observe with a telescope.

At night, astrology is one of my favorite pastimes. High-power laser pointers are usually suitable for astronomical issues such as star sky observation. In the direction of the long-distance 3w laser pointer beam, you can clearly see the stars and other celestial bodies in the night sky. The powerful visible laser beam is suitable for all kinds of severe weather conditions, including heavy fog, heavy rain and highly polluted air. When this happens, the bat will exhaust its stored fat, and even if it rolls back and returns to the inverted position on the cave ceiling, it will not survive the hibernation season. Since bats are one of the main natural mechanisms of insect control, it is very important to protect and harm bat populations. Without them, you would have to use a lot of toxic pesticides.

Laser Weapon is a kind of directional energy Weapon which attacks the target by using the Laser beam fired along a certain direction. It has the excellent performance of fast, flexible, accurate and anti-electromagnetic interference, and can play a unique role in photoelectric countermeasures, air defense and strategic defense. Unlike a scene in a science fiction movie, it produces a red laser pointer beam that the naked eye can only see the damage to the target after it is hit, but not the actual beam. Laser weapons from the advent has never stopped the pace of development. The United States has been taking the lead in the field of laser weapons, and some laser weapon systems have begun to be put into practical use.

Problems with laser weapons

Laser weapon is a new concept weapon, it relies on the output of high energy laser beam to attack the target, directly kill and destroy the target or make it lose combat effectiveness. Its principle is the use of laser high brightness and other characteristics, there are three main characteristics. The first is ablation. When the intense laser 20000mw beam irradiates on the target, part of the energy is absorbed by the target and converted into heat energy, so that the surface material is heated, softened, melted, vaporized and ionized, and pits and even holes are formed on the surface of the target. This ablative action is the basic damage form of laser to target. 532nm wavelength technically requires more than 500mW, please choose carefully. In order to ensure the authenticity of the power supply, the same production will be two to five times the price difference. Why is that? The main reason is the diode material, brand and output stability. For 1W-1.6W green laser Pointers, we always use the best materials, Riya diode, efficient cooling system and circuit.

Secondly, it is necessary to compare wattage, divergence Angle, battery life, wavelength, spot type and other major technical parameters. Different applications have different parameter requirements. If you have any questions, please contact us by email or phone. laser pointer 5000mw, an acronym for the amplification of light by stimulated radiation, is an extremely bright source of light. A 1mW visible laser is about a million times brighter than a 100w light bulb, and the light can cause eye damage under some conditions. The lasers are divided into four main categories to identify the risks associated with them. Level 1 represents the least dangerous situation, where exposure to direct or reflected light does not cause any damage to the eye. Class 2 lasers have an output power of up to 1mW and do not harm the eye when exposed for up to 250ms. This is usually when it needs to react to a bright light source and close its eyes (blink reflex). Class 3 lasers are classified into class 3A (output <5 mW) and class 3B (output > 5 mW). Level 3 and 4 lasers can cause eye damage in less time than blink reflection. As a result, class 3B and Class 4 lasers are strictly controlled as part of the University's laser safety program.

Triangular pyramid red laser pointer, including laser pointer body, built-in circuit, laser pointer body is equipped with laser, wireless charging coil, light sensor, PPT display, shell, pen head retractable button, touch screen contact, pen head, touch screen contact cover, Laser pointer handheld terminal, the built-in circuit is equipped with electric and magnetic conversion modules, wireless charging modules, batteries, main control circuits, wireless network modules, storage modules, single-chip microcomputers, power prompt modules, laser generation modules, touch feedback modules, and drive modules , Light sensor module, display module, the utility model has simple structure, convenient use, diversified functions, high user experience, small volume, convenient for users to put in their pockets and carry them, and the triangular pyramid shape is beneficial to prevent the laser pointer from slipping and losing , To avoid unnecessary embarrassment caused by the pen slipping on important occasions.

With the continuous advancement of science and technology, laser 20000mw are widely used in education and business presentations. However, because traditional laser pointers mostly use batteries as energy sources, it is not conducive to energy saving and environmental protection. In addition, in ordinary teaching mode, teachers will also Using traditional teaching rods to guide students to analyze and teach key issues, it is necessary to frequently change the teaching aids in their hands, which brings a lot of inconvenience to teachers. In actual teaching practice, the teaching rod can clearly indicate the position of the blackboard, especially the blackboard indicating high places. When applicants go to school, teachers often use single-function tools such as books and sticks, but such tools are due to their own attributes. , Is often not available for all teachers. With the advancement of teaching reforms and the introduction of multimedia technology, some new teaching rods, such as the use of laser pointers, greatly facilitate teaching.

At present, the laser pointer 5000mw is a very important part of the teaching process for teachers. Teachers can use the laser pointer to indicate the location of the content they are telling. Modern teaching often uses PPT. Teachers will prepare the PPT in advance and then In the demonstration in the classroom, because there are often more points on a page of PPT, in order to facilitate the teacher to tell the students the location of the points when demonstrating the PPT, the teacher will use the laser pointer during the lecture. The laser pointer is generally powered by a battery. It can emit a laser beam when the switch is turned on. After a long time of use, the battery in the laser pointer will be insufficient. It is difficult for people to determine in advance whether the battery in the laser pointer is sufficient. If the laser is in the lecture Insufficient battery in the pen will cause some inconvenience to the lecture.

However,3w laser pointer are almost useless in the broad entertainment industry except for real pointers, and in many places, access to people who have pointers is prohibited as a potential hazard. In rare cases, laser gloves worn by professional dancers in stage performances can be seen, sometimes used as pointers. Unlike pointers, they usually produce low-power, highly divergent beams to ensure eye safety. Once or twice, these clues were used by magicians as props for magic performances. Green light is smaller than red light because green light is easier to see than green laser light suitable for astronomy. Green lasers also have the advantage of the wavelength that is most sensitive to our eyes.

High-power handheld Burning Laser Pointers can also be connected to the telescope as a visual indication of the telescope's facing position. The handheld laser is very suitable to be installed on the GOTO mount/binoculars, and use the telescope or binoculars to guide others to the object. With no duty cycle, no switches, and a very durable structure, the handheld laser can be easily connected to almost any brand of telescope and operated manually.

This pointer laser uses the highest quality green Laser Pointer manufacturing technology. It is different from commonly used laser diode products, but it allows you to carry out the most accurate experiments. According to the user's actual application and use requirements, the green laser pointer can have various lengths, and the output range of the laser pointer is 3000mW to 10000mW laser. Any operation will accurately project an accurate green light. The high-power laser pointer Raven, the portable laser is the ideal choice for engineers and site managers to emphasize details and functions. The laser beam spot is displayed under all conditions, which can quickly and effectively identify the function of the station. Effectively save money by reducing wasted time and minimizing errors.

In general, the output of laser pointer 5000mw pointer should be designed with a 0.5mm fine line and a working distance of 0.5m. To ensure the red line is super sharp, the green laser pointer is always equipped with optical glass lenses. This certified 2000mW high powered laser pointer consistently performs best on clear and accurate target surfaces. This energy transfer requires only a fraction of the colors of the solar rods (red and blue). However, the scientists found that red and blue lasers worked better. Our laser designators are more efficient at providing the exact types of plants that need light. After all, as an alternative to the sun, lasers use very little energy and are environmentally friendly.

Laser and photography is not limited to hobbyists and laser Pointers are recommended. Buy a professional green laser pointer with a powerful short pulse for high-speed shots with an exposure time of a billionth of a second. Use for equipment: As an athlete or battlefield soldier from certain target practice, the high power Rechargeable Laser Pointer can help improve your target and accuracy. With a laser designator with a range of more than 10 miles at night, you can aim your field of vision. The green laser dots become visible even in sunlight, which can greatly improve accuracy.

What is the decision to get the best presentation over long working distances? Now, remembering simple etiquette is enough to achieve the desired long-distance results. However, when you start selecting the green laser pointer, only the most obvious and clearly visible green laser beam is emitted by the human eye. Although based on the most advanced green laser technology, the bright laser remains visible and bright for miles, even when the results of a high-emission green laser beam are required.

For now, people are not limited to using low-power Laser Pointer to find and appreciate enthusiasts. However, some laser enthusiasts are already paying attention to recommendations for more powerful green laser Pointers. The green laser designator sits almost in front of high-performance gadget lasers ranging from 200mW to 10,000mW.

FIELD OF THE INVENTION The present invention relates to the technical field of wireless control laser pointer and multi-user spot recognition technology for projectors, and in particular to a wireless control laser 20000mw that can identify users and can be used in combination with multiple users Technical field of pen and recognition system. Projectors and computers have been widely used in multi-person meetings, business presentations, multimedia interactive teaching, military decision-making and other occasions. In these applications, the traditional computer control equipment keyboard and mouse cannot well meet the needs of human-computer interaction. Because they are designed for personal computer use, users need to operate in front of the computer when using these two devices.

At the same time, the laser pointer 5000mw in the prior art uses a hard switch to control the turning on of the laser pointer, that is, when the button on the laser pointer is pressed, the laser pointer turns on. Although this working mode is simple and convenient, for some unavoidable misoperations (such as accidentally touching the switch), it may cause the laser to directly hit human eyes and other parts, which is more dangerous. Moreover, more importantly, if the working voltage of the laser light emitting device in the laser pointer is unstable, it makes the use of the laser pointer not safe and reliable enough, and makes the laser light emitting device extremely easy to be damaged, thereby reducing the life of the laser pointer.

A new demand is expanding: in the environment of multi-person meetings, business presentations, multimedia interactive teaching, military decision-making, etc., multiple wireless control devices cooperate to operate computers. Multi-wireless control equipment to operate a computer in cooperation means that in the same space, multiple users can use their respective wireless control equipment to control the computer at the same time without conflicting each other. For example, in a multi-person meeting, many participants often want to participate in the discussion. They hope to use the laser pointer to emit lasers at the same time to operate on the large projection screen. At this time, the laser emitted by each 3w laser pointer should be distinguished, and each The user's operation will not interfere with another user's operation.

Laser pointer, also known as Laser Pointer, pointing star, etc. Because of its good coherence, the light spot is concentrated at one point, and it can easily indicate objects. It is well applied to the process of multimedia teaching and demonstration, and gradually replaces traditional teaching. In addition, it also has a page turning function, so that teachers or lecturers do not need to sit in front of the computer to turn pages, and can better interact and communicate with students, so that students can better accept new knowledge. Not only in the field of teaching lectures and training, but also in the field of astronomical observation and outdoor tour guides, laser pointer instructions have also been well applied.

The structure of the red laser pointer is the simplest. The reason why it is simple is that the red laser pointer is basically just a diode with battery as the energy source. And there are laser diodes that generate this wavelength. The red laser pointer first appeared in the 1980s. It is a large and heavy device worth hundreds of dollars; it is very small and very cheap. The word laser should be familiar to you.

Laser production

We often encounter lasers in our daily lives, such as laser 20000mw pointers used in classrooms, and CD-ROMs used to read CD data. In industry, lasers are often used for cutting and micromachining, displacement measurement, etc. In the military, lasers are also used to intercept missiles. Scientists also used lasers to accurately measure the distance between the earth and the moon, and the error involved was only a few centimeters. These are some of the broad applications of lasers. In fact, it took a long time to develop a laser. The famous physicist Einstein discovered its principle as early as 1917, but it was not until 1958 that the laser was successfully manufactured.

The emergence of laser cutting technology

Laser pointer 5000mw cutting processing is to use high-energy laser beam to irradiate the surface of the workpiece to partially melt and vaporize the irradiated area, so as to achieve the purpose of processing. Because the laser is called a very small spot after being focused by a special optical system, the energy density is high, because its processing is non-contact, there is no mechanical punching force on the workpiece itself, and the workpiece is easily deformed. It has very little thermal influence and high precision, and is widely used for cutting and dicing solar panels and thin metal sheets. Laser is the abbreviation for Light Amplification by Stimulated Emission of Radiation. The full name itself shows the main processes involved in laser production. Before studying these processes, we must first understand the structure of matter and the principles of light emission and absorption.