Yearly Archives: 2025

모모1 IntroductionFor the immediate pressure, high powered laser pointer With its own coping style, it can break the predicament and usher in a new life through the quality of the product itself. https://highpowerlaser.shop/collections/burning-laser

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모모Laser diode pumping solid-state lasers (DPLs) have attracted great interest due to their high efficiency, high beam quality, compact structure and long life. In recent years, with the successful development of high-power diode lasers, the development of DPL and its application in military, industrial, medical, scientific research and other fields have been promoted.

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모모The heat loss of the laser diode (LD) accounts for more than 50% of the total power consumption during normal operation, and the instability of the working temperature of the laser diode caused by the heat loss will change its output wavelength, which will affect the efficient and stable output of the DPL. In addition, heat is generated during the light pumping of the laser crystal of a solid-state laser, which also needs to be cooled. With the increase of the power of the solid-state laser pumped by the laser diode, the heat load generated by the device is increasing, and the heat dissipation density is getting higher and higher, and the DPL cooling problem has become a technical difficulty in the current DPL research.

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모모In order to solve the problem of high-power DPL heat dissipation, many scholars at home and abroad have carried out a lot of research work in recent years, and proposed a variety of cooling methods such as microchannel liquid convection heat exchange, solid cooling, spray cooling and micro heat pipe cooling. In this paper, the research status of these technologies is reviewed and analyzed, and on this basis, microchannel boiling heat exchange cooling and liquid nitrogen cooling technologies are proposed.

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모모2 Technical Principles

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모모There are different types of high-power solid-state lasers, such as solid-state heat-capacitance lasers, new thin-slice lasers, fiber lasers, end-face pumping lasers, etc., although the shape and heat dissipation of each laser heat dissipation device are different, but its main heat dissipation devices are the pumping source and gain medium. The cooling principle of the pumping source and gain medium can be illustrated in Figure 1. According to the theory of heat transfer, laser cooling can be expressed as follows:

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모모In the formula, the heat dissipation is the heat dissipation capacity of the heat dissipation device, the 붸 is the convective heat transfer coefficient of the cooling working fluid in the heat sink channel, the heat exchange area of the heat sink channel, the wf is the temperature of the inner wall of the heat sink channel, and the f is the temperature of the cooling working fluid. 멊h is scattered

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모모Thermal device temperature. The purpose of laser cooling is to take away the heat dissipation of the heat dissipation device and ensure a certain temperature of the heat dissipation device.

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모모It can be seen from equation (1) that in order to improve the heat dissipation, the convective heat transfer coefficient of the cooling working fluid in the heat sink channel should be increased as much as possible, the heat exchange area of the heat sink channel should be increased, and the temperature of the cooling working fluid should be reduced. At the same time, the thermal conductivity of the heat sink is reduced, so that the temperature of the inner wall of the heat sink channel is uniform and as close to the temperature of the heat sink device as possible.

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모모3 Research status

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모모The research status of four cooling technologies, namely microchannel liquid convection heat transfer, solid cooling, spray cooling and micro heat pipe cooling, is reviewed and analyzed.

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　　Laser pointers have become an increasingly popular tool in a variety of applications, such as presentations, stargazing, and even entertainment. The 301 500MW green high-power laser pointer is a powerful option that stands out. With its superior features and versatility, this laser pointer offers a superior user experience.With the expanding influence of the industry, high power laser Our business is also constantly spreading, and the development of the market is also gradually advancing. https://highpowerlaser.shop/collections

　　The 301 500mw green light high power laser pointer is known for its green laser beam, which provides superior visibility compared to other colors. It operates at 500 milliwatts (MW) or 0.5 watts, making it more effective than a standard laser pointer. This power allows it to project bright and focused beams of light over long distances of up to several kilometers.

　　Experts are full of praise for the performance of the 301 500MW green light high power laser pointer. Dr. Samantha Thompson, an expert in laser technology, confirms: “The 301 500mw green high-power laser pointer offers significant advantages in terms of visibility and range. Its powerful beam makes it ideal for outdoor activities such as astronomy and even emergency signals. ￣

　　In addition to its powerful features, this laser pointer has a durable and compact design, ensuring easy portability. Its body is made of high-quality materials that can withstand daily use. The compact size makes it easy for users to slip it into their pocket or bag for easy access when they need it.

　　An important aspect to be aware of when using the 301 500mw green light high power laser pointer is safety. Due to its high power, it must be handled responsibly and with care. Direct exposure to light beams can be harmful to the eyes and skin, so proper precautions such as wearing protective eyewear should always be taken.

　　In order to further enhance the user experience, the 301 500MW green light high power laser pointer provides a variety of working modes. It can emit continuous beams of light or can be adjusted to produce different patterns, such as dots or stars. This versatility makes it suitable for a wide range of applications, including professional presentations or creating captivating visuals.

　　In addition, the 301 500MW green light high power laser pointer comes with a rechargeable battery that does not need to be replaced frequently. Not only does this save money in the long run, but it also reduces environmental waste. The battery life is impressive, providing longer use time before it needs to be recharged.

　　The benefits of a powerful laser beam

　　Improve visibility and range

　　One of the main advantages of the 301 500MW green light high power laser pointer is its powerful laser beam. Unlike low-power laser pointers, this model offers excellent visibility even in bright environments. Whether you’re giving a presentation in a well-lit room or pointing out the stars in the night sky, the 301 500MW green high power laser pointer ensures your beam is clearly visible.

　　And, the extended range of this laser pointer is particularly noteworthy. The higher power allows the beam to travel long distances, allowing it to be used in a variety of outdoor activities. Whether you’re a teacher, astronomer, or adventurer, having a laser pointer with long-range capabilities enhances your ability to interact with your surroundings.

　　”The power and range of the 301 500MW green high power laser pointer is outstanding. It penetrates ambient light, making it ideal for lecture halls or brightly lit conference rooms. ￣

　　Applications in astronomy and outdoor activities

　　Enhance your stargazing experience

　　Amateur astronomers can benefit greatly from the 301 500MW green high-power laser pointer. Its powerful beam can be precisely pointed in the night sky, making it easier to identify specific stars, planets, or constellations. In addition, the extended range allows astronomers to share their observations with others, even when observing through telescopes or binoculars.

　　Emergency signals and survival tools

　　In an emergency, a high-power laser pointer like the 301 500MW green light high-power laser pointer can be a lifesaver. Its intense beam can reach considerable distances, making it an effective tool for signaling rescuers during outdoor expeditions or search and rescue operations. Some models even come with additional security features, such as SOS mode, which emits a distress signal in Morse code.

　　Learn about laser safety

　　Responsible handling and precautions

　　Given the higher power of the 301 500MW green light high power laser pointer, it is crucial to handle it responsibly. Direct exposure to the laser beam may cause eye damage or skin burns. Therefore, it is crucial to never aim the laser at a person or animal, especially their eyes. When using the laser pointer outdoors, it is advisable to make sure that it does not traverse the flight path of the aircraft to avoid accidental distraction by the pilot.

　　The importance of protective eyewear

　　Protective eyewear is an important consideration when using a high-powered laser pointer. Laser goggles with an optical density appropriate to the wavelength of the laser should be worn to protect the eyes from accidental exposure. Always make sure you buy safety-certified goggles that are specifically designed for the power and wavelength of the laser pointer you’re using.

　　conclusion

　　The 301 500MW green high power laser pointer provides a powerful and versatile tool for a wide range of applications. Its high output power and superior range make it ideal for educators, astronomers, outdoor enthusiasts, and professionals. However, this laser pointer must be handled responsibly and the necessary safety precautions must be followed to prevent accidents and protect your own well-being and the well-being of others.

　　1 IntroductionIn order to achieve the goal, purple laser Turn cocoon into butterfly, constantly polish product quality, improve business ability, and finally have a place in the market. https://highpowerlaser.shop/collections/frontpage

　　Laser beam synthesis has been proposed and widely studied and applied in order to overcome the challenges encountered in improving the performance of single laser beams. As early as the 60s of the 20th century, Mr. Liu Songhao [1″ target=_blank> pointed out in the article “The Development Status of Lasers”: “In terms of device structure, in order to increase the output energy of a single rod-shaped working substance, in addition to increasing the length and diameter of the rod and increasing the energy density of the excitation light source, a multi-light source excitation device can be used. In order to increase

　　With the addition of output energy, dozens or even hundreds of devices can be coupled to form a so-called light maser array. The use of a maser array not only has the potential to greatly increase the output energy of the device, but also reduces the divergence angle of the output beam

　　Few. This approach has the potential to be one of the ways to develop high-energy devices. “The results of the literature survey show that the research process of laser beam synthesis is almost synchronous with that of lasers [2” target=_blank>

　　。 As stated in Ref. [1″ target=_blank>, “The implementation of the light maser array is very difficult, and many complex scientific and technical problems must be solved. ￣

　　Since the beginning of the 21st century, fiber laser has been fully developed. With the overlapping factors such as the modularization of fiber lasers, the superior performance of fiber devices, and the rapid development of information technology, important progress has been made in laser beam synthesis technology with fiber lasers as typical units [3-12″ target=_blank>, which has become a scientific frontier and key research direction in the field of lasers, and has been an important topic of international conferences such as Photonics West and Advanced Fiber Laser.

　　The domestic research results are also very fruitful, with scientific and technological journals successively publishing special albums [13-14″ target=_blank>, comprehensive academic conferences setting up special seminars [15″ target=_blank>, and beam synthesis gradually realizing the empowerment of laser systems [16″ target=_blank>. There are many types of lasers that can be synthesized and technical solutions for synthesis [17-23″ target=_blank>. Ref. [24″ target=_blank> provides a comprehensive analysis of the progress of laser beam synthesis from 2011 to 2020, covering all laser types. Ref. [25″ target=_blank> focuses on the progress of fiber laser coherent synthesis. In this paper, we comprehensively review the research progress of various synthesis technologies in recent years from multiple perspectives such as power synthesis, spectral synthesis, coherent synthesis and composite synthesis, analyze the development trend, summarize the research experience, and refine the latest trends, so as to provide reference for scientific research, teaching and application personnel in the field of fiber laser and beam synthesis.

　　2 Power synthesis

　　Power synthesis is the most common laser synthesis method [26″ target=_blank>, which can generally be divided into two categories: space power synthesis and all-fiber power synthesis. Among them, space synthesis generally refers to the control of the optical axis of each laser beam to make it pass

　　Free transmission or focusing and other methods to achieve spot coincidence at the target. Their common feature is that the beam quality is reduced while increasing the power [27″ target=_blank>. The pigtail coupled diode laser, which is commonly used in the development of fiber lasers, mostly adopts the method of spatial synthesis in its internal structure. For fiber lasers, most of the reports on spatial synthesis have focused on the development of high-power fiber laser systems [28″ target=_blank>. In recent years, there have been few reports on technology.

　　In contrast, all-fiber power synthesis has been a hot topic in laser synthesis in recent years, and its typical structure is shown in Figure 1 [29″ target=_blank>. As early as 2013, IPG Photonics reported that the world’s first 100 kW high-power fiber laser system was realized based on the power synthesis of 90 kW lasers, which was successfully applied to the field of laser processing [30″ target=_blank>. Soon after, a high-power fiber laser system in the 120 kW class was reported. The key to all-fiber power synthesis is the low-insertion-loss, high-power adaptive power combiner, which IPG Photonics’ homepage envisions for a 500 kW power output [31″ target=_blank>.

　　With the improvement of traction and power combiner performance required by applications, in recent years, several units have realized 100 kW fiber laser systems based on all-fiber power synthesis. In 2021, the University of South China and Ruike Gong

　　The company reported the first 100 kW fiber laser system in China [32-33″ target=_blank>; In 2024, Kaplin, Han’s, and Chuangxin have successively reported high-power fiber laser systems ranging from 150 kW to 200 kW [29,34-36″ target=_blank>. As long as the power beam combiner has sufficient “brightness redundancy” (i.e., the product of the diameter of the output pigtail and the numerical aperture is greater than the sum of the diameter and numerical aperture of all input fibers), then there is great potential to achieve low insertion loss and high power acceptance. Of course, the product of the diameter of the output pigtail and the numerical aperture also determines the beam quality of the output laser, which determines the application scenario and application effect.

　　In addition to continuing to increase the output power, there are three trends worth paying attention to in the power synthesis of all-fiber structures. The first is the development of ultra-high power fiber laser systems of 100 kW (or more) based on all-fiber power synthesis, which not only drives technological progress in the direction of laser devices and laser technology, but also promotes the development of advanced optoelectronic measurement [37″ target=_blank>. For example, the 150 kW fiber laser system reported in Ref. [35″ target=_blank> has been criticized by researchers because the output power exceeds the range of common calorimetry-based laser power meters

　　The innovative use of optical pressure-based power measurement methods [38″ target=_blank> provides a solution for direct measurement of higher power lasers. The second is the quality (brightness) of the laser beam synthesized by power. As mentioned above, if the product of the diameter of the output pigtail and the numerical aperture is large enough, then ultra-high power output can be achieved

　　But the quality of the output laser beam will deteriorate. The author has noticed that in 2009, IPG Photonics announced a project to achieve an output power of more than 50 kW and a beam quality of M2 through multi-laser all-fiber power synthesis (e.g., phase control [25″ target=_blank>) are possible.To further improve the beam quality of the system output, for example, Ref. [40″ target=_blank> has achieved a highly stable near-single-mode 10,000-watt laser output, and the mode control based on photonic lanterns [41″ target=_blank>, which has attracted much attention in recent years, is essentially in this category.

　　1 IntroductionEven if there are obstacles to moving forward, strong laser pointer high power We should also persevere, forge ahead bravely, cut waves in the sea of the market, hang on to Yun Fan and strive for the first place. https://highpowerlaser.shop/collections/burning-laser

　　Laser beam synthesis has been proposed and widely studied and applied in order to overcome the challenges encountered in improving the performance of single laser beams. As early as the 60s of the 20th century, Mr. Liu Songhao [1″ target=_blank> pointed out in the article “The Development Status of Lasers”: “In terms of device structure, in order to increase the output energy of a single rod-shaped working substance, in addition to increasing the length and diameter of the rod and increasing the energy density of the excitation light source, a multi-light source excitation device can be used. In order to increase

　　With the addition of output energy, dozens or even hundreds of devices can be coupled to form a so-called light maser array. The use of a maser array not only has the potential to greatly increase the output energy of the device, but also reduces the divergence angle of the output beam

　　Few. This approach has the potential to be one of the ways to develop high-energy devices. “The results of the literature survey show that the research process of laser beam synthesis is almost synchronous with that of lasers [2” target=_blank>

　　。 As stated in Ref. [1″ target=_blank>, “The implementation of the light maser array is very difficult, and many complex scientific and technical problems must be solved. ￣

　　Since the beginning of the 21st century, fiber laser has been fully developed. With the overlapping factors such as the modularization of fiber lasers, the superior performance of fiber devices, and the rapid development of information technology, important progress has been made in laser beam synthesis technology with fiber lasers as typical units [3-12″ target=_blank>, which has become a scientific frontier and key research direction in the field of lasers, and has been an important topic of international conferences such as Photonics West and Advanced Fiber Laser.

　　The domestic research results are also very fruitful, with scientific and technological journals successively publishing special albums [13-14″ target=_blank>, comprehensive academic conferences setting up special seminars [15″ target=_blank>, and beam synthesis gradually realizing the empowerment of laser systems [16″ target=_blank>. There are many types of lasers that can be synthesized and technical solutions for synthesis [17-23″ target=_blank>. Ref. [24″ target=_blank> provides a comprehensive analysis of the progress of laser beam synthesis from 2011 to 2020, covering all laser types. Ref. [25″ target=_blank> focuses on the progress of fiber laser coherent synthesis. In this paper, we comprehensively review the research progress of various synthesis technologies in recent years from multiple perspectives such as power synthesis, spectral synthesis, coherent synthesis and composite synthesis, analyze the development trend, summarize the research experience, and refine the latest trends, so as to provide reference for scientific research, teaching and application personnel in the field of fiber laser and beam synthesis.

　　2 Power synthesis

　　Power synthesis is the most common laser synthesis method [26″ target=_blank>, which can generally be divided into two categories: space power synthesis and all-fiber power synthesis. Among them, space synthesis generally refers to the control of the optical axis of each laser beam to make it pass

　　Free transmission or focusing and other methods to achieve spot coincidence at the target. Their common feature is that the beam quality is reduced while increasing the power [27″ target=_blank>. The pigtail coupled diode laser, which is commonly used in the development of fiber lasers, mostly adopts the method of spatial synthesis in its internal structure. For fiber lasers, most of the reports on spatial synthesis have focused on the development of high-power fiber laser systems [28″ target=_blank>. In recent years, there have been few reports on technology.

　　In contrast, all-fiber power synthesis has been a hot topic in laser synthesis in recent years, and its typical structure is shown in Figure 1 [29″ target=_blank>. As early as 2013, IPG Photonics reported that the world’s first 100 kW high-power fiber laser system was realized based on the power synthesis of 90 kW lasers, which was successfully applied to the field of laser processing [30″ target=_blank>. Soon after, a high-power fiber laser system in the 120 kW class was reported. The key to all-fiber power synthesis is the low-insertion-loss, high-power adaptive power combiner, which IPG Photonics’ homepage envisions for a 500 kW power output [31″ target=_blank>.

　　With the improvement of traction and power combiner performance required by applications, in recent years, several units have realized 100 kW fiber laser systems based on all-fiber power synthesis. In 2021, the University of South China and Ruike Gong

　　The company reported the first 100 kW fiber laser system in China [32-33″ target=_blank>; In 2024, Kaplin, Han’s, and Chuangxin have successively reported high-power fiber laser systems ranging from 150 kW to 200 kW [29,34-36″ target=_blank>. As long as the power beam combiner has sufficient “brightness redundancy” (i.e., the product of the diameter of the output pigtail and the numerical aperture is greater than the sum of the diameter and numerical aperture of all input fibers), then there is great potential to achieve low insertion loss and high power acceptance. Of course, the product of the diameter of the output pigtail and the numerical aperture also determines the beam quality of the output laser, which determines the application scenario and application effect.

　　In addition to continuing to increase the output power, there are three trends worth paying attention to in the power synthesis of all-fiber structures. The first is the development of ultra-high power fiber laser systems of 100 kW (or more) based on all-fiber power synthesis, which not only drives technological progress in the direction of laser devices and laser technology, but also promotes the development of advanced optoelectronic measurement [37″ target=_blank>. For example, the 150 kW fiber laser system reported in Ref. [35″ target=_blank> has been criticized by researchers because the output power exceeds the range of common calorimetry-based laser power meters

　　The innovative use of optical pressure-based power measurement methods [38″ target=_blank> provides a solution for direct measurement of higher power lasers. The second is the quality (brightness) of the laser beam synthesized by power. As mentioned above, if the product of the diameter of the output pigtail and the numerical aperture is large enough, then ultra-high power output can be achieved

　　But the quality of the output laser beam will deteriorate. The author has noticed that in 2009, IPG Photonics announced a project to achieve an output power of more than 50 kW and a beam quality of M2 through multi-laser all-fiber power synthesis (e.g., phase control [25″ target=_blank>) are possible.To further improve the beam quality of the system output, for example, Ref. [40″ target=_blank> has achieved a highly stable near-single-mode 10,000-watt laser output, and the mode control based on photonic lanterns [41″ target=_blank>, which has attracted much attention in recent years, is essentially in this category.

　　Great days happen in the second half of the year, and many enterprises will hold large-scale celebrations such as anniversaries and annual meetings at the end of the year, or hold corporate sports meetings while the autumn is crisp. Then it is inevitable to customize some badges, medals, trophies and other products. So what are the common customization of medals? Next, Hele Gift Xiaobian will take you to know.It is reported that, custom medals for awards The data performance is getting better and better, which is of great reference value and is likely to become the vane of the industry. https://www.karonmetal.com

　　1, high-grade metal medal medal medal

　　This kind of customization is mostly used for medals, medals, etc., and the workmanship is exquisite and very advanced. Exquisite gold foil carvings, each step is meticulous and shiny, gorgeous and noble, in line with the honor of medals and medal winners. With innovative technology, the fonts on the medals are clear and the patterns are colorful, which shows the quality.

　　2, paint badge badge

　　Paint badges are made of copper, iron, zinc alloy, etc. Most badges are made of copper. The surface of the badge generally has obvious concave-convex feeling, and the texture is very good. Adding baking paint and glue drops will make it smooth and bright, with clear lines and bright colors. Compared with enamel badges, it is cheaper and cost-effective, and it is the first choice for making middle and high-grade badges.

　　3, gold high quality bronze badge

　　Of course, you can directly choose this kind of stamping badge for the copper badge, which is full of metallic color, so you don’t have to worry about the color difference of printed glue, and it is also very advanced. And choose this golden style when customizing, which is more atmospheric and durable. At the same time, the mold can also be hollowed out, and the effect is very delicate and beautiful.

　　The integration of custom high flexible shielded cables plays a critical role in ensuring smooth operations, particularly in robotics and industrial machinery. These specialized cables not only handle complex motion but also protect against electrical interference, making them indispensable in modern automation.Doing these simple things can also make flexible industrial ethernet cable Sowing high-quality genes will eventually grow into towering trees and become the leader in the industry. https://www.linkcablecn.com

　　Key Features of Custom High Flexible Shielded Cables

　　Custom high flexible shielded cables are designed to meet the demands of automation systems. Their unique features include:

　　High Flexibility

　　These cables are engineered to withstand repeated bending and twisting, making them ideal for applications involving constant motion, such as robotic arms and conveyor systems.

　　Electromagnetic Interference (EMI) Shielding

　　The shielding material prevents EMI, ensuring that sensitive equipment operates without disruptions. This is especially crucial for flexible shielded cables for robotics, where precise control is necessary.

　　Durability in Harsh Environments

　　Automation often occurs in challenging conditions, including extreme temperatures, moisture, and exposure to chemicals. Custom shielded cables are built to endure these environments while maintaining performance.

　　Customizable Solutions

　　Manufacturers can tailor the cable¨s length, diameter, and shielding type to meet specific industry requirements, ensuring compatibility with various automation systems.

　　flexible shielded cables factory.jpg

　　Applications of High Flexible Shielded Cables in Automation

　　Application Description

　　Robotics Enable seamless movement and control of robotic arms and automated systems.

　　Industrial Machinery Provide reliable connections for dynamic parts in machinery.

　　Medical Devices Ensure precision and safety in equipment requiring high-frequency signals and flexible connections.

　　Data Transmission Systems Deliver stable and interference-free data transfer in high-motion environments.

　　Automotive Manufacturing Withstand repetitive motion and harsh conditions in production lines.

　　Laser pointer, also known as laser pointer, pointer, etc., is a pen-shaped emitter designed to be portable, easy to hold in the hand, and processed into a laser module (diode). Common laser pointers include red (650-660nm), green (532nm), blue (445-450nm), and blue-violet (405nm). It is usually used by newspapers, teachers, and docents to project a point of light or a ray of light directed at an object.As can be seen from the new data, high powered lasers that burn The market influence is also growing, and the product share is also relatively increasing, which has great potential in the future. https://highpowerlaser.shop/collections/burning-laser

　　A physical picture of a common laser pointer

　　Early laser pointers (HeNe) HeNe gas lasers produce a laser wavelength of 633nm, typically 1mW. The cheapest laser pointers use a deep red laser diode with a wavelength of nearly 670/650nm. Slightly more expensive with red, orange 635nm diodes. Other colors are also possible, with the green laser at 532 nm being the most common alternative. Later, an orange-yellow laser pointer with a wavelength of 593.5 nm appeared. In 2005, a 473nm blue laser pointer appeared, which was introduced in September. At the beginning of 2010, a blue-violet laser pointer with a wavelength of 405 nm appeared.

　　The brightness of the laser beam on the spot depends on the laser power, the reflectivity of the surface. For the same power, the spectrum of the human eye in the green region (wavelength 520-570nm) is most sensitive and appears to be brighter than other colors. The sensitivity of the wavelength of red or blue decreases.

　　A laser pointer that typically represents the output power of milliwatts (mW). In the United States, lasers are classified by the National Standards Institute and the Food and Drug Administration (FDA). Visible laser pointers (400-700nm) operate at less than 1mW of power, Class 2 or II, visible 1-5mW laser pointers, are Class 3A or IIIa. Class 3B or IIIb lasers produce 5 to 500 mW; Class 4 or 4 lasers produce more than 500mW. The U.S. FDA regulations state that “demonstration laser products” must meet applicable requirements for Class I, IIA, or IIIA devices.

　　Measured laser map

　　Red and orange laser pointers

　　This is the simplest laser because there are red diodes. No more than one battery-powered laser diode. The first red laser pointer, released in the early 80s of the 20th century, sold for a few hundred dollars. Today, they are much smaller and generally cost very little. Diode-pumped solid-state (DPSS) red lasers at 671nm are common.

　　Yellow laser pointer

　　Yellow laser pointers are extremely rare in the market. DPSS technology is obtained by adding two laser beams with wavelengths of 1064 nm and 1342 nm through a nonlinear crystal. The complexity of the process makes the yellow laser pointer unstable and inefficient, with an output power of 1-10mW depending on the temperature, and a pattern jump if it is overheated or too cold. This is because the size of the laser pointer does not provide the required temperature stabilization and cooling parts. In addition, most 593.5nm laser pointers operate in pulsed mode to allow for the use of pump diodes with smaller size and power.

　　Green laser pointer

　　The nonlinear crystal is excited by an infrared laser with a wavelength of 808nm to produce 1064nm infrared light, and then 532nm green light is generated by frequency doubling, which belongs to solid-state lasers. Some green lasers operate in pulsed or quasi-continuous mode to reduce cooling problems and extend battery life. Green lasers, which do not require frequency doubling, have higher efficiency. At night, even low-power green light can be seen due to Rayleigh scattering of atmospheric molecules, and this laser pointer is often used by astronomy enthusiasts to point to stars and constellations. Green laser pointers can have a variety of output powers. The 5mW (IIIA) is the safest to use and is also visible in dim lighting, so no more power is required for pointing purposes.

　　Blue light laser pointer

　　Blue laser pointers such as a specific wavelength of 473 nm usually have the same infrastructure as green lasers. Many factories in 2006 began to produce blue laser modules, mass storage devices, these used laser pointers. This is the type of equipment that pumps the frequency doubling with semiconductors. They most often emit 473 nm, which is doubled by a frequency multiplied by a diode-pumped laser at 946 nm ND:YAG laser or yttrium neodymium vanadate crystals. The BBO crystal with high output power is used for KTP crystals as a lower power doubling.

　　Visible wavelength green laser pointer

　　Some manufacturers are selling indicators of parallel blue laser diodes measuring power over 1500 milliwatts. However, since the claimed power of the “laser pointer” product also includes infrared power (only in semiconductor pumping technology) is still in the beam (for reasons discussed below), the laser is still problematic on the basis of the DPSS-type elements of the more strict visual blue, and is usually not applicable. Due to the use of higher neodymium harmonics, the frequency doubling conversion efficiency is low, and the infrared power is a small fraction of the optimal configuration of the semiconductor pump module, and the conversion of a blue laser at 473 nm is typically 10-13%, which is about half of that typical of green lasers (20-30%).

　　The blue laser can also directly fabricate indium gallium nitride semiconductors, producing frequency-grabby blue light. There are blue laser diodes on the market (447＼5 nm), and the device is a bright same violet laser diode with a power of less than 405 nm, because the longer wavelength is closer to the peak sensitivity of the human eye. The mass production of laser projectors for commercial equipment, such as laser diodes, has driven down prices. The use of popular high-power (1W) 447 nm indicators, which also have improved optical versions of better collimation and lower divergence, comparable to the use of these portable devices, has reduced the sensitivity of green lasers with the intention and cost of human harm.

　　Why should even the medals and badges be customized? This is a problem that many people don’t understand. In fact, in our life, no matter in schools or enterprises, we will encounter all kinds of competitions, and each competition will inevitably have different awards. Apart from some realistic material rewards, medals, trophies or badges are also essential.Even so, custom made medals We must also adhere to the quality of the industry and create unique products for the company. https://www.karonmetal.com

　　Customized medals, trophies and badges represent a sense of ceremony given by the organizers and a sense of honor given by the contestants themselves. Then what should we pay attention to when customizing medals and badges as demanders?

　　First, the medal badge style

　　When customizing the design style of medals and badges, it is necessary to integrate the design style that the customization party wants based on the purpose of the product and the inheritance of corporate culture and the spirit of events. At the same time, it is necessary to customize different types of products according to different scenes, and determine the size, proportion, coordination, appropriateness and standard of medal badge products.

　　II. Contents of medals and badges

　　Generally, the customized surface content of the medal badge is the company (school or organization) abbreviation, logo, theme and other information, so it is forbidden that too much information leads to the accumulation of words on the surface of the medal badge. As simple as possible, accurately and completely express the purpose of making medal badges.

　　Third, the medal badge technology

　　Because the materials for making medals and badges are different, the manufacturing process is also diverse. For example, the production of metal medals can be made into colorful and exquisite medals through baking paint and enamel processing, which has a strong three-dimensional effect and various patterns are prominent. Soft enamel and resin are used as coloring materials, and the surface can be plated with gold, nickel and other metal colors, which are smooth and delicate, giving people a very noble feeling.

　　Fourth, medal badge materials

　　The materials for making customized medals and badges need to be determined according to the needs of the customization party. Compared with precious metals, gold, silver and ordinary metals, the precious materials of gold, silver and precious metals are more expensive. The customization party can decide whether the medals are high-grade or not and what materials to choose according to the requirements of different scenes.

　　V. Details of medals and badges

　　The details of customizing the medal badge mainly show whether the font selection is appropriate when customizing the medal badge, and what style of medal wooden support and medal ribbon are selected to match the medal badge; The thickness of medal badge, the width of hem and edge, the plane arch surface, etc., are considered according to different customization requirements.

　　In today’s modern electrical systems, ensuring signal integrity and preventing electromagnetic interference (EMI) are critical for the smooth operation of sensitive devices. This is where multicore shielded cables come into play. These cables are designed with multiple cores of insulated conductors wrapped in a protective shield that helps block external electromagnetic interference. Whether you¨re dealing with multicore shielded cables for robotics or industrial machinery, understanding how these cables prevent interference is key to optimizing your systems.With the expanding influence of the industry, EV cable manufacturing Our business is also constantly spreading, and the development of the market is also gradually advancing. https://www.linkcablecn.com

　　What Are Multicore Shielded Cables?

　　Multicore shielded cables are specialized cables with several internal conductive cores, each typically insulated to prevent short circuits. The key feature of these cables is their protective shield, often made from materials like copper, aluminum, or braided wire, which surrounds the cores. This shield serves as a barrier against external electrical noise and interference, ensuring the integrity of the transmitted signal.The core structure of the cable allows for multiple signals to be transmitted through a single cable, which makes them ideal for a range of applications, from power distribution to data transfer. In environments where noise and signal degradation can compromise system performance, multicore shielded cables offer a reliable solution.

　　flexible multicore shielded cable.jpg

　　How Do Multicore Shielded Cables Prevent Interference?

　　Electromagnetic Interference (EMI) Shielding:The primary function of the shield in multicore shielded cables is to protect against electromagnetic interference (EMI). EMI is caused by electrical signals that radiate from power lines, machinery, or other devices. These signals can disrupt sensitive equipment, causing data loss, equipment malfunction, or even system failure. The shield in shielded multicore cables acts as a barrier, absorbing and deflecting these unwanted electromagnetic waves, ensuring that the transmitted signals remain unaffected by external interference.

　　Grounding the Shield:In many multicore shielded cables, the shield is grounded to divert the interference away from the sensitive conductors inside the cable. This grounding method helps direct the EMI to a safe location, typically back to the ground, where it cannot affect the system. The grounding further enhances the ability of the cable to maintain signal integrity and avoid signal degradation caused by external noise.

　　Prevention of Crosstalk:In cables with multiple cores, especially those used in multicore shielded cables for robotics and other industrial systems, the risk of crosstalk！where signals from one core interfere with others！can be high. The shielding not only prevents external interference but also helps reduce crosstalk between the cores themselves. This ensures that each signal remains clear and free from distortion, which is especially important in complex systems that rely on precise data transfer.

　　Flexibility and Durability:Flexible multicore shielded cables offer an added benefit in environments where cables need to be moved or bent regularly. The flexibility of these cables doesn¨t compromise their ability to block interference. These cables maintain their shielding effectiveness even under bending or twisting, making them ideal for robotics, manufacturing, and other dynamic applications where movement is common.

　　Improved Signal Quality Over Long Distances:One of the main advantages of shielded multicore cables is their ability to maintain high-quality signal transmission over long distances. Without proper shielding, cables can suffer from signal degradation due to the interference picked up over the distance. The shielded design of these cables minimizes the risk of signal loss, making them an excellent choice for applications requiring long cable runs, such as in industrial settings, robotics, or data centers.

　　Although many batteries are not durable now and can only be used for 1~2 years, we can buy more durable batteries if we pay attention to these three points when buying batteries, and it is not a problem to use them for 3~4 years.understand e-bike battery In order to better serve customers and reflect the core competitiveness of products. https://www.chamrider-battery.com/

　　Point 1: Try to choose high-end batteries.

　　At present, the batteries of electric vehicles have been divided into three grades, high, middle and low, especially the low-grade batteries. Most of them directly use recycled lead, because the price of this battery is cheap, and battery brands also use this battery to seize the market.

　　Why can the battery of electric vehicle only be used for 2 years? The key to these two reasons is how to buy a durable battery-driving.

　　If you want to choose a durable battery, you need to avoid this low-end battery, but try to choose a high-end battery. High-end batteries often use primary lead, and there are some black technologies, such as graphene batteries, which add alloy materials and graphene, so the battery has better conductivity and longer service life.

　　Point 2: Choose a heavier battery.

　　If you don’t know which battery is better, there is a simpler way, that is, look at the net weight of the battery. Under the premise of the same capacity, which battery is heavier, then this battery is definitely more durable.

　　Why can the battery of electric vehicle only be used for 2 years? The key to these two reasons is how to buy a durable battery-driving.

　　As we all know, the battery of electric vehicle is mainly composed of three parts, namely, battery shell, electrolyte and electrode plate. If the battery with the same capacity is heavier, its electrode plate thickness will increase, so it will be more corrosion-resistant and can make the battery more durable.

　　Point 3: Try to choose a large-capacity battery.

　　When buying an electric car, everyone has a budget within the budget, and choose a battery with large capacity as much as possible, such as the same size. Ordinary lead-acid batteries are only 20Ah, while graphene batteries can reach 23Ah, so this battery can not only run better, but also store more electricity.

　　Why can the battery of electric vehicle only be used for 2 years? The key to these two reasons is how to buy a durable battery-driving.

　　On the one hand, a large-capacity battery can make the electric vehicle run farther, on the other hand, it can also reduce the charging times. We know that the service life of the battery is mainly determined by the number of charging and discharging cycles. If the charging times are reduced, the service life of the battery will be relatively extended.

　　Summary:

　　The battery of electric vehicle is very important. The reason why the battery is not durable in recent years is because of the battery shortage and the use of recycled lead. Therefore, if we want to prolong the service life of the battery and buy a more durable battery, we just need to avoid these problems. Therefore, when buying a durable battery, try to choose a high-end battery, a battery with heavier weight and a battery with larger capacity, which can make your battery last for two years.