With overcapacity and increased competition, many LED companies nationwide have entered the development bottle. On June 25th, as the benchmark for LED lighting, the 2014 Nobel Prize in Physics, Nakamura Shuji attended the 2016 China Chengdu Global Innovation and Entrepreneurship Fair. Nakamura Shuji boldly predicted that laser lighting will replace LED lighting in the next decade.
Nakamura Shuji is not only the winner of the 2014 Nobel Prize in Physics, but also known as the "21st Century Edison" by the Royal Swedish Academy of Sciences.
At present, Nakamura Shuji is studying laser light source. On the 25th, Nakamura Shuji said in an interview with the media after the 2016 China·Chengdu Global Innovation and Entrepreneurship Fair World Future Technology Forum that laser lighting will replace LED lighting in the next 10 years.
It is understood that the efficiency of laser illumination is thousands of times that of LED, which not only increases the projection distance, but also improves safety, while the volume is smaller and the structure is more compact. In addition to the field of lighting, laser display will have a wider application in projectors, digital cinema, television, stage lights, large screen splicing, and automobiles. Nakamura Shuji believes that "a laser light, lighting 100 square meters area is no problem." But because the laser is now too expensive, so the application rate is not high, but the future is a big trend.
The blue light diode invented by Nakamura Shuji has been widely used in our daily lives. But the blue laser at the forefront of technology is only used in CD recording, which is the familiar Blu-ray disc. Nakamura Shuji further introduced, "Blue laser can also be used in many aspects such as medical treatment, detection, etc. For example, blue laser can detect DNA for the benefit of human beings." In addition, now there is blue laser illumination, one light can Illuminate the range of one hundred square meters.
Analysis: Diversified applications of lasers
Lighting application
Since the principle of laser light source is different from that of ordinary light source, laser light is only a monochromatic light source, and light has only one wavelength instead of ordinary light source to manufacture color light waves covering all wavelengths. This feature makes the laser illumination more illuminating and the light pattern can be controlled accurately, quickly and safely.
In this regard, OSRAM, BMW, Panasonic, etc. have all applied laser lighting to the development of headlights. It is reported that BMW is equipped with a laser lighting system on its i8 concept car to show the world that compared with the existing LED headlights, the laser headlights are 1000 times brighter than the LED headlights, and at the same time, the volume is smaller, more energy-saving, and the illumination distance is farther. . And announced that it will be fully popularized in production cars in 2-3 years.
On the other hand, due to the high efficiency of the laser source, the power consumption of laser illumination at the same time as high brightness is surprisingly small, which means lower power demand. It has been used in aerospace applications, and even applied to micro-satellite lighting such as CubeSat.
laser processing
In addition to the use of lasers for the lighting itself, the impact of lasers on the manufacture of lighting products cannot be ignored. The laser processing process includes various processing techniques such as cutting, welding, surface treatment, punching, marking, scribing, and micro-engraving. As the lighting market continues to grow, the LED manufacturing industry is becoming more and more demanding for capacity and yield. In recent years, the application of high-brightness LEDs in the field of lighting has continued to expand rapidly.
For example, in LED manufacturing, laser wafer dicing as a non-contact process causes dicing to cause wafer microcracks and other damage to be smaller, which results in tighter wafer granules and the reliability of the finished LED device. Greatly improved, LEDs can be used in a large number of backlighting applications in mobile phones, televisions and touch screens.
Lighting Design
However, the monotonous light source has been unable to satisfy people's pursuit of quality of life. On the bare bulbs, the various shades on the cover have made our colorful life. Laser cutting can not only adapt to high-reflectivity materials such as stainless steel, aluminum veneer, brass and copper, but also has the characteristics of moldless processing, which satisfies the requirements of small batch customization in the home decoration industry.
It is understood that the international lighting giant Osram's laser diode, combined with Corning's light-scattering fiber, to create a soft and small fiber can also change color. The laser diode can realize dynamic color control, and the laser diode used to generate the laser is very small in size. At present, the large-scale array layout adopted by the LED to solve the drawback of the weak illumination of the single element will become a history in the era of laser illumination.
The rigid demand for illumination power output will no longer be a hindrance to headlight design, plus the ability to bend, wrap or profile the object around the object while maintaining the brightness and uniformity of the light. This also means that stylists can create a more liberal avant-garde design for headlight design.
Laser technology plays an important role in the modern lighting industry, driving product innovation in the lighting industry.
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Product introduction:
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