Recently, the Nobel Prize winner in physics, "Father of Blue LED" Nakamura said in a public speech that GaN on GaN LED is the future, and LD laser lighting will be the third generation of solid-state lighting technology, and its development potential is promising.
Nakamura Shuji founded Soraa and developed white LED lighting products based on purple LEDs. He said that the blue LED that solves the PN type problem is the first generation LED. The GaN on GaN LED is the second generation LED. It is already a mass production product. In 2006, there were technical patent documents published, and in 2008, Sorra was established. The first commercial product was launched in 2012. In 2014, GaN on GaN LED chips were used in a series of lighting source products.
Nakamura Shuji said that this kind of LED through the flip chip method allows the violet light to be excited, and the generated light source and efficiency are optimized. In terms of power consumption, the general LED is only 50% to 60% in the Wall Plug efficiency. However, the efficiency of GaN on GaN LED is 84%, which is much better than traditional LED. Not only that, he hopes that the artificial light source can be close to the sunlight, so this series of products is advertised as a natural light, which will have better color performance than traditional LED.
While LD laser lighting, Nakamura believes that this is the third generation of solid-state lighting technology, and the future development potential is very high. At present, Nakamura has established Soraa's sole-owned spin-off company SoraaLaser for the development and production of LD laser lighting. Mr. Xiu Er said: "The laser does not have the problem of drowning (Droop), and it can be combined with phosphors and safely emits highly concentrated light, which is superior to the light effect produced by other light sources. s future."
SoraaLaser's visible laser source is based on its patented semi-polar GaN laser diode combined with advanced phosphor technology. Because the laser concentrates on a tiny spot on the phosphor to emit light and convert it into white light, the SoraaLaser source delivers safe, highly collimated white light with excellent optical control and high efficiency fiber optic transmission using tiny optical lenses and reflectors. And zero glare light pipe transmission. These advantages are ideal for special lighting applications such as construction, hotels, retail, security, entertainment and automotive.
Currently, SoraaLaser is actively commercializing a new generation of visible laser sources for use in displays, automotive and specialty lighting applications. There are already LCD TVs that use LD backlights, as well as cars that use LD headlights. The future development in this area is very promising.
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