When using a projector in the past, the most troublesome is that the performance of the light bulb will be attenuated. Finally, when using a projector, you have to turn off the light and pull up the curtain quickly. Although LED (Light Emitting Diode) light source appears later, but the efficiency It is also low, but lasers (laser diodes, LD for short) have advantages such as collimation and convergent light sources, but because of their high power, they are not suitable for general light sources. If they are careless, they will cause harm. .
Texas Instruments, an international leader in the production of projector application chips, broke through this point. With the industry's exploration, it took only 5 years before Taiwan’s Cai Guang, which has only started for 4 years, has spent more than a year. Time, in collaboration with the Ministry of Science and Technology grants and cooperation with the production and research institutes of the photoelectric and materials industries of the Chung Hsing University, developed a key technology for converting lasers into visible light using 'inorganic fluorescents', giving projectors new possibilities. The light source also became the most critical new element in the projector.
In the case of a conventional projector lamp, the lifetime is about 3,000 hours, but the visible light lifetime converted by laser light is at least 20,000 hours or more, and the light source is not attenuated, the projection is more stable, and the replacement of the projection lamp can be greatly reduced. Expensive cost.
The same application has also been developed and applied to the use of headlights, and the light source can also be automatically adjusted to the most suitable condition depending on the surrounding environment. It is no longer the only choice between conventional high beam and low beam. Such a light source can also be used in no one. Searchlights, PUB moving head lights and other purposes.