In improving
the luminous efficiency, white light is still a lot of effort to tone
up and down. By improving the YAG fluorescent materials, additives, has
been more than 80, the average color rendering index (Ra). In general,
the use of a blue LED chip, white LED in order to improve the color
rendering is often used to add red or green fluorescent material, or
yellow fluorescent material replaced with green and red materials
tactics. Nichia Chemical Industries, said: "To be Ra more than 90 white
LED, must fundamentally change the fluorescent material. However, Ra
more than 90 products that use generally only museum lighting, etc. is
very limited. While Ra only 80 would be enough size of the market is
very large. Hence, by YAG fluorescent material efforts, it is
sufficient to meet the market requirements. |
