2012 orange fluorescent powder to become the highlight of the high brightness white light

At present, the mainstream white LED on the market are made of blue chip to stimulate yellow phosphor, which is relatively simple and low cost, so it has been widely used. However, the production of such products are not high color rendering, then, how can we make a significant product?

We know that the spectra of all rounder can reach high, make high color products. Three primary colors R, G, B after the color of the spectrum of the three kinds of color is very high, so on the object after the diffuse reflection of the human eye will have a very realistic effect. And we are currently using the blue chip to stimulate the yellow phosphor, there are only two kinds of spectrum (blue and yellow), the lack of red spectrum, which led to the color rendering is not high enough. At present, the excitation efficiency of yellow phosphor is higher than that of red phosphor, so we have to add some red phosphor into the yellow phosphor to improve the. But note that: the efficiency of adding red phosphor after the blue chip to stimulate the yellow fluorescent powder will be relatively reduced, this is because the red spectrum is too long, the other spectral coverage, so add pink color rendering index increased at the same time also reduces the luminous flux.

With the announcement of the U.S. energy star, technical requirements are more stringent, the industry is relatively competitive, and soon the white light is very easy to do Ra80. But the warm white light to highlight the same time at the same time high or difficult. The pursuit of warm white highlights high, the industry's usual practice is to use yellow fluorescent powder mixed with red fluorescent powder to achieve, but the product to do so relatively low luminous flux. Fortunately, the market has seen a relatively awesome fluorescent powder, such as the Taiwan Hongda Trade Limited by Share Ltd (Japan is Asia Pacific special chemical agents) orange phosphor YLO-802B the latest (the peak wavelength of 605nm) and YLO-804B (peak 615nm). The two 3000K warm white powder can achieve Ra80 without reducing the flux, and the stability and consistency is also very good, also can do is white and yellow collocation of high color was 80, the luminous flux does not reduce the effect of. This is currently on the market can not be compared to the silicate phosphor. Silicate powder because of its high temperature, hot and humid properties, will often appear color drift, which is also possible to be eliminated in the future, the new product will be replaced. With the continuous development of material industry, I believe that soon there will be more awesome products.