Dialysis laser and LED light source technology advantages and market prospects

In recent years, the projector technology has been continuously developed, and the projection light source has also made continuous breakthroughs. At present, three new light source technologies of LED , laser and LED+ laser have been formed. The biggest feature of these light sources is that the luminous efficiency is high or the lifetime is long. Does not contain harmful elements such as mercury.

LED light source

LED (Light Emitting Diode), a light-emitting diode (LED), is a solid-state semiconductor device that can directly convert electrical energy into visible light.

LED light source does not contain mercury, in line with the environmental protection concept; can achieve a long life of up to 60,000 hours, greatly reducing user costs; with a large color reproduction range, can display images with higher color purity; LED also has safety The improved epoxy resin packaging technology makes the sealing performance and impact resistance better than the bulb, and there is no danger of flashing.

At present, LED light sources have been adopted in projectors and liquid crystal displays. The most commonly contacted are LED projectors, LED TVs and LED displays. Specifically, it should be called LED light source projector, LED backlit TV and LED backlit display.

Mixed light source

The hybrid light source mainly refers to "laser + LED", and the hybrid light source technology is to convert red (high-brightness red LED), green (blue laser through phosphor to green), blue (high-bright blue LEDX1), through DLP chip. Projection allows high-brightness projection without the use of high-pressure mercury bulbs. And the life of the light source reaches about 20,000 hours, which can effectively reduce maintenance and reduce the cost of use. Secondly, the highest brightness screen can be cast in as little as 5 seconds after turning on the power, and there is no need to cool down when the power is turned off.

LED as a projector light source, the biggest drawback is the lack of brightness, which is determined by the characteristics of the LED itself. The addition of the laser is mainly to supplement the weakest blue light source in the LED light source, and to improve the brightness and saturation of the light source as a whole. In this way, brightness and lamp life can be balanced.

Laser source

The laser light source is an electric light source that emits light under the action of excited radiation by an excited state particle, and is a coherent light source. Since the United States' TH Meiman made the ruby ​​laser in 1960, there have been hundreds of laser light sources of various types, and the output wavelength ranges from short-wave ultraviolet to far-infrared. The laser light source can be divided into solid laser source (crystal and germanium glass), gas laser source (including atom, ion, molecule, excimer), liquid laser source (including organic dye, inorganic liquid) according to its working substance (also called active substance). , chelate) and semiconductor laser sources of four types.