The weakness of the LED light source is mainly that its brightness is somewhat different from the traditional green laser pointer light source. This is also the main reason why the LED light source cannot replace the light bulb light source. If you want to increase the brightness of the LED light source, you need to increase the volume of the LED light. It loses the advantage of lightness of the LED light source, and heat dissipation will become a difficult problem after the volume increases. But overall, LED light source is still a kind of projection light source with great development potential.
Laser is a light source that uses the photoelectric effect to make excited particles emit light under the influence of stimulated radiation. The laser light source is completely different from the bulb light source and the LED light source. First, the color of the laser light is very pure, and its monochromaticity is more than 10 times higher than that of ordinary light sources. This makes the laser light source’s projection equipment far better in color performance than the bulb light source, and has strong stability. For long-term use, the image quality will maintain high brightness, color saturation and contrast, and the color of the screen is always consistent.
In addition, the laser is also very excellent in brightness performance. By increasing the number of lasers, it is easy to increase the luminous flux of a single laser projector to 10,000-50,000 lumens or even higher, and the service life of its green light pointers is still very high. It can realize that the projection equipment does not need to replace the light source during the service life.