What are the advantages and disadvantages of laser projection, LED projection and ordinary projection?

1, LED light source projector is highly expected for its long light source life and light and portable body size. Following the introduction of high-definition micro-projection chips by Texas Instruments, a core technology manufacturer, projector manufacturers recently launched a 500-lumen high-brightness high-definition LED light source projector, which became a competitor with traditional light source entertainment and entry-level business projectors and quickly occupied the personal market. In the final analysis, LED light source has the following main advantages, so it is deeply welcomed by manufacturers and consumers.

First, long life, which is also the most important advantage of many consumers.

Second, the light color is pure and the color saturation is high.

Third, damp-proof and shock-proof.

2. Laser is an electric light source that uses excited particles to emit light under the action of stimulated radiation. Laser light source is completely different from high-pressure mercury lamp and LED light source. First of all, the color of laser is pure, and its monochromaticity is more than 10 times higher than that of ordinary light sources. Secondly, the directivity of the laser light source is very good, and the divergence solid angle of the beam is very small.

In addition, laser can also achieve high brightness. Only by increasing the number of lasers, the luminous flux of a single laser projector can easily reach more than 10000-50000 lumens, and the service life of its light source can still reach more than 10000-20000 hours, which can not only achieve higher brightness in mini-projector, but also achieve ultra-high brightness in engineering cinema products.

The luminous efficiency of LED light source per unit area is insufficient, which has fatal defects. As we all know, the brightness of an LED light source projector the size of a mobile phone is only about 10 lumens, and that of an ultra-portable projector the size of 1kg is only 500 lumens. If you want to further improve the brightness, you can only make the fuselage bigger and heavier.

Compared with the brightness of 2-3 thousand lumens of traditional light source projector, LED light source projector is still difficult to realize. Therefore, LED light source projectors are currently only suitable for personal and portable business users.