Projector projection light source which is good

Projector projection laser light source is good.

Laser projectors are brighter and have a better display than projectors with LED light sources. However, the cost of laser light source projector is on the high side, so the price is also much more expensive than the LED light source projector.

Laser light source projectors are also divided into a variety of, respectively, single-color laser light source, two-color laser light source and three-color laser light source. One of the monochrome laser light source is the use of a single blue laser excitation of fluorescent color wheel on the yellow and green phosphors, and then use a prism to split the three colors of light, and ultimately other colors, and then purified through the filter. This principle leads to a monochrome laser light source color and brightness can not simultaneously meet the user's needs, brightness is too high, the color is easy to lose not pure enough.

Projector performance indicators

1, light output

Light output is the light energy output of the projector, the unit is lumens. According to the difference between the test label, the market commonly used to measure the projector light output unit for ANSI lumens and ISO lumens. ANSI lumens are developed by the American National Standards Institute American National Standards Institute, and ISO lumens are developed by the International Organization for Standardization according to the international standard.

2, contrast

Contrast is the ratio of black to white, that is, from black to white gradient level. The larger the ratio, the more gradient levels from black to white, and thus the richer the color performance. Contrast on the visual effect of the impact is very critical, generally speaking, the greater the contrast, the more clear and eye-catching pattern, the more vivid colors, while the contrast is small, it will make the whole picture is gray.