Compare the three main light sources of the projector: UHP light source, LED light source and laser light source

[Home Theater Network HDAV.com.cn] Friends who are familiar with home theater projector products should be familiar with all kinds of light sources. Now they are basically divided into three categories: UHP light source (commonly known as high pressure mercury lamp), LED light source and laser light source. (LASER), then the net court will take everyone to compare the advantages and disadvantages of various light sources.

1, brightness contrast

In terms of brightness contrast, the Laser is the highest. The UHP can be used in the form of a dual-lamp stack, which provides 1600 ANSI brightness. In this PK, the LED is relatively weak.

2, luminous efficiency energy efficiency ratio

Lasers at the same brightness require less power, which means more energy savings.

3. Average life expectancy

The average life is defined as the brightness of the light source remaining above 50% of its rated brightness when operating to the above rated life.

The life of the UHP light source is still struggling (after 20,000 hours), the stability of the LED light-emitting diode has been recognized, and the life of the laser is up to 100,000 hours.

4, maintenance cycle comparison

UHP light sources and LASER light sources (LPD) are a group of light sources. The attenuation and color coordinate changes depend on a single part. The LASER light source has a relatively long maintenance period due to its long life. The LED light source is composed of three sets of different color lights, and there are six lights on each group. The degree of attenuation of the different color lights cannot be consistent, and adjustment is needed after a certain time.

5, vulnerability comparison

6, color gamut contrast

7, working temperature comparison

8, energy saving, environmental protection

The comparison of the basic attributes of the three light sources is as above. In summary, each has its own advantages and disadvantages, so the selection is still the most appropriate and cost-effective principle. More fresh and fun home theater information, please pay attention to home theater network (WeChat: cnhifi) http://, the country's most influential home theater audio player interactive media website.

Note: This article is transferred from HIFI.