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With products and the rapid development of audio-visual messages, whether known in education, business negotiations, or areas of the home entertainment area to the demonstration at high and shocking display projector The devices are here to stay. When the brightness, contrast and resolution to the basic parameters such as rising at the same time, the projector lamp is also very quiet transformations take place.

We know that, additional to the projection display chip DLP projector shows the most important, it determines the performance of a projection image sharpness and brightness directly. Working with the projection of the time, the brightness can be reduced naturally persists, project the image becomes less clear, while the consumption of the projector lamp should be replaced to some extent the point. However, to better save users the cost of post-use is a high cost to keep the lamp more and more important, also very worthy of the majority of users in more maintenance. Principles of the projection bulb

Type of view, the light may include projector lamps in metal halide lamps, high pressure mercury lamp, UHP, UHE, etc. can be shared, then a rookie a Xenon lamp.

metal halide lamps, by filling a metal halide bulb in his name, his advantage is cheap, are lower compensation. In the light bulb in a state of light, the voltage across the lamp is typically about 60V, a high-pressure gas inside the bulb, the filament in a semi-liquid, the temperature is higher than a thousand degrees, so that the projector is cooling demand for more power more commonly used in larger LCD projector.

The downside is that life is short but the life of 2000 hours with the brightness of the halogen lamp is very metal cavities that can work 1000 hours, the general effect of the projected image even reluctantly, and then continue use the projected image is very bad. Currently, metal halide bulbs are discarded bulbs projector market, is replaced by the lamp cold light source of high pressure mercury.

UHE UHE lamp is in a class of ultra-high pressure mercury lamp more suitable for long-term use. The prices are also relatively modest, probably about 2,000 yuan, the current trend is generally used HEU projection. UHE lamp infrared optical filter principle, in the face of cold, heat is relatively small, can be effectively reduced the power of the projector. This ultra-high pressure mercury lamp technology fillings often as cold bulb is the most striking feature of the period can usually reach more than 3,000 hours during working hours to 2000 hours, the brightness is almost no decay.

This lamp is not just a normal time as halogen lamps and metal twice the power curve smooth bulb, high brightness, time of use is no significant reduction in the brightness and the price is also better suited for most applications projection public bulbs.

UHP UHP lamp, which is ultra-high performance, including for the high-pressure mercury lamp, the longer life expectancy, the overall nominal 6000 hours, the 12,000 longest par and even hours, 4000 hours total working hours are not be substantially reduced brightness. Philips invented the light bulb is a patented technology that turns off the failure immediately. Compared with the UHE lamp, not only in the same power dissipation can UHP lamp produce a large amount of light, and can effectively remove the flicker from happening, and the form of damage control smaller, less shiny, longer life.

to the first two is the ideal counterpart, UHP projector lamp light source, but its patented technology for Philips monopoly, the price is high, usually over 3,000 yuan, usually only high-end projector before use it. But with the growing popularity of projectors and technology updates, some have started to use the lamp to mid-UHP.

using positive and negative electrode arc generated between the output of a light source that is high because of their technical content, the prices are more expensive, currently used in high-end projector.
Projection lamp