In the projector market, the types of projectors are varied. Although the types of projector bulbs do not reach the projector level, even if there are only four types, each type has its own characteristics. So what is the projector bulb? Let's take a look at the decoration home decoration network Xiaobian.
What is a projector bulb?
A projector bulb, as the name implies, is the light bulb used by the projector. The current light sources mainly include UHP lamps (super lamps), UHE lamps and metal halide lamps. UHP lamps are an ideal cold light source, but due to their high price, they are generally used in high-end projectors. The UHE lamp produces cold light and has a small size. It can generate a large amount of light at the same power consumption, and has a long life. When it is exhausted, it is extinguished immediately. The advantage is that the service life is long, and it can generally be used for more than 4000 hours, and the brightness attenuation is small.
Which is better for the projector bulb?
1, UHP lamp: UHP is a patented technology Philips invention belongs pressure mercury lamp. An ideal cold light source, generally used in high-end projectors. The compact size, at the same power consumption, can generate a large amount of light to effectively suppress the occurrence of flicker. The weight is only 4 kg, the volume is less than 2 liters, it is easy to carry, and its screen illumination exceeds 1100 lumens, which can achieve a bright XGA display level. Long life, high price, low power consumption, light weight, high brightness and low heat generation.
2 , UHE bulb: UHE bulb is a cold light source, is the ideal light source widely used in mid-range projectors. It will hardly decay after 2000 hours of use. UHE bulbs use optical principles to filter out infrared light, emit cold light, and have relatively low heat, which can effectively reduce projector power consumption. The noise in the eco-brightness mode is only 28dB, providing a quiet atmosphere for the user. After the lens cover is closed for 20 minutes, the projector automatically shuts down, which can effectively save power. The operating power consumption is only 275W, achieving an ultra-high energy efficiency ratio. Moderate price, long life, stable brightness, low noise and energy saving.
3, metal halogen lamp: metal halogen lamp produces warm light, requires higher power to obtain the same luminosity as UHP lamp, half-life is short, generally use about 1000 hours, the brightness will be reduced to about half of the original, and the heat is high, right The projector's cooling system is also highly demanding and should not be used for long-term projection. Low price, short life and high calorific value.
4. Xenon lamp: Xenon lamp is a kind of light source that uses the arc generated by the discharge between positive and negative electrodes. Due to its high technical content and high price, it is currently only used in high-end projectors. Since the spectrum of the xenon lamp is closest to natural light, it can provide superior color than other light sources. Compared with UHP bulbs, xenon lamps have the advantage of being able to switch at any time, and can be turned on again immediately after the xenon lamp is turned off, which was not possible with other projector bulbs. High technical content, high price, excellent color and fast operation.
The above is how Xiaomi TV brought to you by Xiaobian? What are the functions of Xiaomi TV? I believe that everyone has a basic understanding of Xiaomi TV after reading this article. If you want to know more about decoration consultation, please click to enter the decoration knowledge channel .
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