The function and life of the projector lamp share knowledge

What is the function of the projector lamp and how long does it last? If the lamp of the projector needs to be replaced if it is broken, how should it be changed? How much can buy a projector bulb, it is said to be expensive. Below, the HD era network Xiaobian to help you solve the projector bulb related issues.



Projector bulb function

The function of the projector lamp is obvious, that is, as a light source, the non-light emitting slides are projected onto the curtain.

The bulb is the core component of the projector. The projector without a bulb is just as unusable as a printer without a cartridge. Moreover, the projector lamp is also a consumable product like an ink cartridge, has a certain service life, and certainly will encounter the purchase and replacement of the lamp bulb during the use period of the projector, so the user needs a certain amount of the projector lamp for your use. To understanding.




Projector bulb life

When it comes to the life of the projector lamp, we have to mention the type of lamp, use different types of bulbs, the service life is not the same. From the type of projector bulbs can be divided into metal halide bulbs and ultra-high pressure mercury bulbs, ultra-high pressure mercury bulbs, including UHP, UMPRD, UHE, SHP, and so on.

Metal halide bulbs have the advantage of being cheap, but the disadvantage is that the metal halide lamp generates warm light, requires more power to obtain the same luminosity as the UHP lamp, and has a short half-life. Generally, the luminance is reduced to about half of the original in about 1000 hours, and High heat, the projector cooling system requirements are also high, not suitable for long-time projection.

The full name of UHP bulbs is (Ultra High Performance), which belongs to ultra-high pressure mercury bulbs. Its longevity is generally nominal 6000 hours, the longest even nominal 12,000 hours, the brightness will not appear obvious after 4000 hours cumulative working time. attenuation.



UHE bulbs are also a kind of cold light source, and they are the ideal light sources widely used in mid-range projectors. And the price is moderate, the brightness is stable, and will not decay until 2000 hours.

Common projector bulb brands are Philips (Model: UHP), Epson (Model: UHE), Osram (OSRAM Model: VIP), Matsushita (Model: UHM), Japan Yu Shi Wang (USHIO Model: UMPRD/UMVRD/NSH) , Japanese Phoenix (PHOENIX model: SHP), United States singular (GE model: SHL) and so on.

The service life of the projector lamp described above is mostly theoretical value. Currently, the life of the projector lamp on the market is usually around 2000 hours. After a certain period of use, the brightness of the projector lamp will obviously drop, and the quality of the projection screen will also deteriorate. The image becomes unclear and the color performance is not as good as before. However, if you pay attention to maintenance, the life of the projector lamp can be extended.

Projector bulb life extension method

Develop good machine habits. For example, do not frequently switch on or off, do not use excessive brightness, turn off the power immediately after power off, or use the projector with improper shielding at the heat dissipation outlet, which may cause the life of the lamp to be reduced. At the time of purchase, choose the projector manufacturer whose brand name is loud and the warranty period is long (especially the warranty time of the bulb).

How much is the projector lamp

The projector lamp has a time of use. Once the lamp is broken, even if the projector is good, it cannot be used, and replacing a lamp is generally around 2,000 yuan.

How to replace projector lamp

1. Reminder of replacing the lamp The brightness adjustment on the projector has been adjusted to the maximum, the projected image is still very dark, or the "LAMP" indicator light is bright during use. It may be that the lamp is used for a long time and a new lamp needs to be replaced. You can use the "TIMER" button on the remote control to check the lamp usage time. The inspection method is:

When the projector is powered on, hold down the “TIMER” button for two seconds, and the hours the lamp has been used will be displayed below the projector. Under normal circumstances, the lamp can be used for 2000 hours. After that, the projected image will not meet the brightness requirement and replacement of the lamp should be considered.

2, replace the bulb

There are several kinds of light bulbs, one is the original original package of light bulbs, one is the use of light bulbs, the other is to replace the wick, but the lamp cup is intact. The first two replacements only need to open the back of the bulb position, pull the bulb out directly on the line, the latter requires a professional to replace the wick. However, the original light bulb is the most expensive and is the next best place to use. To replace the wick is the cheapest, the effect is basically not much different. You need to carefully consider which one you choose.

Precautions when replacing a lamp: First, select the lamp according to the type of projector required. Second, because there is high pressure inside the machine, it must be replaced when the power is unplugged to avoid electric shock. Third, because the projector generates a lot of heat when it is used, the replacement of the bulb must be done one hour after turning off the power to avoid burns.

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