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灯泡 目前投影机普遍采用的灯泡有金属卤素灯泡、UHE灯泡和UHP灯泡三种。金属卤素灯泡的优点是价格便宜,缺点是半衰期短,一般使用1000小时左右亮度就会降低到原先的一半。由于发热高,所以金属卤素灯泡对投影机的散热系统要求非常高,不宜做长时间(4小时以上)投影使用。UHE灯泡的优点是价格适中,在使用2000小时以前亮度几乎不衰减,
Bulbs Currently projector commonly used bulbs are metal halogen bulbs, UHE bulbs and UHP bulbs three. The advantage of metal halide bulbs is the price is cheap, the disadvantage is the short half-life, the general use of about 1000 hours brightness will be reduced to half of the original. Due to high fever, metal halide lamps on the projector cooling system requirements are very high, not for a long time (4 hours) projection use. The advantages of UHE bulbs are affordable, almost no attenuation of brightness before 2000 hours of use,