本文从影响投影机灯泡寿命的若干因素入手,提出了能有效延长灯泡寿命的理论依据和方法措施,从而降低使用投影机的成本,使之在教学工作中发挥更大的作用。 This article starts with several factors that affect the lamp life of the projector, and puts forward the theoretical basis and method and measures to prolong the lamp life effectively, so as to reduce the cost of using the projector and make it play a greater role in the teaching work.