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EYESYSSYSTEM2000角膜地形图仪是检查角膜外形的检查仪器。该机的摄像部分有一个照明系统，原照明灯是20W的环形日光灯。该灯价格昂贵，使用寿命短，只有几百小时，一般只能用几个月。一但环形日光灯损坏，整个仪器就不能使用。而国内和香港市场很少有20W的环形日光灯。我院曾
The EYESYSSYSTEM2000 corneal topographer is an examination instrument for examining the appearance of the cornea. The camera part of the aircraft has a lighting system, the original lighting is a 20W circular fluorescent lamp. The lamp is expensive and has a short life span of only a few hundred hours and can only be used for a few months. Once the ring fluorescent lamp is damaged, the entire instrument cannot be used. The domestic and Hong Kong markets rarely have 20W circular fluorescent lamps. Our institute had