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Year:
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Issue:
zuo deng leng guang mo de zhi bei
Pages:
82
-
86
Year:
1974
Issue:
1
Journal:
Journal of Fudan University(Natural Science)
Keyword:
硫化锌
;
镀铝
;
温度
;
红外辐射
;
冷光膜
;
可见光
;
反射罩
;
电影放映
;
电光源
;
反射灯
;
Abstract:
<正> 一九七二年,一种新型电影放映光源——铟灯在电光源实验室试制成功。这种灯大大提高了亮度,但其红外辐射也大为增加。如果仍用一般的镀铝反射灯罩,则放映机片门温度在十分钟内就可升高到200℃以上,以致使胶片损坏。为了解决这一问题,必须在反射罩上镀一种能反射可见光而透过红外辐射的“冷光膜”。经过几个月的试验,已获初步成功。
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