Chinese Standard: GB/T 22149-2008

Overhead projectors—Methods for measuring performance characteristics

MOD  ISO 9767:1990

机械工业电影和电教机械标准化技术委员会

本标准规定了透射式投影器的有效光通量、银幕照度均匀度、画面畸变、最大有效投影仰角和投影器台面温升的测定方法。
本标准适用于JB/T 8259.1中所有类型的透射式投影器。不适用于反射式投影器和其他特殊用途的投影器。

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