视距线图的实践研究

野外视距是微光电视的一个重要指标。本文叙述了影响视距的因素,以及计算及评价的方法,可作进一步控制质量之用。最后把公式化为“视距线图”经过实践进行修正,利用此图能快速地预计观察的视距,具有实用的价值。本文主要为 WD—1型微光电视而写的、对于其他类型微光电视稍加修改亦可应用。

A Study on the Line Graph of Observation Distance through Practice

The field observation distance is one of the important targets of low light level television camera.This paper discusses the factors affecting observation distance,the method of calculating and appraising observation distance which play an important role in the controling of quality.The calculating formulas are represented by line graphs which can be corrected by specific.practice With the help of this line graph, the observation distance can be measured rapidly and in advance.