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本文介绍一种新型自准直反射镜,经使用比现有的自准直仪反射镜或加取景器找自准直象更为方便实用。新型自准直反射镜的光学系统如图1所示。该反射镜是利用哈尔滨量具刃具厂生产的平面度检查仪的旧反射镜底座,将原来反射镜4的玻璃重新镀上反射膜,在其中心留一φ3.5m m的圆孔不镀膜。为了与原反射镜底座匹配,反射镜后用一块f′=65mm的正透镜5,放大镜6采用f′=25mm的小平凸透镜。从反射镜中心圆孔透过来的自准直仪的平行光束,
This article describes a new type of self-collimating mirror that is more convenient and practical to use than existing self-collimator mirrors or finders to find self-collimating images. The new self-collimating mirror optical system shown in Figure 1. The mirror is the use of Harbin Measuring Tool Factory flatness tester of the old mirror base, the original mirror 4 glass re-coated with reflective film, leaving a φ3.5m m in its center hole is not coated. In order to match the base of the original mirror, a positive f ’= 65mm lens 5 is used behind the mirror, and the small mirror 6 f’ = 25mm is used as the magnifying glass 6. From the mirror center hole through the self-collimator parallel beam,