发明授权
US3586429A Method and apparatus for optically recording dual images 失效
用于光学记录双图像的方法和装置

Method and apparatus for optically recording dual images
摘要:
A method and apparatus for optically recording dual images of the same body wherein a first image is reflected directly into a camera through a light discriminating filter, and a second image of the body is reflected into the camera through an optical path defined by an arrangement of reflective surfaces having a second light discriminating filter in the path such that the two images may be discriminated after recording.
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