G - Physics – 02 – B
Patent
G - Physics
02
B
88/16, 88/69
G02B 21/18 (2006.01)
Patent
CA 1270131
METHOD AND APPARATUS FOR SIMULTANEOUSLY OBSERVING A TRANSPARENT OBJECT FROM TWO DIRECTIONS ABSTRACT OF THE DISCLOSURE In order to simultaneously observe a transparent object from two directions, first and second beam paths containing first and second images from the two directions are separated using a prism to reflect the first beam path yet pass the second beam path. The length of the second beam path is caused to be different from that of the first beam path. Then the first and second beam paths are combined so that the first and second images may be viewed simultaneously. The different beam path lengths result in the first and second images being formed at the same position. As a result, the images carried by the first and second beam paths, both passing through a single objective lens, may be viewed simultaneously at a single location.
489736
Ito Ryozo
Kakii Toshiaki
Kawada Osamu
Matsuno Koichiro
Nakamura Eiji
Nippon Kogaku K. K.
Nippon Telegraph & Telephone Corporation
Riches Mckenzie & Herbert Llp
Sumitomo Electric Industries Ltd.
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