Stereoscopic image apparatus

Details Stereoscopic image apparatus Stereoscopic image apparatus

1997-12-05

1999-11-30

Gray, David M.

Photography

Body examination photography

Eye photography

396323, 396324, 348 78, G03B 2900

Patent

active

059957590

ABSTRACT:
An eye imagining apparatus where, in the case of a stereoscopic image, a beam from a left stop of a stereoscope stop and a beam from a right stop of the stereoscopic stop form an eye fundus image on a surface of a cylindrical lens array. These beams also reach adjacent image pickup device elements of an image pickup device of an image pickup unit, respectively. With the cylindrical lens array having the pitch width corresponding to two image pickup device elements, the focal length is determined so that an image of the stereoscope stop is focused in the pitch width, and the imaging plane of the cylindrical lens array is focused on the image pickup device by relay lens apparatus. On the other hand, with a monocular image, a single stop plate is put in the optical path instead of the stereoscope stop and the cylindrical lens array is retracted from the optical path, whereby the image is photographed with a higher horizontal image definition.

REFERENCES:
patent: 3731606 (1973-05-01), Geoffray
patent: 4248505 (1981-02-01), Muchel et al.
patent: 4488795 (1984-12-01), Winnek
patent: 4668063 (1987-05-01), Street
patent: 4717952 (1988-01-01), Kohayakawa
patent: 4867554 (1989-09-01), Matsumura
patent: 5018851 (1991-05-01), Matsumura
patent: 5713047 (1998-01-01), Kohayakawa

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