Surgery – Truss – Pad
Patent
1979-02-23
1980-04-08
Gonzales, John
Surgery
Truss
Pad
128 6, 352131, 354 79, A61B 104, G03B 2900
Patent
active
041969901
ABSTRACT:
An adapter is provided by which an image formed by the eyepiece of an optical viewing device such as an endoscope can be simultaneously viewed and photographed with a motion picture camera of the type having a reflex viewing system which has an entrance pupil that occupies only a portion of the camera objective taking lens system and which is offset with respect to the optical axis of the camera objective taking lens system. The adapter operates to align the center of the viewing device exit pupil at a predetermined point along a line connecting the centers of the camera objective lens system and viewing system entrance pupils to preclude vignetting of the camera viewing system entrance pupil.
REFERENCES:
patent: 3548808 (1970-12-01), Takahashi
patent: 3556085 (1971-01-01), Takahashi
patent: 3817635 (1974-06-01), Kawahara
patent: 3900021 (1975-08-01), Makepeace et al.
patent: 3994288 (1976-11-01), Stumpf
patent: 4013347 (1977-03-01), Nakamura
patent: 4036218 (1977-07-01), Yamashita et al.
patent: 4157216 (1979-06-01), Plummer
Stanford, B., "Theoretical First Principles of Endoscopic _Photograph," in J. of Photo. Sc., vol. 3, 1955, pp. 1-4.
Caufield Francis J.
Gonzales John
Polaroid Corporation
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