Adapter for coupling a camera with a viewing device

Details Adapter for coupling a camera with a viewing device Adapter for coupling a camera with a viewing device

1980-02-04

1981-04-28

Gonzales, John

354 79, G03B 2900

Patent

active

042641675

ABSTRACT:
An adapter by which a self-contained camera having an objective lens can be optically and mechanically coupled with a well-known endoscope of the type having an especially designed eyepiece adapted to be changed between a viewing mode and a photographic mode, in which the eyepiece operates as an objective lens for forming an object image in a plane located a predetermined distance behind the eyepiece. The adapter of the invention is structured to mechanically and optically couple the self-contained camera to the endoscope and to change the endoscope eyepiece from its viewing mode to its photographic mode. Provided in the adapter is a negative lens which optically nullifies the objective lens function of the endoscope eyepiece of collimating convergent image forming rays therefrom so that the self-contained camera can be used to photograph the image formed by the endoscope with the camera objective lens focused at infinity.

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Stanford, B., "Principles of Endoscopic Photography", J. of Photo. Sc., vol. 3, 1955, pp. 1-4.

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