Optical conversion assembly for objective camera lenses

Details Optical conversion assembly for objective camera lenses Optical conversion assembly for objective camera lenses

1979-12-26

1981-10-06

Corbin, John K.

350 53, G02B 2100

Patent

active

042931851

ABSTRACT:
An optical conversion attachment assembly for objective camera lenses is provided to convert a lens into a monocular optical device. A camera exchangeable lens can be detachably mounted on the barrel of an optical attachment having an erecting prism and an ocular system to vary the diopter power. The optical attachment further provides a device for automatically contacting and holding the diaphragm of the camera exchange lens at a maximum aperture opening.

REFERENCES:
patent: 3112570 (1963-12-01), De Vasconcellos
patent: 3535015 (1970-10-01), Yevick et al.
patent: 3574954 (1971-04-01), Schone et al.

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