Exchange lens assembly with data photographic system

Details Exchange lens assembly with data photographic system Exchange lens assembly with data photographic system

1975-10-02

1976-11-30

Hix, L. T.

354105, 354289, G03B 1724

Patent

active

039952894

ABSTRACT:
An exchange lens assembly integrally supports a rotatable data plate illuminated by exterior light incident upon the exchange lens bodytube through a condenser lens independent of the object focussing optical system. The iris value setting ring controlling light transmission through the object focussing optical systemm also controls light transmission through the data plate and its separate focussing optical lens for simultaneous photographing on the film of the field image and a selected data character.

REFERENCES:
patent: 3021769 (1962-02-01), Mann
patent: 3082424 (1963-03-01), Laird

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