Real image mode finder optical system having an objective lens i

Details Real image mode finder optical system having an objective lens i Real image mode finder optical system having an objective lens i

1994-04-13

1996-02-13

Nelms, David C.

Optical: systems and elements

Prism

With reflecting surface

354224, 359726, 359835, G03B 1308

Patent

active

054915287

ABSTRACT:
A real image mode finder optical system includes an objective lens, an image inverting optical member for erecting an object image formed by the objective lens, and an eyepiece for observing the object image. The objective lens has a reflecting surface and satisfies a condition:

REFERENCES:
patent: 5034763 (1991-07-01), Inabata
patent: 5144349 (1992-09-01), Kato et al.
patent: 5206675 (1993-04-01), Miyauchi et al.
patent: 5231534 (1993-07-01), Kato

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