Viewfinder optical system

Details Viewfinder optical system Viewfinder optical system

1989-04-21

1992-07-14

Arnold, Bruce Y.

Optical: systems and elements

Prism

With reflecting surface

359403, 354155, 354224, G02B 504, G03B 1308

Patent

active

051308550

ABSTRACT:
A viewfinder optical system including an objective lens for forming an image of a subject, a rooflike reflecting portion for reflecting an incident bundle of rays so as to deflect the incident bundle of rays through 90.degree., which is provided between the objective lens and the image of the subject formed by the objective lens, a double reflecting portion for twice reflecting a bundle of rays reflected by the rooflike reflecting portion so as to deflect the bundle of rays through 270.degree. and an eyepiece for enlarging the image of the subject.

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Kyocera T-Scope "First Look"-Japanese Document, pp. 31-32, 2-page English translation (4 pages total), dated 1988.
Kyocera T-Scope (Japanese), (4 pages), dated 1988.
Kyocera T-Scope (Japanese) (4 pages), dated Jun. 1988.

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