The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 28, 1977
Filed:
Jun. 15, 1976
Applicant:
Inventors:
Tohru Karikawa, Tokyo, JA;
Koichi Kobayashi, Tokyo, JA;
Assignee:
Asahi Kogaku Kogyo Kabushiki Kaisha, Tokyo, JA;
Primary Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
354155 ; 354152 ; 354225 ;
Abstract
A miniature single lens reflex camera using cassette film is disclosed. The camera can be operated with inexpensive lenses not having large back focus, due to the addition of a glass block between the shutter and the film plane. The finder optical system is short in actual length due to the combination of a trapezoidal prism, a right angle prism, and an equilateral prism.