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:
Jan. 06, 1987
Filed:
Apr. 17, 1985
Applicant:
Inventors:
Shin-ichi Mihara, Hachiouji, JP;
Toshihiro Imai, Hachiouji, JP;
Kazuo Ikari, Hachiouji, JP;
Toru Fujii, Hino, JP;
Assignee:
Olympus Optical Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358228 ;
Abstract
A light-measuring system for single-lens reflex cameras wherein the light coming from an object to be photographed as reflected at the image-pickup surface is reflected once again by a partially reflecting means disposed in the photographing light path, so that this latter reflection light is measured on its own optical axis, to enable to perform the real-time measurement of light with a high precision.