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:
Nov. 03, 1987
Filed:
Sep. 08, 1986
Applicant:
Inventors:
Assignee:
Nippon Kogaku K. K., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
354219 ;
Abstract
A video finder in a single-lens reflex camera comprises a finder eyepiece, a penta roof prism disposed between the eyepiece and a focusing screen, a beam splitter disposed between the penta roof prism and the finder eyepiece, an image-forming optical system for forming a light image from the split beam and an image pickup device for forming a video signal corresponding to the light image formed by the image-forming optical system.