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:
Oct. 19, 1982
Filed:
Jun. 04, 1981
Nippon Kogaku K.K., Tokyo, JP;
Abstract
This specification discloses an indicator device within the viewfinder of a camera for indicating a predetermined range substantially centrally of the viewfinder field frame. The indicator device comprises at least one electro-optical element for indicating the predetermined range, the optical characteristic of the electro-optical element being variable by an electrical signal information, an information circuit for putting out photographing information, and a control circuit for producing an electrical signal information corresponding to the output of the information circuit and varying the optical characteristic of the electro-optical element.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile