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. 28, 1992
Filed:
Jul. 26, 1990
Applicant:
Inventors:
Tatsuo Inabata, Kunitachi, JP;
Yasunobu Otsuka, Hachiouji, JP;
Assignee:
Olympus Optical Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
354407 ;
Abstract
The focus detecting device comprises a primary imaging optical system, a focus detecting optical system, an aperture stop, deflection prisms and a photoelectrc transducing member which are arranged on an optical axis in the order from the object side. This focus detecting device is capable of having a wide focus detecting field angle, a high imaging magnification and a high focus detecting accuracy in addition to a short total length and favorable functions to correct aberrations.
Inabata, Tatsuo. (1992). Focus detecting device (U.S. Patent No. 5084723). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5084723
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile