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:
Mar. 03, 1998
Filed:
Oct. 23, 1995
Applicant:
Inventor:
Jun Hirakawa, Tokyo, JP;
Assignee:
Asahi Kogaku Kogyo Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
359691 ; 359708 ;
Abstract
A super wide angle zoom lens includes a first lens group of negative power and a rear lens group of positive power, in this order from the object side, so that zooming may be carried out by relatively moving the first lens group and the rear lens group. The zoom lens has, at a wide angle extremity thereof, a half angle of view of more than 60.degree., which constitutes a half angle of view of a fisheye lens.
Hirakawa, Jun. (1998). Super wide angle zoom lens (U.S. Patent No. 5724193). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5724193
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile