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:
Sep. 12, 1978
Filed:
Apr. 19, 1977
Applicant:
Inventor:
Masaki Matsubara, Hachiouji, JP;
Assignee:
Olympus Optical Co., Ltd., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
350186 ;
Abstract
A compact zoom lens system with high zooming ratio for which the range of focal length is 16 to 192, i.e., the zooming ratio is 1:12, and aperture ratio is large and which comprises a focusing lens group having positive power, a variator lens group having negative power, a compensator lens group having negative power, an erector lens group having positive power and a master lens group.