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:
Jun. 15, 1982
Filed:
May. 15, 1980
Applicant:
Inventors:
Hideyo Nozawa, Ohmiya, JP;
Tsutomu Mitsuishi, Kawasaki, JP;
Assignee:
Nippon Kogaku K.K., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
350430 ;
Abstract
A zoom lens capable of macro-photography includes first and second movable lenses coupled to first and second cam rings, respectively. The first and second cam rings are operatively associated so that they rotate as a unit about the optical axis of the lens to axially move the first and second lenses for zooming, but are capable of relative axial movement with respect to one another at any point within the zooming range of the lens to move one lens relative to the other lens for macro-photography.