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. 15, 1977
Filed:
May. 16, 1975
Applicant:
Inventors:
Assignee:
Canon Kabushiki Kaisha, Tokyo, JA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
350187 ; 350255 ;
Abstract
The present invention relates to a device to adjust the position of optics lens systems which are movable relative to each other, and is characterized in that the device is equipped with a plural number of cam grooves variable relative to each other to adjust the position, frames to support the optical elements composing said optic lens system and springs forcing said frames to always be engaged in said adjusting cam grooves, whereby the forcing springs present forcing forces to compensate the components along the directions to move said adjusting cam grooves of the forces given to said plural number of said adjusting cam grooves.