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. 22, 1982
Filed:
Jan. 02, 1981
Bruce K Johnson, Andover, MA (US);
Kenneth J Launie, Stoneham, MA (US);
Polaroid Corporation, Cambridge, MA (US);
Abstract
A camera, including an automatic lens focusing system of the type wherein a disc holding a plurality of different lens elements is accelerated by an arm of a torsion spring to effect disc rotation for sequentially presenting the lens elements at a focusing system, is provided with an arrangement for easily adjusting the amount of energy stored in the spring prior to release to thereby change the resultant disc rotational velocity. The adjustment is made in connection with a method of calibrating disc rotational velocity.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile