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:
Dec. 07, 1999
Filed:
Nov. 08, 1994
Applicant:
Inventors:
Stephen Kurtin, Sherman Oaks, CA (US);
Daniel E Fedele, Simi Valley, CA (US);
Saul Epstein, Sherman Oaks, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
359666 ;
Abstract
An actuating system for liquid-filled variable focus lenses of the type where the focus is adjusted by changing the spacing between a rigid lens and a distensible membrane. The actuating system involves a finger-operated positioner which drives an elongated flexible actuating member, i.e., a thin band, which is supported in a channel to prevent buckling. The band drives one or more actuating mechanisms which are located around the periphery of the lens and which provide a mechanical advantage so that the motion of the finger-operated positioner is in a comfortable range.