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. 16, 2010
Filed:
May. 30, 2008
Applicant:
Tarek Lule, Saint Egreve, FR;
Inventor:
Tarek Lule, Saint Egreve, FR;
Assignee:
STMicroelectronics (Grenoble) SAS, Grenoble, FR;
Primary Examiner:
Int. Cl.
CPC ...
G02B 7/02 (2006.01); G02B 15/14 (2006.01); G02B 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A lens unit includes a lens barrel for receiving at least one lens and a motor arranged to displace the lens barrel between various positions. Displacement of the lens barrel is proportional to an electrical signal applied to the motor. A first conductor is fixed to the lens barrel and is arranged to make electrical contact with a second conductor when the lens barrel is at an initial position. A processor is arranged to detect a change in the electrical contact, to determine an electrical signal at the time of the change and to generate an electrical signal corresponding to the desired displacement.