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. 28, 2006
Filed:
Dec. 02, 2004
Applicant:
Takamasa Sakamoto, Osaka, JP;
Inventor:
Takamasa Sakamoto, Osaka, JP;
Assignees:
Asia Optical Co., Inc., Taichung, TW;
Optek Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 15/14 (2006.01); G03B 17/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A lens barrel is retractable in electronic equipment having an image-generating device, such as a CCD. During photographing, the lens barrel relocates a first lens group and a second lens group to a predetermined position in an optical axis to zoom the image of an object. During collapsing, the first lens group and the second lens group adjacent to the object side are transferred to a side of a CCD which is away from the optical axis and a focus driving mechanism drives the third lens group along the optical axis. The focus driving mechanism is disposed inside the lens barrel.