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:
Jan. 09, 2007
Filed:
Jul. 20, 2005
Haruhiko Hasegawa, Chiba, JP;
Hideki Kitajima, Chiba, JP;
Shigeyuki Masuda, Chiba, JP;
Tamio Nomura, Chiba, JP;
Takayuki Kosaka, Chiba, JP;
Haruhiko Hasegawa, Chiba, JP;
Hideki Kitajima, Chiba, JP;
Shigeyuki Masuda, Chiba, JP;
Tamio Nomura, Chiba, JP;
Takayuki Kosaka, Chiba, JP;
Seiko Instruments Inc., , JP;
Abstract
An optical unit is disclosed which is capable of being easily assembled, enabling its optical element to smoothly move, and preventing friction loss from being generated around its nut member. A lens driving apparatus is provided for moving an optical element holder, which supports an optical element having an optical axis and is movable along a guide member, in an extension direction of the optical axis, using a nut integrally provided at the holder, and a lead screw threadedly coupled to the nut to rotate forward and backward by a driving unit. In the lens driving apparatus, the forward or backward rotation of the motor is transmitted to the lead screw via a reduction gear train. The lead screw is installed to be inclinedly movable with respect to the extension direction of the optical axis about threaded coupling portions of a threaded section of the lead screw and the nut.