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:
Nov. 18, 2003
Filed:
Dec. 22, 1998
Applicant:
Inventor:
Suguru Takishima, Tokyo, JP;
Assignee:
Pentax Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 7/00 ;
U.S. Cl.
CPC ...
G11B 7/00 ;
Abstract
An optical head includes (1) a stationary optical unit fixed to a body of the optical disk drive, (2) a rotary arm rotatable along a surface of the optical disk, which carries an object lens which converges the light on the optical disk, and (3) a light-introducing system which directs the light from the light source module to the rotary arm so that the light proceeds in the rotary arm to reach the object lens.