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. 01, 1988
Filed:
Dec. 22, 1986
Applicant:
Inventor:
Jasper S Chandler, Rochester, NY (US);
Assignee:
Eastman Kodak Company, Rochester, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
369 45 ; 369 44 ; 369112 ;
Abstract
The optical element assembly in a read head device is supported by a single four-member flexure structure that prevents the assembly from tilting while providing for tracking movement about an axis spaced from the optical element and for focusing movement along the direction of that axis. Preferably, the flexure structure is symmetrical and comprised of identical flexure members to optmize resonance characteristics and the center of mass of the optical element assembly is coincident with the pivot axis to isolate that element from inertial forces resulting from positioning movement of the read head device.