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:
May. 28, 1985
Filed:
Feb. 07, 1983
Applicant:
Inventor:
Donald B Carlin, Robbinsville, NJ (US);
Assignee:
RCA Corporation, Princeton, NJ (US);
Primary Examiner:
Int. Cl.
CPC ...
G11B / ; G11B / ; G02B / ;
U.S. Cl.
CPC ...
369112 ; 369122 ; 358347 ; 358294 ;
Abstract
An optical record and playback system is described for use in a multi-channel data processing system. An optical head which includes a laser diode array comprises a collection objective, an anamorphic beam expander and a focusing lens. The optical head collects the laser beams emitted by the diode array, expands the beam cross-section to form circular beams and focuses the beams to diffraction limited spots.