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:
Oct. 13, 1998
Filed:
Jul. 10, 1997
Yong-jae Lee, Uiwang, KR;
Byeong-ho Park, Suwon, KR;
Samsung Electronics Co., Ltd., Kyungki-Do, KR;
Abstract
A magnetooptical recording/reproducing apparatus including a light source for emitting light, an object lens for condensing the light onto a magnetooptical disk, a polarization beam splitter in an optical path between the light source and the object lens, a first holographic device for diffracting an ordinary beam from the light passing through the polarization beam splitter after being reflected from the magnetooptical disk and allowing an extraordinary beam to pass therethrough unaltered, a second holographic device for splitting the ordinary and extraordinary beams passed through the first holographic device into a plurality of beams, and a photodetector for detecting the beams passing through the first and second holographic devices.