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:
Jun. 06, 1995
Filed:
Jun. 17, 1994
Konica Corporation, Tokyo, JP;
Abstract
An magneto-optical head that detects information recorded magneto-optically in accordance with changes in polarization conditions of light reflected from a magneto-optical recording medium on which convergent light is projected, includes a birefringent polarizer having a plane of incidence on which a polarization-separation coating is formed and a plane of emergence that is substantially in parallel with the plane of incidence. The birefringent polarizer composed of at least two crystallines is arranged to be inclined to an optical path along which the reflected light advances toward a photo-detector as a convergent light. A chief ray of reflected light from a recording medium enters the plane of incidence of the birefringent polarizer with an incident angle between 55.degree. and 70.degree..
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile