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:
Dec. 17, 1996
Filed:
Jul. 28, 1995
Minoru Isobe, Tokyo, JP;
Yukio Nakamura, Tokyo, JP;
Oki Electric Industry Co., Ltd., Tokyo, JP;
Abstract
The present invention comprises an optical write/read device including a light emitting/receiving portion having light emitting elements and light receiving elements which are arranged in parallel with one another, and a simple optical system. In the optical system, light emitted from the light emitting element is lead to an information recording medium, and light reflected on the information recording medium among lights emitted from the light emitting elements is lead to the light receiving element. Accordingly, the light emitting element can be used as a recording light source and a reading light source, and further the light receiving elements arranged in parallel with the light emitting elements can be used as an optical detector. The information recording medium employed by the optical write/read device includes a column of positional aligning marks.