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:
Mar. 13, 1990
Filed:
Aug. 08, 1988
Hiromi Ishikawa, Kanagawa, JP;
Masaru Noguchi, Kanagawa, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
A light deflector such as a polygon mirror deflects a synchronizing light beam and a scanning light beam which are applied thereto at different angles. A first focusing optical system is disposed between the light deflector and an object to be scanned by the scanning light beam for focusing the scanning light beam on the object. A synchronizing signal generator including a reference grating plate generates a synchronizing signal from the synchronizing light beam applied to the reference grating plate. A second focusing optical system is disposed between the first focusing optical system and the reference grating plate for focusing the synchronizing light beam applied through the first focusing optical system on the reference grating plate. Image information is read from the object or read on the object based on the synchronizing signal.