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.

Date of Patent:
Jun. 05, 1990

Filed:

Aug. 08, 1988
Applicant:
Inventors:

Ichiro Miyagawa, Kanagawa, JP;

Noboru Arai, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
350-68 ; 350319 ; 3502 / ;
Abstract

A light beam scanning device for scanning an object to read image information therefrom or record image information thereon includes a reflecting-mirror light deflector for reflecting and deflecting a light beam in a plane, and a scanning lens for passing the light beam deflected by the light deflector toward the object. An optical element such as a glass plate has an entrance surface for allowing the light beam to pass therethrough to the light deflector, and directs the light beam from the light deflector therethrough to the scanning lens. The entrance surface is inclined at a predetermined angle to a direction normal to an optical axis of the scanning lens.


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