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:
Apr. 05, 1988

Filed:

Jan. 08, 1987
Applicant:
Inventors:

Masami Tanaka, Hirakata, JP;

Toshihide Dohi, Osaka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B / ; G03B / ; G03B / ;
U.S. Cl.
CPC ...
355-1 ; 355 51 ;
Abstract

Disclosed is a projection device for projecting an image of an original on an object plane to an image plane for use in copying machines, facsimiles, image readers and the like. The projection device comprises a roof mirror and an optical member including a plurality of lens elements linearly aligned in the longitudinal direction of the slit. Each of the lens elements has a refractive surface and a reflective surface in facing relation with each other. At least one of said surfaces is toric in order to form an erecting real image in the longitudinal direction of the slit and an inverted real image in the lateral direction thereof.


Find Patent Forward Citations

Tanaka, Masami. (1988). Slit exposure projection device (U.S. Patent No. 4736225). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4736225

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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