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:
May. 18, 1993
Filed:
Apr. 29, 1992
Applicant:
Inventors:
Hiromu Nakamura, Toyokawa, JP;
Akiyoshi Hamada, Toyokawa, JP;
Satoru Ono, Toyokawa, JP;
Masanori Murakami, Toyohashi, JP;
Toshio Naiki, Toyohashi, JP;
Kunihiko Omura, Toyokawa, JP;
Masahito Niikawa, Okazaki, JP;
Assignee:
Minolta Camera Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ; H01S / ; G03G / ;
U.S. Cl.
CPC ...
346108 ; 359641 ;
Abstract
An image recording apparatus wherein a laser diode which is disposed on a focal point of a micro Fresnel lens emits a laser beam and the laser beam is collimated by the Fresnel lens and scanned on a photosensitive drum by a polygonal mirror and an f.theta. optical system. A change in temperature of the laser diode does not result in such serious defocus as to cause practical problems.