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. 03, 2009
Filed:
Sep. 15, 2005
Yasuhiro Nishimura, Nara, JP;
Toshiaki Ino, Kyoto, JP;
Mitsuru Tokuyama, Kyoto, JP;
Kiyofumi Morimoto, Nara, JP;
Takashi Kitagawa, Nara, JP;
Yasuhiro Nishimura, Nara, JP;
Toshiaki Ino, Kyoto, JP;
Mitsuru Tokuyama, Kyoto, JP;
Kiyofumi Morimoto, Nara, JP;
Takashi Kitagawa, Nara, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
In an optical discharge apparatus used in an electrographic image forming apparatus, by forming, on a light guiding member, a diffusing reflecting face for reflecting light from an LED lamp towards a photosensitive drum, and by supplementing the amount of light by altering the height of the diffusing reflecting face to the light emitting face and the width of the diffusing reflecting face in accordance with their distance from the light source, the light intensity distribution of the irradiating light that is irradiated onto the photosensitive drum is made uniform. An optical discharge apparatus may include a light guiding member arranged facing a photoreceptor; and a light source, a diffusing reflecting face for reflecting the light from the light source toward the photoreceptor is formed on the light guiding member, and a reflecting member is arranged on an upper face in the vicinity of an end portion of the light guiding member.