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:
Jul. 19, 2005
Filed:
Nov. 22, 1999
Hirokazu Ichikawa, Ebina, JP;
Hidekazu Imai, Ebina, JP;
Yoshiya Imoto, Ebina, JP;
Michio Kikuchi, Ebina, JP;
Hirokazu Ichikawa, Ebina, JP;
Hidekazu Imai, Ebina, JP;
Yoshiya Imoto, Ebina, JP;
Michio Kikuchi, Ebina, JP;
Fuji Xerox Co., Ltd., Tokyo, JP;
Abstract
The image reading device of the present invention reads images by using a visible light and an invisible light that are generated by a single light source. The fluorescent lamp is provided with a pair of internal electrodes and a pair of external electrodes. It generates a visible light with a higher intensity than an infrared light when switching a feeder circuit on to generate a discharge between the external electrodes. On the other hand, it generates an infrared light with a higher intensity than a visible light when switching another feeder circuit on to generate a discharge between the internal electrodes. Therefore, the fluorescent lamp has a reading mode using the visible light, and a reading mode using the infrared light. And, a lamp controller selectively switches the emission mode of the fluorescent lamp.