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:
Jun. 09, 1987
Filed:
Jun. 25, 1985
Toshiyuki Iwabuchi, Tokyo, JP;
Shunji Sakai, Tokyo, JP;
Akira Uchiyama, Tokyo, JP;
Masaaki Sakamoto, Tokyo, JP;
Yuichi Masaki, Tokyo, JP;
Oki Electric Industry Co., Ltd., Tokyo, JP;
Abstract
An image reader is adapted to read an image represented on a document. The image reader comprises a reading unit, an LEDs driving circuit, and means for moving the reading unit and the document relatively. The above reading unit comprises an LEDs array arranged in a straight line as light sources, a rod lens array for guiding the light emitted from each LED of the LEDs array and focusing the light on the document, and a pair of photosensors being disposed in parallel and connected in parallel with respect to each other for converting a reflected light from the document to a photocurrent. And each LED of the LEDs array is turned on only one at a time sequentially by means of the LEDs driving circuit, then the reading of the document is effected by means of the photosensors.