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. 21, 2006
Filed:
Feb. 07, 2002
Masafumi Yokoyama, Tokyo, JP;
Masafumi Yokoyama, Tokyo, JP;
Citizen Watch Co., Ltd., Tokyo, JP;
Abstract
A light source for an optical apparatus comprises a light emitting device, a light receiving device () for detecting the amount of light of the light emitting device, and light emission control means () for controlling the amount of light of the light emitting device in accordance with the amount of light detected by the light receiving device, wherein the light receiving device is disposed on one side of the light emitting device to form an optical pair, and a plurality of such optical pairs are arranged on a substrate. The plurality of optical pairs, each consisting of the light receiving device and the light emitting device, are arranged in a substantially straight line on a first substrate (), and the light emission control means are arranged in a substantially straight line on a second substrate ().