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:
Feb. 22, 2005
Filed:
Jul. 05, 2001
Naoki Inamoto, Kikuchi-gun, JP;
Naoki Inamoto, Kikuchi-gun, JP;
Otsuka Electronics Co., Ltd., Hirakata, JP;
Abstract
A light spectrum detecting apparatus according to the present invention comprises a photodetector () and a light transmitting plate () covering a light receiving surface () of the photodetector (), and in the apparatus, a front surface S of the light transmitting plateis inclined and, among incidents lights, any light once reflected by a back surface T of the light transmitting plate () travels thereafter, with being totally reflected by the front surface S and the back surface T of the light transmitting plate (), to a side surfaceof the light transmitting plate (). Any stray light can be prevented from entering the photodetector ().