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:
Jan. 16, 1990
Filed:
Oct. 13, 1987
Katsumi Terada, Hirakata, JP;
Tetsuya Enomoto, Hirakata, JP;
Sanyo Electric Co., Ltd., Moriguchi, JP;
Abstract
A photodetector including a planar light guide of a polygonal shape in which organic phosphor is dispersed in a transparent support material, and a pair of photoelectric conversion elements such that light having a wavelength range for exciting the organic phosphor is introduced into the light guide and light generated from the organic phosphor upon the excitation is guided to the photoelectric conversion elements sensitive to a wavelength of the light generated from the organic phosphor. The light guide is formed, at opposite end portions of its one side, with a pair of light emitting surfaces and the photoelectric conversion elements are, respectively, provided at the light emitting end surfaces such that a light receiving surface of each of the photoelectric conversion elements confronts each of the light emitting end surfaces.