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:
Oct. 17, 1989
Filed:
Sep. 25, 1987
Yoshiro Nishimoto, Kobe, JP;
Yasuji Yoneda, Kobe, JP;
Shinichi Imaoka, Kobe, JP;
Yasuhide Nakai, Kobe, JP;
Akimitsu Nakaue, Kobe, JP;
Yoshihiko Onishi, Kobe, JP;
Hiroyuki Tachibana, Kobe, JP;
Takayoshi Inoue, Kobe, JP;
Takuya Kusaka, Urawa, JP;
Hiroyuki Takamatsu, Kobe, JP;
Shigeki Tojyo, Osaka, JP;
Hiroshi Kajikawa, Kobe, JP;
Kozo Nishimura, Kobe, JP;
Kabushiki Kaisha Kobe Seiko Sho, Kobe, JP;
Abstract
An apparatus for detecting position/variance of input light is disclosed which includes a photoelectric conversion device receiving input light constituted of a first resistive layer formed of a first photoelectric conversion material and a second resistive layer formed of a second photoelectric conversion material connected with the first resistive layer through a depletion layer or directly, wherein the first resistive layer is provided with uniform resistivity throughout its surface so that a linear output proportional to the average of the distances between one end of the photoelectric conversion device and positions of the input light is detected and the second resistive layer is provided with resistivity dependent upon the distance from its one end so that a quandratic ouput proportional to the average of the squares of the distances between one end of the photoelectric conversion device and positions of the input light is detected.