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:
Dec. 16, 1986
Filed:
Jan. 07, 1985
Motonobu Matsuda, Kawachinagano, JP;
Toru Matsui, Osaka, JP;
Minolta Camera Kabushiki Kaisha, Osaka, JP;
Abstract
An image position detector includes a light receiving element for receiving an image of an object and for producing an electric signal generated by the image, and a signal processing circuit for processing the electric signal and for producing a position signal representing a position of the image on the light receiving element. The light receiving element is defined by a semiconductor device having an n-type substrate and p-type region formed in the substrate. A current generated between the n-type substrate and p-type region is in relation to the distance to the image from the p-type region. The signal processing circuit receives the generated current and determines the position of the image by the level of the generated current.