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. 24, 1992
Filed:
May. 17, 1990
Martinus P Bierhoff, Eindhoven, NL;
Job F Van Mil, Eindhoven, NL;
U.S. Philips Corp., New York, NY (US);
Abstract
A radiation-sensitive semiconductor device, more particularly but not exclusively a photo detection arrangement for determining the postion of a luminous spot, including a semiconductor body having at least two radiation-sensitive diodes and amplifying circuitry for the photocurrent generated by the luminous spot. The amplifying circuitry includes transistors arranged outside the area of the semiconductor body occupied by the radiation-sensitive diodes. Each transistor is assigned to and connected to a radiation-sensitive diode, while at least the active parts of the transistors are arranged more closely to each other in the semiconductor body than the diodes to which they are assigned. A focusing arrangement may advantageously incorporate such as semiconductor photodetector.