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. 07, 2006
Filed:
Apr. 09, 2001
Sergio Cova, Milan, IT;
Franco Zappa, Sesto San Giovanni, IT;
Massimo Ghioni, Monza, IT;
Robert Grub, Heubach, DE;
Eberhard Derndinger, Aalen, DE;
Thomas Hartmann, Uffing A. Staffelsee, DE;
Sergio Cova, Milan, IT;
Franco Zappa, Sesto San Giovanni, IT;
Massimo Ghioni, Monza, IT;
Robert Grub, Heubach, DE;
Eberhard Derndinger, Aalen, DE;
Thomas Hartmann, Uffing A. Staffelsee, DE;
Carl Zeiss Jena GmbH, Jena, DE;
Abstract
Photodetector device comprising a semiconductor substrate () of a first type of conductivity connected to a first electrode (). Said substrate comprises an active area () made up of different semiconductor regions of a second type of conductivity () insulated from each other and connected to respective second electrodes () so that each of them can be connected separately from the others to an appropriate bias voltage. By regulating the bias voltages applied to these regions the function of optic diaphragm of the device can be controlled. The device works without needing any form of optical insulation between the different regions of the active area and always uses the same single output electrode for the signal in all the different situations of diaphragm adjustment.