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. 06, 2015
Filed:
Sep. 28, 2011
Kenichi Sato, Hamamatsu, JP;
Shogo Kamakura, Hamamatsu, JP;
Shigeyuki Nakamura, Hamamatsu, JP;
Tsuyoshi Ohta, Hamamatsu, JP;
Michito Hirayanagi, Hamamatsu, JP;
Hiroki Suzuki, Hamamatsu, JP;
Shunsuke Adachi, Hamamatsu, JP;
Kenichi Sato, Hamamatsu, JP;
Shogo Kamakura, Hamamatsu, JP;
Shigeyuki Nakamura, Hamamatsu, JP;
Tsuyoshi Ohta, Hamamatsu, JP;
Michito Hirayanagi, Hamamatsu, JP;
Hiroki Suzuki, Hamamatsu, JP;
Shunsuke Adachi, Hamamatsu, JP;
HAMAMATSU PHOTONICS K.K., Hamamatsu-shi, Shizuoka, JP;
Abstract
A reverse bias voltage is applied to a photodiode array provided with a plurality of avalanche photodiodes operated in Geiger mode and with quenching resistors connected in series to the respective avalanche photodiodes. Electric current is measured with change of the reverse bias voltage applied, and the reverse bias voltage at an inflection point in change of electric current measured is determined as a reference voltage. A voltage obtained by adding a predetermined value to the determined reference voltage is determined as a recommended operating voltage.