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:
Sep. 29, 2015
Filed:
Mar. 07, 2011
Katsuhide Ito, Hamamatsu, JP;
Katsuhide Ito, Hamamatsu, JP;
HAMAMATSU PHOTONICS K.K., Hamamatsu-shi, Shizuoka, JP;
Abstract
An image acquisition sectionacquires a multiplied image at a predetermined electron multiplication factor set in advance, and a luminance calculation sectioncalculates a luminance average value and a luminance variance average value corresponding to the image sectionin the multiplied image acquired by the luminance calculation section, and calculates a luminance average value and a luminance variance average value of pixels corresponding to the OPB sectionin the multiplied image. Then, by using the calculated luminance average value and luminance variance average value, a conversion factor calculation sectioncalculates a conversion factor of the multiplied image, and by using this conversion factor and a conversion factor at a reference electron multiplication factor, a multiplication factor calculation sectioncalculates an electron multiplication factor of the multiplied image.