US 11,656,374 B2
Photon counting device and photon counting method
Tadashi Maruno, Hamamatsu (JP); Eiji Toda, Hamamatsu (JP); Mao Nakajima, Hamamatsu (JP); Teruo Takahashi, Hamamatsu (JP); and Takafumi Higuchi, Hamamatsu (JP)
Assigned to HAMAMATSU PHOTONICS K.K., Hamamatsu (JP)
Filed by HAMAMATSU PHOTONICS K.K., Hamamatsu (JP)
Filed on Oct. 15, 2021, as Appl. No. 17/502,424.
Application 17/502,424 is a continuation of application No. 16/764,066, granted, now 11,204,432, previously published as PCT/JP2018/023144, filed on Jun. 18, 2018.
Claims priority of application No. 2017-225861 (JP), filed on Nov. 24, 2017.
Prior Publication US 2022/0035056 A1, Feb. 3, 2022
Int. Cl. G01T 1/24 (2006.01); H04N 5/374 (2011.01); H04N 5/3745 (2011.01); H01L 27/146 (2006.01); G01J 1/02 (2006.01); H04N 5/376 (2011.01); H04N 5/363 (2011.01); H04N 5/378 (2011.01); G01T 1/208 (2006.01)
CPC G01T 1/247 (2013.01) [H04N 5/363 (2013.01); H04N 5/376 (2013.01); H04N 5/378 (2013.01); H04N 5/3742 (2013.01); H04N 5/37455 (2013.01); H04N 5/37457 (2013.01); G01T 1/208 (2013.01)] 20 Claims
OG exemplary drawing
 
19. A computer comprising:
a data processor configured to convert a digital value of each of the plurality of pixels output from an A/D converter of a CMOS image sensor to a number of photons by referring to reference data, for each of the plurality of pixels,
wherein the reference data is threshold value data for distinguishing between adjacent numbers of photons.