公开(公告)号：US20200018832A1

公开(公告)日：2020-01-16

申请号：US16584093

申请日：2019-09-26

Applicant: DENSO CORPORATION

Inventor： Kenta Azuma ,  Noriyuki Ozaki ,  Shinji Kashiwada ,  Teiyu Kimura ,  Isamu Takai ,  Hiroyuki Matsubara ,  Mitsuhiko Ohta ,  Shigeyoshi Hiratsuka

IPC: G01S7/486 ,  G01S17/10 ,  H01L31/107

Abstract: A photodetector includes plural detectors. Each of the plural detectors has a single photon avalanche diode (hereinafter referred to as SPAD) which responds to incidence of a photon. The plural detectors include at least a first detector and a second detector. The SPAD has a recovery time period until the SPAD reaches a next photon-responsive state, in response to the SPAD responding to the incidence of the photon. The recovery time period of the SPAD in the first detector is different from the recovery time period of the SPAD in the second detector.

公开(公告)号：US11422241B2

公开(公告)日：2022-08-23

申请号：US16584093

申请日：2019-09-26

Applicant: DENSO CORPORATION

Inventor： Kenta Azuma ,  Noriyuki Ozaki ,  Shinji Kashiwada ,  Teiyu Kimura ,  Isamu Takai ,  Hiroyuki Matsubara ,  Mitsuhiko Ohta ,  Shigeyoshi Hiratsuka

IPC: H01L31/107 ,  G01S7/4863 ,  G01S17/10

Abstract: A photodetector includes plural detectors. Each of the plural detectors has a single photon avalanche diode (hereinafter referred to as SPAD) which responds to incidence of a photon. The plural detectors include at least a first detector and a second detector. The SPAD has a recovery time period until the SPAD reaches a next photon-responsive state, in response to the SPAD responding to the incidence of the photon. The recovery time period of the SPAD in the first detector is different from the recovery time period of the SPAD in the second detector.

公开(公告)号：US11411130B2

公开(公告)日：2022-08-09

申请号：US16598295

申请日：2019-10-10

Applicant: DENSO CORPORATION

Inventor： Kenta Azuma ,  Noriyuki Ozaki ,  Shinji Kashiwada ,  Teiyu Kimura ,  Isamu Takai ,  Hiroyuki Matsubara ,  Mitsuhiko Ohta ,  Shigeyoshi Hiratsuka

IPC: H01L31/107 ,  G01J1/44 ,  H01L27/144 ,  H01L31/02 ,  G01T1/24 ,  G01T1/208 ,  G01T1/20

Abstract: A photodetector includes: a photoreceptor provided with a SPAD that is configured to respond to incidence of a photon, and as the response of the SPAD, configured to output a pulse signal; and a pulse rate control circuit configured to control sensitivity of the photoreceptor to have a pulse rate as the number of pulse signals outputted per unit time from the photoreceptor to be a set value set in advance, (i) in a set range including the set value, (ii) in a set range of the set value or more, or (iii) in a set range of the set value or less.