公开(公告)号：EP4123273A1

公开(公告)日：2023-01-25

申请号：EP21808410.1

申请日：2021-04-07

申请人： Hamamatsu Photonics K.K.

发明人： ITOH Katsuhisa ,  WATANABE Masaki ,  MATSUMOTO Satoshi ,  OHMIYA Takenori

IPC分类号： G01J5/06 ,  B23K26/00 ,  G01J5/60

摘要： A thermal radiation light detection device includes: a housing including a plurality of wall portions; a light entrance unit attached to a wall portion among the plurality of wall portions and configured to cause thermal radiation light to enter the housing; a light extraction unit disposed inside housing and configured to extract light of a first wavelength and light of a second wavelength from the thermal radiation light, the second wavelength being different from the first wavelength; a first light detection unit attached to a wall portion among the plurality of wall portions and configured to detect the light of the first wavelength; a second light detection unit attached to a wall portion among the plurality of wall portions and configured to detect the light of the second wavelength; and a first temperature detection unit attached to a wall portion among the plurality of wall portions, the wall portion to which the first temperature detection unit is attached being different from the wall portion to which the first light detection unit is attached.