公开(公告)号：US20190187058A1

公开(公告)日：2019-06-20

申请号：US16098891

申请日：2017-02-23

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Yutaka HASEGAWA ,  Takayuki NAKAMURA ,  Yoshihiro ISHIGAMI ,  Fusanori KONDO

IPC: G01N21/64

CPC classification number: G01N21/6489 ,  G01N21/64 ,  G01N21/645 ,  G01N2201/127

Abstract: A reference body 1 includes: a support 10 provided with a first light passing portion 18, a second light passing portion 19, a first accommodating space 14, and a second accommodating space 15; a first fluorescent body 20 accommodated in the first accommodating space 14 and configured to emit first fluorescence in a second wavelength band when irradiated with first excitation light in a first wavelength band through the first light passing portion 18; a second fluorescent body 30 accommodated in the second accommodating space 15 and configured to emit second fluorescence in the second wavelength band when irradiated with second excitation light in the first wavelength band through the second light passing portion 19; and a light shielding portion 13 disposed between the first accommodating space 14 and the second accommodating space 15. In a case where a light amount of the first excitation light incident on the first light passing portion 18 and a light amount of the second excitation light incident on the second light passing portion 19 are equal to each other, a light amount of the first fluorescence emitted from the first light passing portion 18 and a light amount of the second fluorescence emitted from the second light passing portion 19 are different from each other.