Title:
LIGHT DETECTION DEVICE AND APERTURE SECTION
Document Type and Number:
WIPO Patent Application WO/2024/034202
Kind Code:
A1
Abstract:
This light detection device comprises: a package having an opening; a light transmission section that blocks the opening and has a light-emitting surface located inside the package; a Fabry-Perot interference filter that includes a pair of mirror sections, the distance between the mirror sections being variable; a light detector; and a first aperture section having a first aperture located, inside the package, between the light-emission surface and the Fabry-Perot interference filter. The first aperture section includes a first surrounding part that surrounds the first aperture. The Fabry-Perot interference filter-side surface of the first surrounding part is separated from the Fabry-Perot interference filter, and absorbs light.
Inventors:
OYAMA HIROKI (JP)
SHIBAYAMA KATSUMI (JP)
YOKINO TAKAFUMI (JP)
KASAHARA TAKASHI (JP)
KURAMOTO YUMI (JP)
SHIBAYAMA KATSUMI (JP)
YOKINO TAKAFUMI (JP)
KASAHARA TAKASHI (JP)
KURAMOTO YUMI (JP)
Application Number:
PCT/JP2023/016972
Publication Date:
February 15, 2024
Filing Date:
April 28, 2023
Export Citation:
Assignee:
HAMAMATSU PHOTONICS KK (JP)
International Classes:
G01J3/02; G01J3/26
Domestic Patent References:
| WO2018008215A1 | 2018-01-11 |
Foreign References:
| JP2020071118A | 2020-05-07 | |||
| JP2007101513A | 2007-04-19 | |||
| JP2002005741A | 2002-01-09 | |||
| JP2013029327A | 2013-02-07 |
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
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