Invention Grant
- Patent Title: Fabry-Perot interference filter
-
Application No.: US16322170Application Date: 2017-07-05
-
Publication No.: US10724902B2Publication Date: 2020-07-28
- Inventor: Takashi Kasahara , Katsumi Shibayama , Masaki Hirose , Toshimitsu Kawai , Hiroki Oyama , Yumi Kuramoto
- Applicant: HAMAMATSU PHOTONICS K.K.
- Applicant Address: JP Hamamatsu-shi, Shizuoka
- Assignee: HAMAMATSU PHOTONICS K.K.
- Current Assignee: HAMAMATSU PHOTONICS K.K.
- Current Assignee Address: JP Hamamatsu-shi, Shizuoka
- Agency: Faegre Drinker Biddle & Reath LLP
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@7795486d
- International Application: PCT/JP2017/024645 WO 20170705
- International Announcement: WO2018/037724 WO 20180301
- Main IPC: G01J3/26
- IPC: G01J3/26 ; B81B3/00 ; G02B26/00 ; G02B5/28 ; G02B26/08

Abstract:
A Fabry-Perot interference filter includes a substrate that has a first surface, a first laminate that has a first mirror portion disposed on the first surface, a second laminate that has a second mirror portion facing the first mirror portion via a gap on a side opposite to the substrate with respect to the first mirror portion, and an intermediate layer that defines the gap between the first laminate and the second laminate. An outer surface of the intermediate layer is curved such that an edge portion of the intermediate layer on the substrate side is positioned on an outer side of an edge portion of the intermediate layer on the side opposite to the substrate in a direction parallel to the first surface. The second laminate covers the outer surface of the intermediate layer.
Public/Granted literature
- US20190186994A1 FABRY-PEROT INTERFERENCE FILTER Public/Granted day:2019-06-20
Information query