OPTICAL MODULE - HAMAMATSU PHOTONICS KK

Title:

OPTICAL MODULE

Document Type and Number:

WIPO Patent Application WO/2019/009404

Kind Code:

A1

Abstract:

This optical module 1A is provided with: a mirror unit 2 including a movable mirror 22 and a fixed mirror 16; a beam splitter unit 3; a light entrance part 4; a first photodetector 6; a second light source 7; a second photodetector 8; a holding unit 130; a first mirror 51; a second mirror 52; and a third mirror 53. The holding unit 130 holds the first photodetector 6, the second photodetector 8, and the second light source 7 such that the first photodetector 6, the second photodetector 8, and the second light source 7 are arranged in that order facing the same side. The length of the optical path between the beam splitter unit 3 and the first photodetector 6 is shorter than the length of the optical path between the beam splitter unit 3 and the second photodetector 8, and shorter than the length of the optical path between the beam splitter unit 3 and the second light source 7.

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Inventors:

SUZUKI TOMOFUMI (JP)
KOTANI KYOSUKE (JP)
SUGIMOTO TATSUYA (JP)
KURAMOTO YUTAKA (JP)
SHIBAYAMA KATSUMI (JP)
HOSOKAWA NOBURO (JP)

Application Number:

PCT/JP2018/025648

Publication Date:

January 10, 2019

Filing Date:

July 06, 2018

Export Citation:

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Assignee:

HAMAMATSU PHOTONICS KK (JP)

International Classes:

G02B26/00; G01B9/02; G02B7/198; G01J3/45

Domestic Patent References:

WO2012164810A1	2012-12-06
WO2010122879A1	2010-10-28

Foreign References:

JP2005292033A	2005-10-20
JPH0324440A	1991-02-01
JPH07190712A	1995-07-28
JPH11183116A	1999-07-09
JPH04323502A	1992-11-12
US20060238768A1	2006-10-26
JP2012524295A	2012-10-11

Other References: