公开(公告)号：US20240053258A1

公开(公告)日：2024-02-15

申请号：US18268785

申请日：2021-11-24

Applicant: OSAKA UNIVERSITY

Inventor： KATSUMASA FUJITA ,  Kazuki BANDO ,  Hiroyuki KAWAGOE

IPC: G01N21/31 ,  G02B3/00 ,  G02B7/02 ,  G02B27/10

CPC classification number: G01N21/31 ,  G02B3/0037 ,  G02B7/021 ,  G02B27/10 ,  G01N2201/08

Abstract: An optical module according to the present embodiment includes: a first lens array unit in which a plurality of first lenses configured to collect irradiating light are arranged; a second lens array unit which includes a plurality of second lenses and on which signal light from the first lenses is incident; and a plurality of beam splitters configured to reflect irradiating light to the first lenses and to transmit the signal light from the first lenses, wherein reflectance of the beam splitter on a nearest side in a travel direction of the irradiating light is set lowest and the more toward a far side in the travel direction, the higher the reflectance of the beam splitters.