公开(公告)号：US20220409034A1

公开(公告)日：2022-12-29

申请号：US17929312

申请日：2022-09-02

Applicant: FUJIFILM CORPORATION

Inventor： Kosuke TAKASAKI ,  Yasuhiro SEKIZAWA

IPC: A61B1/12 ,  A61B1/00 ,  B08B3/02 ,  B08B5/02

Abstract: An optical device includes an optical window, a gas/liquid supply nozzle that includes an opening from which gas and liquid are jetted and selectively jets the gas and the liquid to wash an effective region of the optical window, a disposition surface on which the optical window and the nozzle are disposed, and a first hydrophobic portion that has a hydrophobic surface property and is formed in a part of a region of the disposition surface present between the effective region and the nozzle and between two tangent lines intersecting with a jet direction of the nozzle and extending to be tangent to the effective region from both ends of the opening in a width direction along the disposition surface.