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公开(公告)号:US20220128808A1
公开(公告)日:2022-04-28
申请号:US17511485
申请日:2021-10-26
Applicant: OLYMPUS CORPORATION
Inventor: Yoshiharu SAITO , Kentaro IMOTO , Daisuke NISHIWAKI
Abstract: Provided is an optical signal detection device that includes: an objective; a holding member provided between the objective and a sample to hold the sample; and a gel member that fills a space between the objective and the holding member. The gel member has ¼ scale penetration indicating a value of 44 to 111, both inclusive, measured based on a penetration test using a ¼ scale cone of JIS K 2220.