US 12,130,417 B2
Optical signal detection device, gel member, and optical signal detection method
Yoshiharu Saito, Tokyo (JP); Kentaro Imoto, Tokyo (JP); and Daisuke Nishiwaki, Tokyo (JP)
Assigned to Evident Corporation, Nagano (JP)
Filed by Evident Corporation, Nagano (JP)
Filed on Oct. 26, 2021, as Appl. No. 17/511,485.
Claims priority of application No. 2020-180773 (JP), filed on Oct. 28, 2020; and application No. 2021-135022 (JP), filed on Aug. 20, 2021.
Prior Publication US 2022/0128808 A1, Apr. 28, 2022
Int. Cl. G02B 21/33 (2006.01); G02B 21/02 (2006.01); G02B 21/06 (2006.01); G02B 21/24 (2006.01); G02B 21/36 (2006.01)
CPC G02B 21/33 (2013.01) [G02B 21/02 (2013.01); G02B 21/06 (2013.01); G02B 21/24 (2013.01); G02B 21/36 (2013.01)] 24 Claims
OG exemplary drawing
 
1. An optical signal detection device comprising:
an objective;
a holding member provided between the objective and a sample and configured to hold the sample; and
a gel member that fills a space between the objective and the holding member,
wherein the gel member has ¼ scale penetration indicating a value of 44 to 111, both inclusive, as measured based on a penetration test using a ¼ scale cone of JIS K 2220.