US 12,332,175 B2
Optical measurement cell, optical analyzer, window forming member, and method of manufacturing optical measurement cell
Yoshiaki Nakata, Kyoto (JP); Masakazu Minami, Kyoto (JP); Yuhei Sakaguchi, Kyoto (JP); Toru Shimizu, Kyoto (JP); and Takeshi Akamatsu, Kyoto (JP)
Assigned to HORIBA STEC, CO., LTD., Kyoto (JP)
Filed by HORIBA STEC, Co., Ltd., Kyoto (JP)
Filed on Dec. 22, 2022, as Appl. No. 18/087,006.
Claims priority of application No. 2022-004415 (JP), filed on Jan. 14, 2022.
Prior Publication US 2023/0228679 A1, Jul. 20, 2023
Int. Cl. G01N 21/61 (2006.01); G01N 33/00 (2006.01)
CPC G01N 21/61 (2013.01) [G01N 33/0027 (2013.01); G01N 33/007 (2013.01)] 6 Claims
OG exemplary drawing
 
1. An optical measurement cell including a light transmission window through which light is transmitted, and into which a sample is introduced, the optical measurement cell comprising:
a window material forming the light transmission window; and
a flange member to which the window material is bonded via a metal thin film, wherein
a ratio of a thermal expansion coefficient of the flange member to a thermal expansion coefficient of the window material is 0.5 times or more and 1.5 times or less.