US 12,392,968 B2
Optical device, optical modulation device and optical transmission device
Hideki Ichimei, Tokyo (JP); and Kei Kato, Tokyo (JP)
Assigned to SUMITOMO OSAKA CEMENT CO., LTD., Tokyo (JP)
Appl. No. 18/028,466
Filed by SUMITOMO OSAKA CEMENT CO., LTD., Tokyo (JP)
PCT Filed Sep. 30, 2021, PCT No. PCT/JP2021/036269
§ 371(c)(1), (2) Date Mar. 24, 2023,
PCT Pub. No. WO2023/053402, PCT Pub. Date Apr. 6, 2023.
Prior Publication US 2024/0310584 A1, Sep. 19, 2024
Int. Cl. G02B 6/30 (2006.01); G02F 1/01 (2006.01)
CPC G02B 6/30 (2013.01) [G02F 1/011 (2013.01)] 8 Claims
OG exemplary drawing
 
1. An optical device in which an optical component is accommodated inside a case, the optical device comprising:
an optical component fixing member on which the optical component is mounted,
wherein a side surface portion and a bottom surface portion of the case are joined,
the optical component fixing member abuts on the side surface portion and is joined to the bottom surface portion, and
the optical component fixing member has a recess portion for separating the optical component fixing member from a corner portion inside a location in which the side surface portion and the bottom surface portion of the case are joined.