US 12,152,153 B2
Light transmitting member, transparent protective cover, and image pickup system
Yoji Teramoto, Kanagawa (JP); Shun Ouchi, Kanagawa (JP); and Yu Kameno, Kanagawa (JP)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Nov. 21, 2022, as Appl. No. 18/057,312.
Claims priority of application No. 2021-197361 (JP), filed on Dec. 3, 2021; and application No. 2022-164910 (JP), filed on Oct. 13, 2022.
Prior Publication US 2023/0174789 A1, Jun. 8, 2023
Int. Cl. H04N 23/51 (2023.01); C09D 1/00 (2006.01); C09D 5/00 (2006.01); C09D 7/40 (2018.01); C09D 7/62 (2018.01); G02B 27/00 (2006.01); H04N 23/52 (2023.01)
CPC C09D 1/00 (2013.01) [C09D 5/00 (2013.01); C09D 7/62 (2018.01); C09D 7/67 (2018.01); C09D 7/70 (2018.01); G02B 27/0006 (2013.01); H04N 23/51 (2023.01); H04N 23/52 (2023.01)] 32 Claims
OG exemplary drawing
 
1. A light transmitting member comprising:
a base material;
a first porous layer formed on a first surface of the base material; and
a second porous layer formed on a second surface opposed to the first surface of the base material,
wherein the second porous layer has a pore volume larger than a pore volume of the first porous layer.