US 12,146,011 B2
Cured product, optical element, optical apparatus, and image pickup apparatus
Kei Tagami, Kanagawa (JP); Kouichi Yonetani, Kanagawa (JP); and Kumiko Yashima, Tokyo (JP)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on May 18, 2022, as Appl. No. 17/747,203.
Claims priority of application No. 2021-089311 (JP), filed on May 27, 2021.
Prior Publication US 2022/0403066 A1, Dec. 22, 2022
Int. Cl. C08F 20/06 (2006.01); C08L 29/12 (2006.01); C08L 33/08 (2006.01); C08L 33/10 (2006.01); C08L 79/02 (2006.01); C08L 81/06 (2006.01); G02B 1/04 (2006.01); H04N 5/225 (2006.01); H04N 23/55 (2023.01)
CPC C08F 20/06 (2013.01) [C08L 29/12 (2013.01); C08L 33/08 (2013.01); C08L 33/10 (2013.01); C08L 79/02 (2013.01); C08L 81/06 (2013.01); G02B 1/041 (2013.01); H04N 23/55 (2023.01); C08L 2201/10 (2013.01)] 6 Claims
 
1. A cured product of a resin composition comprising:
a compound represented by general formula (1):

OG Complex Work Unit Chemistry
wherein R1 and R2 each independently represent a substituted or unsubstituted alkyl group having 1 to 10 carbon atoms, or a substituted or unsubstituted alkylene group having 1 to 8 carbon atoms, the alkylene group having one selected from the group consisting of an acryloyloxy group and a methacryloyloxy group, and
wherein R3 to R12 each independently represent a hydrogen atom, a trifluoromethyl group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkylene group having one selected from the group consisting of an acryloyloxy group and a methacryloyloxy group, an acryloyloxy group, or a methacryloyloxy group,
provided that at least one of R3 to R12 represents the trifluoromethyl group, and at least one of R1 to R12 has one selected from the group consisting of the acryloyloxy group and the methacryloyloxy group; and
a compound having at least one thiol group,
wherein a content of the compound having at least one thiol group in the cured product is 30 mass % or less, and
wherein the cured product has a secondary dispersion characteristic of 0.65 or more.