US 12,247,135 B2
Film, liquid composition, optical element, and imaging apparatus
Koichiro Nakamura, Kanagawa (JP); and Satoru Kusaka, Tokyo (JP)
Assigned to NIPPON SHEET GLASS COMPANY, LIMITED, Tokyo (JP)
Filed by Nippon Sheet Glass Company, Limited, Tokyo (JP)
Filed on Apr. 15, 2024, as Appl. No. 18/635,574.
Application 18/635,574 is a continuation of application No. 16/969,478, granted, now 11,987,722, previously published as PCT/JP2018/041533, filed on Nov. 8, 2018.
Claims priority of application No. 2018-023182 (JP), filed on Feb. 13, 2018; and application No. 2018-209453 (JP), filed on Nov. 7, 2018.
Prior Publication US 2024/0271004 A1, Aug. 15, 2024
Int. Cl. C09D 183/04 (2006.01); C08K 7/24 (2006.01); C09D 7/61 (2018.01); G02B 1/111 (2015.01); G02B 1/118 (2015.01)
CPC C09D 183/04 (2013.01) [C09D 7/61 (2018.01); G02B 1/111 (2013.01); G02B 1/118 (2013.01); C08K 7/24 (2013.01); C08K 2201/003 (2013.01); C08K 2201/011 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A laminate comprising:
a substrate; and
at least two selected from the group consisting of a first layer, a second layer, and a third layer,
the first layer having a thickness of 30˜300 nm and refractive index of 1.5 or less, the first layer including:
a hollow particle that includes a material with a refractive index of 1.15˜2.70; and
a polysilsesquioxane,
the second layer having a thickness of 30˜300 nm and refractive index of more than 1.5 and 1.8 or less, the second layer including alumina or a mixture of silica and titania,
the third layer having a thickness of 30˜300 nm and refractive index of more than 1.8, the third layer including at least one selected from the group consisting of titania, zirconia, tantalum oxide and niobium oxide.