Compound, resin precursor, cured object, optical element, optical system, interchangeable camera lens, optical device, cemented lens, and method for manufacturing cemented lens

Patent metadata

Field	Value
Publication number	US-12492273-B2
Application number	US-202217950489-A
Country	US
Kind code	B2
Filing date	Sep 22, 2022
Priority date	May 1, 2020
Publication date	Dec 9, 2025
Grant date	Dec 9, 2025

Abstract

A compound represented by Formula (1) given below. (In the formula, R 1 represents a hydrogen atom or a methyl group, X 1 represents a C 1 to 9 alkylene group, or a C 3 to 6 alkylene group in which at least one hydrogen is replaced with an acryloxy group or a methacryloxy group, l 1 represents an integer from 0 to 3, Q 1 represents a hydrogen atom or Formula (2) given below (In the formula, R 2 represents a hydrogen atom or a methyl group, X 2 represents a C 1 to 9 alkylene group, or a C 3 to 6 alkylene group in which at least one hydrogen is replaced with an acryloxy group or a methacryloxy group, l 2 represents an integer from 0 to 3, and * represents a bonding site), and Q 2 represents a hydrogen atom or Formula (3) given below (In the formula, R 3 represents a hydrogen atom or a methyl group, X 3 represents a C 1 to 9 alkylene group, or a C 3 to 6 alkylene group in which at least one hydrogen is replaced with an acryloxy group or a methacryloxy group, l 3 represents an integer from 0 to 3, and * represents a bonding site).

First claim

What is claimed is:

1 . A compound represented by Formula (1) given below

(In the formula, R 1 represents a hydrogen atom or a methyl group, X 1 represents a C 1 to 9 alkylene group, or a C 3 to 6 alkylene group in which at least one hydrogen is replaced with an acryloxy group or a methacryloxy group, l 1 represents an integer from 0 to 3, Q 1 represents a hydrogen atom or Formula (2) given below

(In the formula, R 2 represents a hydrogen atom or a methyl group, X 2 represents a C 1 to 9 alkylene group, or a C 3 to 6 alkylene group in which at least one hydrogen is replaced with an acryloxy group or a methacryloxy group, l 2 represents an integer from 0 to 3, and * represents a bonding site), and
Q 2 represents a hydrogen atom or Formula (3) given below

(In the formula, R 3 represents a hydrogen atom or a methyl group, X 3 represents a C 1 to 9 alkylene group, or a C 3 to 6 alkylene group in which at least one hydrogen is replaced with an acryloxy group or a methacryloxy group, l 3 represents an integer from 0 to 3, and * represents a bonding site).

2 . A resin precursor containing the compound according to claim 1 and a curable composition.

3 . The resin precursor according to claim 2 , wherein the curable composition is a photocurable composition.

4 . The resin precursor according to claim 2 , wherein the curable composition includes one or more compound selected from a group consisting of a fluorine-containing acrylate compound, a fluorine-containing methacrylate compound, an acrylate compound having a fluorene structure, a methacrylate compound having a fluorene structure, a diacrylate compound, and a dimethacrylate compound.

5 . The resin precursor according to claim 2 , wherein the curable composition includes one or more compound selected from a group consisting of 1,6-diacryloyloxy-2,2,3,3,4,4,5,5-octafluorohexane, 1,6-dimethacryloyloxy-2,2,3,3,4,4,5,5-octafluorohexane, 9,9-bis[4-(2-acryloyloxyethoxy)phenyl]fluorene, and 1,6-hexanediol diacrylate.

6 . The resin precursor according to claim 2 , wherein a content ratio of the compound represented by Formula (1) is 10 to 90 mass %.

7 . A cured object obtained by curing the resin precursor according to claim 2 .

8 . The cured object according to claim 7 , wherein a θ g,F value is 0.5 or greater.

9 . The cured object according to claim 7 , wherein a refractive index (n d ) with respect to a d-line is 1.50 or greater and 1.65 or less.

10 . The cured object according to claim 7 , wherein an abbe number (ν d ) is 10 or greater and 40 or less.

11 . The cured object according to claim 7 , wherein an inner transmittance is 80% or greater over a wavelength range from 440 nm to 500 nm.

12 . The cured object according to claim 7 , wherein a wavelength (λ 80 ) at which an inner transmittance is 80% is 430 nm or less.

13 . An optical element using the cured object according to claim 7 .

14 . An optical system comprising the optical element according to claim 13 .

15 . An interchangeable camera lens comprising the optical system according to claim 14 .

16 . An optical device comprising the optical system according to claim 14 .

17 . A cemented lens comprising a first lens element and a second lens element joined with each other through intermediation of the cured object according to claim 7 .

18 . An optical system comprising the cemented lens according to claim 17 .

19 . An interchangeable camera lens comprising the optical system according to claim 18 .

20 . An optical device comprising the optical system according to claim 18 .

21 . A method for manufacturing a cemented lens comprising:
a contacting step of contacting a first lens element and a second lens element with each other through intermediation of the resin precursor according to claim 2 ; and a joining step of curing the resin precursor to join the first lens element and the second lens element with each other.

22 . The method for manufacturing a cemented lens according to claim 21 , wherein, in the joining step, the resin precursor is irradiated with light to be cured.

23 . The method for manufacturing a cemented lens according to claim 22 , wherein the light radiates to the resin precursor through the first lens element.

24 . The method for manufacturing a cemented lens according to claim 22 , wherein the light radiates to the resin precursor through the second lens element.

Assignees

• Nikon Corp

Inventors

• Someya Yoshihiro
• Shijo Masayuki

Classifications

• C08F12/34

  Monomers containing two or more unsaturated aliphatic radicals · CPC title

• C08F12/22

  Oxygen · CPC title

• C08F12/32

  containing two or more rings · CPC title

• G02B1/041 Primary

  Lenses · CPC title

• C07C63/66

  Polycyclic acids with unsaturation outside the aromatic rings · CPC title