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-12139646-B2
Application number	US-202117314230-A
Country	US
Kind code	B2
Filing date	May 7, 2021
Priority date	Nov 9, 2018
Publication date	Nov 12, 2024
Grant date	Nov 12, 2024

Abstract

Provided is a compound represented by Formula (1) given below. (In the formula, R 1 represents a hydrogen atom or a methyl group, R 2 represents a hydrogen atom, a phenyl group, a C 1 to 8 alkyl group, or a C 1 to 4 perfluoroalkyl group, X 1 represents a hydrogen atom or a hydroxy group, Y 1 represents a C 1 to 9 alkylene group containing a fluorine atom or a C 1 to 9 alkylene group containing no fluorine atom, and n 1 is an integer from 0 to 3.).

First claim

What is claimed is:

1. A compound represented by Formula (1):

in the formula, R 1 represents a hydrogen atom or a methyl group, R 2 represents a hydrogen atom, a phenyl group, a C 1-8 alkyl group, or a C 1-4 perfluoroalkyl group, X 1 represents a hydrogen atom or a hydroxy group, Y 1 represents a C 1-9 alkylene group optionally substituted with a fluorine atom, and n 1 is an integer from 0 to 3.

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 compound represented by Formula (2), 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;

in the formula, R 2 and R 3 independently represent a hydrogen atom or a methyl group, Y 2 and Y 3 independently represent a C 1-9 alkylene group, and n 2 and n 3 independently represent an integer from 0 to 3.

5. The resin precursor according to claim 2 , wherein the curable composition comprises 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 the amount of the compound represented by Formula (1) in the resin precursor is 10 to 50 mass %.

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

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

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

11. The cured object according to claim 7 , having an inner transmittance is 80% or greater over a wavelength range from 400 nm to 450 nm.

12. An optical element manufactured from the cured object according to claim 7 .

13. An optical system comprising the optical element according to claim 12 .

14. An interchangeable camera lens comprising the optical system according to claim 13 .

15. An optical device comprising the optical system according to claim 13 .

16. 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 .

17. An optical system comprising the cemented lens according to claim 16 .

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

19. An optical device comprising the optical system according to claim 17 .

20. A method for manufacturing a cemented lens, the method 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 joining the first lens element and the second lens element with each other by curing the resin precursor.

21. The method for manufacturing a cemented lens according to claim 20 , wherein, in the joining step, the resin precursor is irradiated with light to be cured.

22. The method for manufacturing a cemented lens according to claim 21 , wherein the light radiates to the resin precursor through the first lens element.

23. The method for manufacturing a cemented lens according to claim 21 , wherein the light radiates to the resin precursor through the second lens element.

Assignees

• Nikon Corp

Inventors

• Someya Yoshihiro
• Shijo Masayuki

Classifications

• C07C69/653

  Acrylic acid esters; Methacrylic acid esters; Haloacrylic acid esters; Halomethacrylic acid esters · CPC title

• G02B13/006

  at least one element being a compound optical element, e.g. cemented elements · CPC title

• G02B1/041

  Lenses · CPC title

• C09J2433/00

  Presence of (meth)acrylic polymer · CPC title

• C09J5/00

  Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers · CPC title