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Optical element, and optical article and production method

A technology of optical elements and diffractive optical elements, which is applied in the field of manufacturing optical elements, optical articles and optical elements, and can solve the problems of difficult bonding of inorganic optical materials, poor processability and formability, and high forming temperature

Inactive Publication Date: 2009-01-14
NIKON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, general inorganic materials are inferior in processability and moldability compared to organic materials, and it is not easy to completely make adhesion between inorganic optical materials
In addition, the glass material is limited, and the molding temperature is high, so heat resistance is required, and the material of the molding die is also limited.

Method used

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  • Optical element, and optical article and production method
  • Optical element, and optical article and production method
  • Optical element, and optical article and production method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0149] A. Preparation of Resin Precursor Composition

[0150] (1) Resin precursor composition I

[0151] The 1st resin precursor uses 2,2,2-trifluoroethyl methacrylate (n d =1.3605, n F -n C =0.0075), the second resin precursor uses R 20 and R 22 is methyl, R 21 for-(OCH 2 CH 2 ) w1 -, R 23 for-(OCH 2 CH 2 ) w2 -, w1+w2=2.2, the bisphenol A dimethacrylate (n d =1.5425, n F -n C =0.0164), the first resin precursor and the second resin precursor were mixed at a volume ratio of 1:9, fully stirred, and the resin precursor composition I was prepared. The optical constant of the obtained resin precursor composition I is: Refractive index n d =1.5243, dispersion (n F -n C ) = 0.0155.

[0152] (2) Resin Precursor Composition II

[0153] The 1st resin precursor uses 1,3-butanediol diacrylate (n d = 1.4500, n F -n C =0.0093), the second resin precursor uses R 20 and R 22 is methyl, R 21 for-(OCH 2CH 2 ) w1 -, R 23 for-(OCH 2 CH 2 ) w2 When -, w1+w2=4, th...

Embodiment 2

[0187] First, an alicyclic olefin resin (ZEONEX manufactured by Nippon Zeon Co., Ltd.) having a repeating unit represented by the following structural formula (34) was injection-molded to form figure 2 (a) The second member 12 shown. During molding, the cylinder temperature was set at 210°C, and the mold temperature was set at 100°C.

[0188]

[0189] Then, 58% by weight of 2,2,2-trifluoroethyl methacrylate represented by the following structural formula (35) and 2-acrylic acid 5,5'-[9H-fluorene- 9-ylidene group]bis[(1,1'-diphenyl)-2-poly(oxygen-2,1-ethanediyl)ester 41.5% by weight, and a photopolymerization initiator (Irgakiyua manufactured by Chiba Speciyari Tei Chemical Caluses) 184) 0.5% by weight was mixed to prepare an ultraviolet curable resin composition.

[0190] CH 2 =C(CH 3 ) COOCH 2 CF 3 ...(35)

[0191]

[0192] (In the formula, X is an integer greater than or equal to 1.)

[0193] The ultraviolet curable resin composition is dropped on the grid...

Embodiment 3

[0199] First, 0.3 mol of dicyclohexylmethane-4,4'-diisocyanate, 0.2 mol of 1,2-bis[(2-mercaptoethyl)sulfur]-3-mercaptopropane, and 0.1 wt. % dibutyltin dilaurate was mixed uniformly to prepare alicyclic thiourethane resin.

[0200] The obtained alicyclic thiourethane resin is filled between the base material 13 made of optical glass and a mold having a grid shape and a release agent coated on the molding surface, and heated at 130°C 2 hours, let it cure, after which demoulding, such as image 3 As shown, the second member 12 is formed on the surface of the base material 23 .

[0201] Then, 49.5% by weight of benzyl methacrylate and 2-acrylic acid 5,5'-{4-(1,1'-biphenyl)methylene}bis[(1 , 1'-diphenyl)-2-poly(oxygen-2,1-ethanediyl)] ester 20% by weight, bisphenol AF dimethacrylate represented by the following structural formula (38) 30% by weight, It was mixed with 0.5% by weight of a photopolymerization initiator (Irugakiyua 184 manufactured by Chiba Speciari Teikaruzu Co., ...

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Abstract

The present invention discloses an optical element, an optic article and a manufacturing method of optical element. The optical element of the present invention has a first member and a second member which have been joined in close contact, and has nd1 > nd2 and (nF1 - nC1) < (nF2 - nC2), where the first member is formed of a resin having both a benzene ring and a fluorine atom, or the second member is formed of a resin having an alicyclic structure. It also makes use of an optic-purpose resin precursor composition prepared by mixing a first resin precursor having nd < 1.50 and (nF - nC) > 0.003 in an uncured state and a second resin precursor having nd < 1.62 and (nF - nC) > 0.010.

Description

[0001] This application is a divisional application, the application number of the original application is 02823943.1 (PCT / JP02 / 12602), the application date is December 2, 2002, and the title of the invention is "resin precursor composition for optics, resin for optics, optical element and optics". technical field [0002] The present invention relates to an adhesive multilayer diffractive optical element and its manufacturing method, an optical article comprising the element, an optical resin precursor composition and an optical resin used for the element. Background technique [0003] In recent years, the technology of compensating chromatic aberration using diffractive optical elements has been developed in imaging optical systems, and optical materials with low refractive index and high dispersion suitable for this technology have attracted attention. For example, JP-A-9-127321 proposes to use a bonded multilayer diffractive optical element composed of two layers with di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B1/04C08F220/10
Inventor 中村徹宫川晶子
Owner NIKON CORP