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Manufacturing method of optical member

A technology for optical components and manufacturing methods, applied in chemical instruments and methods, lamination auxiliary operations, lamination, etc., can solve problems such as low antifouling properties and difficulty in erasing fingerprints

Active Publication Date: 2021-05-14
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in conventional optical members, since the surface has a concave-convex structure, there is a problem that it is difficult to wipe off fingerprints, that is, the antifouling property is low.

Method used

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  • Manufacturing method of optical member
  • Manufacturing method of optical member
  • Manufacturing method of optical member

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0032] The manufacturing method of the optical member of Embodiment 1 relates to the manufacturing method of the 1st optical member of this invention. Refer to the following figure 1 The manufacturing method of the optical member of Embodiment 1 is demonstrated. figure 1 It is a cross-sectional schematic diagram for demonstrating the manufacturing method of the optical member of Embodiment 1.

[0033] (Process (1): Preparation of resin solution)

[0034] A photocurable resin and a release agent are dissolved in a solvent to prepare a resin solution 3 .

[0035] The preparation of the resin solution 3 is performed in the following procedure, for example.

[0036] (i) Various monomers, photopolymerization initiators, etc. are mixed appropriately to prepare a photocurable resin (transparent state).

[0037] (ii) A mixture of a photocurable resin and a release agent is prepared (cloudy state).

[0038] (iii) A mixture of a photocurable resin and a release agent is dissolved...

Embodiment approach 2

[0101] The manufacturing method of the optical member of Embodiment 2 relates to the manufacturing method of the 2nd optical member of this invention. Refer below figure 2 The manufacturing method of the optical member of Embodiment 2 is demonstrated. figure 2 It is a cross-sectional schematic diagram for demonstrating the manufacturing method of the optical member of Embodiment 2. The manufacturing method of the optical member of Embodiment 2 is the same as the manufacturing method of the optical member of Embodiment 1, except that the photocurable resin and the release agent are divided into two layers and applied, and then the two layers are integrated. , so descriptions are appropriately omitted for the repetitions.

[0102] (Process (1): Application of the first resin and the second resin)

[0103] Such as figure 2 As shown in (a), the first resin 8 containing a photocurable resin is applied to the surface of the substrate 2 . Next, the second resin 9 containing a...

Embodiment approach 3

[0124] The manufacturing method of the optical member of Embodiment 3 relates to the manufacturing method of the 2nd optical member of this invention. Refer below image 3 The manufacturing method of the optical member of Embodiment 3 is demonstrated. image 3 It is a cross-sectional schematic diagram for demonstrating the manufacturing method of the optical member of Embodiment 3. The manufacturing method of the optical member in Embodiment 3 is the same as the manufacturing method of the optical member in Embodiment 2 except that the second resin is applied to the surface of the mold. Therefore, descriptions of overlapping parts are appropriately omitted.

[0125] (Process (1): Application of the first resin and the second resin)

[0126] Such as image 3 As shown in (a), the first resin 8 containing a photocurable resin is applied to the surface of the substrate 2 . Next, the second resin 9 containing a release agent is applied to the surface (concave-convex surface) of...

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Abstract

The present invention provides a method of manufacturing an optical member having improved antifouling properties and abrasion resistance without impairing transparency. In the manufacturing method of the optical member of the present invention, the optical member is provided with: a substrate; : step (1), photocurable resin and release agent are dissolved in solvent, prepares resin solution; Step (2), above-mentioned resin solution is coated on the surface of above-mentioned base material; Step (3), carries out from above-mentioned The coating of the resin solution is heat-treated to remove the above-mentioned solvent to form a resin layer; step (4), in a state where the above-mentioned resin layer is sandwiched, the above-mentioned base material is pressed against a mold, and the above-mentioned concave-convex structure is formed on the above-mentioned resin layer and step (5), curing the above resin layer by light irradiation to form the above polymer layer, the above photocurable resin and the above mold release agent being a combination that exhibits a prescribed turbidity when mixed with each other, The haze of the said optical member is less than 1.0%.

Description

technical field [0001] This invention relates to the manufacturing method of an optical member. More specifically, it relates to a method of manufacturing an optical member having a nano-sized uneven structure. Background technique [0002] Applications of optical members to various fields have been studied (for example, refer to Patent Documents 1 to 5). In particular, an optical member having a nano-sized concave-convex structure (nanostructure) is known to have excellent antireflection properties. According to such a concavo-convex structure, the refractive index changes continuously from the air layer to the substrate, so reflected light can be drastically reduced. [0003] prior art literature [0004] patent documents [0005] Patent Document 1: JP-A-2007-178724 [0006] Patent Document 2: JP-A-2005-97371 [0007] Patent Document 3: International Publication No. 2015 / 060458 [0008] Patent Document 4: International Publication No. 2013 / 187506 [0009] Patent...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C59/02B32B3/30B32B38/06
CPCB29C59/02B32B3/30B32B38/06
Inventor 厚母贤芝井康博中松健一郎
Owner SHARP KK
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