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Optical component and timepiece

一种光学部件、钟表的技术，应用在光学元件、光学、钟表等方向，能够解决无法确保光学部件透过性、无法有效地防止静电污垢的附着等问题，达到优异防反射功能、优异抗静电功能、视觉辨认性优异的效果

Inactive Publication Date: 2016-06-15
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the past, it was not possible to ensure the light transmittance of optical components, and it was not possible to effectively prevent the adhesion of dirt caused by static electricity, etc.

Method used

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  • Optical component and timepiece
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  • Optical component and timepiece

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach

[0042] figure 1 It is a cross-sectional view schematically showing the first embodiment of the optical component of the present invention. figure 2 It is a figure which schematically shows an example of the particle size distribution of the silica particle which comprises the film of the optical component of this invention.

[0043] Such as figure 1 As shown, the optical component P10 of the present embodiment includes: a base material P1; and a film P2 containing silica particles P21 and conductive transparent metal oxide particles P22.

[0044] With such a structure, the antistatic function of the optical component P10 as a whole is exhibited. In other words, the film P2 can function as an antistatic film. As a result, for example, adhesion of dirt such as dust due to static electricity can be prevented, and the optical component P10 can stably exhibit the inherent optical characteristics.

[0045] In addition, since both the silica particles P21 and the conductive tran...

no. 2 Embodiment approach

[0127] image 3It is a cross-sectional view schematically showing a second embodiment of the optical component of the present invention. In the following description, differences from the above-described embodiment will be mainly described, and descriptions of the same matters will be omitted.

[0128] Such as image 3 As shown, the optical component P10 of the present embodiment includes: a substrate P1; a film P2 containing silica particles P21 and conductive transparent metal oxide particles P22; and an underlayer P3.

[0129] By having the base layer P3 in this way, for example, the adhesion between the base material P1 and the film P2 (adhesion through the base layer P3) can be particularly excellent, and the durability and reliability of the optical component P10 can be particularly excellent.

[0130] As a constituent material of the base layer P3, for example, various resin materials, SiO 2 Wait.

[0131] The thickness of the base layer P3 is not particularly limit...

Embodiment 1

[0204] A cover glass as an optical component was manufactured by the method shown below.

[0205] First, a plate material (glass plate) made of sapphire glass is prepared as a base material (base material preparation process), and necessary parts are cut and polished. The base material after cutting and grinding was approximately disc-shaped, and had a size of diameter: 30 mm×thickness: 1 mm.

[0206] Next, an ultraviolet irradiation treatment of irradiating ultraviolet rays having a wavelength of 248 nm is performed on the surface of the substrate on which the antireflection film is to be formed.

[0207] Next, the film-forming composition is applied to the entire surface of the substrate by a spraying method (film-forming composition applying step).

[0208] As the film-forming composition, silica particles, tin oxide (SnO 2 ) particles (average particle diameter based on number: 2.0 nm) and methanol as a dispersion medium.

[0209] Silica particles that have the first ma...

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Abstract

An optical component includes a base material and a film containing silica particles and conductive transparent metal oxide particles. The conductive transparent metal oxide particles are preferably composed of SnO2. The number-based average particle diameter of the conductive transparent metal oxide particles is preferably 0.8 nm or more and 5.0 nm or less. When the content of the silica particles in the film is represented by Xs (vol %) and the content of the conductive transparent metal oxide particles in the film is represented by Xc (vol %), it is preferred to satisfy the following relationship: 0.003!<=Xc / Xs!<=0.12.

Description

technical field [0001] The invention relates to optical components and timepieces. Background technique [0002] For optical components such as timepiece glass covers, highly transparent materials such as various glass materials and various plastic materials are generally used. [0003] In addition, such an optical component may be provided with a film such as an antireflection film for the purpose of preventing reflection of unintentional light (for example, refer to Patent Document 1). [0004] However, conventionally, it was not possible to secure the light transmittance of optical components, and it was not possible to effectively prevent the adhesion of dirt due to static electricity, and the like. [0005] Patent Document 1: Japanese Patent Laid-Open No. 2010-37115 Contents of the invention [0006] The object of the present invention is to provide an optical part having sufficient light transmittance and excellent antistatic function, and to provide a timepiece ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B1/113G02B1/16G02B1/14G04B39/00
CPCG04B39/002G02B1/113G02B1/16G04B39/006G04B39/004
Inventor 古里大喜铃木克己
Owner SEIKO EPSON CORP
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