Composition for vapour-phase deposition, method for forming anti-reflecting film using the same and its optical element

A technology of anti-reflection film and optical components, applied in the direction of optical components, optical components, optics, etc., can solve problems such as unsatisfactory production efficiency

Inactive Publication Date: 2002-06-19
HOYA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Containing Ta 2 o 5 , ZrO 2 and Y 2 o 3 vapor deposition composition, it takes a relatively long time to form the desired antireflective film, and thus is not satisfactory from the viewpoint of production efficiency

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1、 Embodiment 4、 comparative Embodiment 1 and comparative Embodiment 4

[0064] A plastic lens (CR- 39: Substrate A), a synthetic resin substrate coated with an anti-reflective film having a refractive index of 1.499 was prepared. Formation of hard coat (nd 1.50)

[0065] A plastic lens is dipped in a coating solution containing 80 mol % colloidal silica and 20 mol % gamma-glycidoxypropyltrimethoxysilane, and cured thereon to form a hard coat.

[0066] In Example 1, the plastic lens on which the hard coat was formed was heated at 80° C., and the hard coat was evaporated by vacuum (at 2×10 -5 Torr's vacuum) to form a base layer composed of silicon dioxide (having a refractive index of 1.46 and a thickness of 0.4875λ (λ=500nm)). Next, by heating the three-component composition A (Nb 2 o 5 : ZrO 2 : Y 2 o 3 =76:16.6:7.4% by weight) to prepare a film (having a refractive index of 2.12 and a thickness of 0.0502λ), the composition is obtained by mixing Nb 2 o 5 Powder, ZrO 2 Powder and Y 2 o 3 Powder, at 300kg / cm 2The resulting mixtures were...

Embodiment 2、 Embodiment 5、 comparative Embodiment 2 and comparative Embodiment 5

[0070] 142 parts by weight of an organosilicon compound, namely γ-glycidoxypropyltrimethoxysilane, was placed in a glass container, and 1.4 parts by weight of 0.01N hydrochloric acid and 32 parts by weight of water were added dropwise while stirring. After the dropwise addition, it was stirred for 24 hours to obtain a hydrolyzed γ-glycidoxypropyltrimethoxysilane solution. Add 460 parts by weight of tin oxide-zirconia mixed sol (dispersed in methanol, with a total metal oxide content of 31.5% by weight and an average particle size of 10 to 15 nanometers), 300 parts by weight of ethyl cellosolve in the solution , 0.7 parts by weight of silicone surfactant lubricant, and 8 parts by weight of aluminum acetylacetonate curing agent. The mixture was uniformly stirred and then filtered to prepare a coating solution. hard coat formation

[0071] A plastic lens substrate (plastic lens for spectacles manufactured by Hoya Corporation, EYAS (trade name) having a refractive index of 1.60—...

Embodiment 3、 Embodiment 6、 comparative Embodiment 3 and comparative Embodiment 6

[0074] 100 parts by weight of the organosilicon compound, that is, γ-glycidoxypropyltrimethoxysilane was placed in a glass container, and 1.4 parts by weight of 0.01N hydrochloric acid and 23 parts by weight of water were added by stirring. After the addition, it was stirred for 24 hours to obtain a solution of hydrolyzed γ-glycidoxypropyltrimethoxysilane. On the other hand, 200 parts by weight of inorganic particulate matter, a mixed sol of particles mainly composed of titanium oxide, zirconium oxide and silicon oxide (dispersed in methanol, having a total solid content of 20% by weight and an average particle size of 5 to 15 nanometers, wherein the atomic ratio of titanium / silicon in the core particles is 10, and the weight ratio of the shell to the core is 0.25, this sol can be prepared according to Japanese Laid-Open Patent Application No. 270620 / 1988), and 100 parts by weight Ethyl cellosolve, 0.5 parts by weight silicone surfactant lubricant, and 3.0 parts by weight alum...

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Abstract

It is an object of the invention to provide a method for producing an optical element having a multi-layered antireflection film formed on a synthetic resin substrate, in which the antireflection film formed has good heat resistance, and its heat resistance lowers little with time. The method makes it possible to form high-refraction layers within a shorter period of time, not detracting from the good physical properties intrinsic to the layers. At least one high-refraction layer of the multi-layered anti-reflection film contains niobium oxide, zirconium oxide, yttrium oxide, and optionally aluminum oxide.

Description

[0001] Detailed description of the invention [0002] Technical Field of the Invention [0003] The present invention relates to a composition suitable for vapor deposition, a method for forming an antireflection film using the composition, and an optical element. technical background [0004] In order to improve the surface reflection characteristics of an optical element comprising a synthetic resin, it is known to form an antireflection film on the surface of the synthetic resin. For example, Japanese Laid-Open Patent Application No. 116003 / 1981 discloses an optical element having an antireflection film formed on a CR-39 (diethylene glycol diallyl carbonate) resin substrate, wherein the antireflection The film consists of SiO with a thickness of 1.5λ 2 base layer made of ZrO 2 layer and SiO 2 The first layer made of two equivalent films with a total thickness of about 0.25λ, made of ZrO 2 made of a second ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02C7/02B32B9/00C23C14/08C23C14/24G02B1/10G02B1/11G02B1/115G02B1/14
CPCG02B1/115C23C14/08C23C14/083G02B1/10
Inventor 三石刚史嘉村齐新出谦一武井博基小林明德高桥幸弘渡边裕子
Owner HOYA CORP
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