Title:
可視光反射防止用光学製品
Document Type and Number:
Japanese Patent JP7188827
Kind Code:
B2
Abstract:
To provide an optical product having a film of a minute rugged structure, that pertains to a material other than aluminum and its compounds, and a method for easily manufacturing this optical product.SOLUTION: An optical product 1 comprises a substrate 2 and an optical film 4 formed on its deposition surface F. The optical film 4 includes an Al2O3 layer 12, made of Al2O3, which is arranged on the substrate 2 side, and a SiO2 layer 14, made of SiO2, which has a minute rugged structure. A method for manufacturing the optical product 1 includes a step for forming on the substrate 2 a production intermediate film based on Al which is aluminum, an aluminum alloy or an aluminum compound, and a step for immersing the substrate 2, with the production intermediate film based on Al attached thereto, in an aqueous solution of silica. Concentration of silica in the aqueous solution is 10 mg/l or less.SELECTED DRAWING: Figure 1
Inventors:
Kei Nishimoto
Tomoaki Inoue
Tomoaki Inoue
Application Number:
JP2022019007A
Publication Date:
December 13, 2022
Filing Date:
February 09, 2022
Export Citation:
Assignee:
Tokai Optical Co., Ltd.
International Classes:
G02B1/118; B32B7/023; C23C14/58
Domestic Patent References:
| JP2009162989A |
Foreign References:
| WO2014077399A1 | ||||
| WO2012157719A1 | ||||
| WO2012157706A1 | ||||
| KR1020080022254A |
Attorney, Agent or Firm:
Ishida Kiki
Kiyotaka Sonoda
Kiyotaka Sonoda
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