Title:
誘電体膜、その製造方法及びそれを用いた光学部材
Document Type and Number:
Japanese Patent JP7415949
Kind Code:
B2
Abstract:
The present invention addresses the problem of providing: a dielectric film, the surface of which exhibits excellent salt water resistance and excellent scratch resistance, and which is capable of maintaining a low water contact angle for a long period of time in a high-temperature high-humidity environment; a method for producing this dielectric film; and an optical member which uses this dielectric film. A dielectric film according to the present invention is arranged on a transparent substrate, and this dielectric film is characterized by having at least one low refractive index layer, while being also characterized in that: the uppermost layer of this dielectric film contains SiO2 and has a film density of 92% or more; and the uppermost layer contains an element that has a lower electronegativity than Si.
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Inventors:
Jinichi Kasuya
Kazunari Tada
Kazunari Tada
Application Number:
JP2020561196A
Publication Date:
January 17, 2024
Filing Date:
October 31, 2019
Export Citation:
Assignee:
Konica Minolta, Inc.
International Classes:
G02B1/113; G02B1/18
Domestic Patent References:
| JP2018197171A | ||||
| JP2001033607A | ||||
| JP2002338306A | ||||
| JP2018180429A | ||||
| JP2008109063A |
Foreign References:
| WO2017056598A1 | ||||
| WO2018110018A1 |
Attorney, Agent or Firm:
Koyo International Patent Office