Title:
反射防止膜、光学素子、カメラモジュール、及び端末
Document Type and Number:
Japanese Patent JP7354287
Kind Code:
B2
Abstract:
An antireflection film (110), an optical element (100), a camera module (810), and a terminal (800) are provided, and relate to the field of optical terminals, to effectively reduce reflectivity of the optical element (100) for normal incident light and oblique incident light without limitation from a shape of the optical element (100), so that the optical element (100) has extremely low reflectivity. The antireflection film (110) includes a plurality of convex structures (111) formed on at least one light transmission surface (121) included in an optical waveguide (120). A maximum radial length of a surface that is of each convex structure (111) and that is close to the light transmission surface (121) is less than a minimum value of a visible light wavelength. The maximum radial length of each convex structure (111) gradually decreases in a direction away from the light transmission surface (121). A height of each convex structure (111) is greater than or equal to 310 nm. A distance between geometric centers of surfaces that are of two adjacent convex structures (111) and that are close to the light transmission surface (121) is less than or equal to 220 nm. The antireflection film (110) is applied to the terminal (800).
Inventors:
Leaf seawater
Application Number:
JP2021563263A
Publication Date:
October 02, 2023
Filing Date:
April 21, 2020
Export Citation:
Assignee:
HUAWEI TECHNOLOGIES CO.,LTD.
International Classes:
G02B1/118; G02B3/00; G02B5/22; G03B11/00
Domestic Patent References:
| JP2007264594A | ||||
| JP20089408A | ||||
| JP201421146A | ||||
| JP200975539A | ||||
| JP2010271533A | ||||
| JP2009162965A | ||||
| JP20112762A | ||||
| JP201248239A | ||||
| JP2013137485A | ||||
| JP2015184440A |
Foreign References:
| WO2016047032A1 | ||||
| WO2011013401A1 | ||||
| WO2011016270A1 |
Attorney, Agent or Firm:
Katsugo Akazawa
Ikudai Kubota
Ikudai Kubota
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