Invention Grant
- Patent Title: Antireflection film, and optical member and optical apparatus each using the antireflection film
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Application No.: US15494972Application Date: 2017-04-24
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Publication No.: US10908319B2Publication Date: 2021-02-02
- Inventor: Masanobu Ogane
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: CANON KABUSHIKI KAISHA
- Current Assignee: CANON KABUSHIKI KAISHA
- Current Assignee Address: JP Tokyo
- Agency: Venable LLP
- Priority: JP2016-092306 20160502
- Main IPC: G02B1/115
- IPC: G02B1/115 ; C03C17/34 ; C03C17/00 ; C03C17/25 ; G02B1/118 ; G02B27/00

Abstract:
Provided are an antireflection film having a high antireflection effect in a broad band, including, on a substrate, in this order: a particle layer containing particles; and a layer having a textured structure containing aluminum oxide as a main component, in which the particle layer has an aluminum oxide textured structure between the particles, and an optical member and an optical apparatus each using the antireflection film.
Public/Granted literature
- US20170315269A1 ANTIREFLECTION FILM, AND OPTICAL MEMBER AND OPTICAL APPARATUS EACH USING THE ANTIREFLECTION FILM Public/Granted day:2017-11-02
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