The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 02, 2021
Filed:
Apr. 24, 2017
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventor:
Masanobu Ogane, Yokohama, JP;
Assignee:
CANON KABUSHIKI KAISHA, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 1/115 (2015.01); C03C 17/34 (2006.01); C03C 17/00 (2006.01); C03C 17/25 (2006.01); G02B 1/118 (2015.01); G02B 27/00 (2006.01);
U.S. Cl.
CPC ...
G02B 1/115 (2013.01); C03C 17/007 (2013.01); C03C 17/25 (2013.01); C03C 17/34 (2013.01); G02B 1/118 (2013.01); G02B 27/0018 (2013.01); C03C 2217/465 (2013.01); C03C 2217/478 (2013.01); C03C 2217/73 (2013.01); C03C 2218/113 (2013.01); C03C 2218/116 (2013.01); C03C 2218/31 (2013.01); G02B 2207/109 (2013.01);
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.