Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
ANTIREFLECTIVE FILM, OPTICAL ELEMENT, AND OPTICAL SYSTEM
Document Type and Number:
WIPO Patent Application WO/2018/043516
Kind Code:
A1
Abstract:
Provided is an antireflective film having high mechanical strength, high light transmittance, and high antireflective performance, an optical element provided with the antireflective film, and an optical system provided with the optical element. An antireflective film 1 obtained by layering an intermediate layer 3, a silver-containing metal layer 4 containing silver, and a dielectric layer 5 in this order on a substrate 2, an anchor region 7 including an oxide of an anchor metal being provided between the silver-containing metal layer 4 and the intermediate layer 3, a cap region 9 including an oxide of the anchor metal included in the anchor region 7 being provided between the silver-containing metal layer 4 and the dielectric layer 5, the crystal grain size calculated by X-ray diffraction measurement in the silver-containing metal layer 4 being less than 6.8 nm, and the anchor metal having a surface energy less than that of silver and greater than the surface energy of the layer of the intermediate layer 3 closest to the silver-containing metal layer 4.

Inventors:
UMEDA, Kenichi (577 Ushijima, Kaisei-machi, Ashigarakami-gu, Kanagawa 77, 〒2588577, JP)
NAKAMURA, Seigo (577 Ushijima, Kaisei-machi, Ashigarakami-gu, Kanagawa 77, 〒2588577, JP)
ITAI, Yuichiro (577 Ushijima, Kaisei-machi, Ashigarakami-gu, Kanagawa 77, 〒2588577, JP)
YASUDA, Hideki (577 Ushijima, Kaisei-machi, Ashigarakami-gu, Kanagawa 77, 〒2588577, JP)
Application Number:
JP2017/031034
Publication Date:
March 08, 2018
Filing Date:
August 29, 2017
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
FUJIFILM CORPORATION (26-30, Nishiazabu 2-chome Minato-k, Tokyo 20, 〒1068620, JP)
International Classes:
G02B1/115; B32B9/00; B32B15/04; C23C14/06; G02B15/20
Attorney, Agent or Firm:
TAIYO, NAKAJIMA & KATO (3-17, Shinjuku 4-chome Shinjuku-k, Tokyo 22, 〒1600022, JP)
Download PDF: