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Patent Searching and Data


Title:
ANTIREFLECTION FILM AND OPTICAL MEMBER HAVING THE SAME
Document Type and Number:
Japanese Patent JP2011141339
Kind Code:
A
Abstract:

To provide an antireflection film having efficient durability, an antireflection characteristics having a maximum reflectance of at most 0.2% even in consideration of a variation in production at a wavelength of 400-700 nm, and spectral reflection characteristics which are excellent in production stability.

The antireflection film comprises SiO2 and TiO2 which alternately overlap one another to form eleven layers on a base board having a refractive index of 1.4-2.2 at a wavelength of 550 nm, wherein the SiO2 and TiO2 are alternately, sequentially arranged in this order from the base board side. In this case, the uppermost layer is a SiO2 layer, and the whole physical film thickness is 500-630 nm.


Inventors:
FUJII HIDEO
TAKETOMO HIROKI
Application Number:
JP2010000786A
Publication Date:
July 21, 2011
Filing Date:
January 05, 2010
Export Citation:
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Assignee:
HOYA CORP
International Classes:
G02B1/11; C23C14/08; G02B1/115; G02B1/14
Domestic Patent References:
JP2008135127A2008-06-12
JP2002014203A2002-01-18
Attorney, Agent or Firm:
Takaishi Tachibana