Title:
SPECTACLE LENS
Document Type and Number:
WIPO Patent Application WO/2014/051151
Kind Code:
A1
Abstract:
One embodiment of the present invention relates to a spectacle lens having a lens substrate and a vapour deposited film that is either directly or indirectly on the lens substrate, wherein, in a planar image taken by means of a transmission electron microscope, the average grain size observed in the vapour deposited film is at least 3.5nm, and the vapour deposited film is an oxide film of a metal selected from the group consisting of zirconium and tantalum, in which the proportion occupied by grain boundaries demarcating the boundaries between the grains and the regions outside of the grains is less than 15%.
Inventors:
TADOKORO NOBUYUKI (JP)
OGAWA NAOMI (JP)
ADACHI MAKOTO (JP)
KOMINE YUKO (JP)
HARADA KOUSHI (JP)
OGAWA NAOMI (JP)
ADACHI MAKOTO (JP)
KOMINE YUKO (JP)
HARADA KOUSHI (JP)
Application Number:
PCT/JP2013/076601
Publication Date:
April 03, 2014
Filing Date:
September 30, 2013
Export Citation:
Assignee:
HOYA CORP (JP)
International Classes:
G02B1/10; B32B9/00; C23C14/08; G02B1/11; G02C7/00; G02C7/02
Foreign References:
| JP2007127681A | 2007-05-24 | |||
| JP2011013654A | 2011-01-20 | |||
| JP2010102157A | 2010-05-06 | |||
| JP2011017949A | 2011-01-27 | |||
| JP2006065038A | 2006-03-09 | |||
| JP2012128135A | 2012-07-05 | |||
| JP2009193022A | 2009-08-27 |
Other References:
See also references of EP 2902815A4
Attorney, Agent or Firm:
SIKs & Co. (JP)
Patent business corporation patent firm Sykes (JP)
Patent business corporation patent firm Sykes (JP)
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