Title:
OPTICAL ARTICLE PROVIDED WITH HIGH-STRENGTH HARD COAT LAYER
Document Type and Number:
WIPO Patent Application WO/2014/034938
Kind Code:
A1
Abstract:
One embodiment of the present invention relates to an optical article which comprises an optical base, a hard coat layer arranged on the optical base directly or with another layer interposed therebetween, an antireflective layer arranged on the hard coat layer, and a stain-proof layer arranged on the antireflective layer, wherein the load at which the antireflective layer begins to be delaminated is larger than 50 gf when a friction/abrasion test is carried out on the surface of the stain-proof layer under the conditions of a scratching rate of 0.1 mm/sec and a load increasing rate of 0.15 gf/sec using a diamond needle having a tip diameter of 0.03 mm.
Inventors:
HOSHINO YUTA (JP)
KUTSUKAKE YUSUKE (JP)
SUGIHARA YOSUKE (JP)
KUTSUKAKE YUSUKE (JP)
SUGIHARA YOSUKE (JP)
Application Number:
PCT/JP2013/073589
Publication Date:
March 06, 2014
Filing Date:
September 02, 2013
Export Citation:
Assignee:
HOYA LENS MFG PHILIPPINES INC (PH)
HOSHINO YUTA (JP)
KUTSUKAKE YUSUKE (JP)
SUGIHARA YOSUKE (JP)
HOSHINO YUTA (JP)
KUTSUKAKE YUSUKE (JP)
SUGIHARA YOSUKE (JP)
International Classes:
G02B1/11; B32B7/02; B32B9/00
Domestic Patent References:
| WO2007026529A1 | 2007-03-08 |
Foreign References:
| JP2010235783A | 2010-10-21 | |||
| JPH10135206A | 1998-05-22 | |||
| JPH11302832A | 1999-11-02 | |||
| JP2007248998A | 2007-09-27 |
Other References:
See also references of EP 2891907A4
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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