Title:
GLASS PLATE, METHOD FOR INSPECTING END SURFACE OF GLASS PLATE, AND METHOD FOR MANUFACTURING GLASS PLATE
Document Type and Number:
WIPO Patent Application WO/2018/207533
Kind Code:
A1
Abstract:
The present invention is provided with, in said order: a first observation step for enlarging and observing a specific region (R) of a polished surface (S1a) formed on an end surface (S1) of a glass plate (S) to be inspected, and acquiring a first enlarged image; a cleaning step for cleaning the specific region (R) while applying an external stimulus to the specific region (R);
a second observation step for once again enlarging and observing the specific region (R), and acquiring a second enlarged image; and an evaluation step for comparing the first enlarged image and the second enlarged image and counting the number of fine recessed parts newly formed inside the specific region (R) after the first observation step.
Inventors:
TSUNODA KEI (JP)
OKU HAYATO (JP)
ITOH SHO (JP)
TAWADA YU (JP)
OKU HAYATO (JP)
ITOH SHO (JP)
TAWADA YU (JP)
Application Number:
PCT/JP2018/015024
Publication Date:
November 15, 2018
Filing Date:
April 10, 2018
Export Citation:
Assignee:
NIPPON ELECTRIC GLASS CO (JP)
International Classes:
C03C23/00; G01N23/225; G02F1/13; G02F1/1333
Domestic Patent References:
| WO2014103283A1 | 2014-07-03 |
Foreign References:
| JP2015187042A | 2015-10-29 | |||
| JP2012217909A | 2012-11-12 | |||
| JP2009300313A | 2009-12-24 | |||
| JPH02151749A | 1990-06-11 | |||
| JP2011002253A | 2011-01-06 | |||
| JP2001050907A | 2001-02-23 |
Attorney, Agent or Firm:
SHIROMURA Kunihiko et al. (JP)
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