Title:
METHODS OF SEPARATING A GLASS WEB
Document Type and Number:
WIPO Patent Application WO/2018/175193
Kind Code:
A3
Abstract:
Methods of separating a glass web include exposing a separation path on the glass web to a laser beam that produces thermal stress along the separation path without damaging the glass web. The methods further include redirecting a portion of the laser beam to create a defect on the separation path while the separation path is under thermal stress produced during the exposing the separation path on the glass web to the laser beam, whereupon the glass web separates along the separation path in response to creating the defect. Apparatus are further provided for separating a glass web with at least one laser beam generator that produces a laser beam to heat a separation path and a mirror configured to reflect an end portion of the laser beam to create a defect at a location of the separation path on the glass web.
Inventors:
ABRAMOV ANATOLI (US)
STEWART CRAIG (US)
STEWART CRAIG (US)
Application Number:
PCT/US2018/022606
Publication Date:
November 15, 2018
Filing Date:
March 15, 2018
Export Citation:
Assignee:
CORNING INC (US)
International Classes:
C03B33/09; C03B33/02
Domestic Patent References:
| WO2016081330A1 | 2016-05-26 | |||
| WO2014209833A1 | 2014-12-31 |
Foreign References:
| KR100918124B1 | 2009-09-17 | |||
| US20090320524A1 | 2009-12-31 | |||
| EP1341730B1 | 2005-08-10 |
Attorney, Agent or Firm:
ABLE, Kevin, M (US)
Download PDF:
Previous Patent: EARBUD FRAME FOR ACOUSTIC DRIVER AND COMPLIMENTARY EAR TIP
Next Patent: PRECISION HIGH FREQUENCY PHASE ADDERS
Next Patent: PRECISION HIGH FREQUENCY PHASE ADDERS