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Title:
METHOD FOR FUSING GLASS
Document Type and Number:
Japanese Patent JP2009263173
Kind Code:
A
Abstract:

To provide a method for fusing a glass member by which an area including both the initiation point of laser-beam irradiation and the ending point thereof can be inhibited from suffering residual stress.

In fusing a glass member 4 to a glass member 5 by irradiating a glass layer 3 with a laser beam L2 along a region R to be fused, wherein a crystallized area 8 formed in the glass layer 3 is taken as the irradiation-initiating point and the irradiation-ending point. Since the crystallized area 8 exhibits a laser absorptance lower than that of the glass layer 3, the glass layer 3 is gradually heated when the laser beam L2 is moved along the region R to be fused from the irradiation-initiating point, while the glass layer 3 is gradually cooled when the laser beam L2 is moved along the region R to be fused to the irradiation-ending point. By virtue of the above constitution, the area including both the initiation point of laser-beam L2 irradiation and the ending point thereof can be inhibited from suffering residual stress.


Inventors:
MATSUMOTO SATOSHI
Application Number:
JP2008115583A
Publication Date:
November 12, 2009
Filing Date:
April 25, 2008
Export Citation:
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Assignee:
HAMAMATSU PHOTONICS KK
International Classes:
C03C27/10
Domestic Patent References:
JP2006524419A2006-10-26
JP2005213125A2005-08-11
JP2004182567A2004-07-02
JPH02120259A1990-05-08
Attorney, Agent or Firm:
Yoshiki Hasegawa
Shiro Terasaki
Satoru Ishida
Kenichi Shibayama