Glass manufacturing – Processes – Reshaping or surface deformation of glass preform
Patent
1996-08-22
1998-10-13
Silverman, Stanley S.
Glass manufacturing
Processes
Reshaping or surface deformation of glass preform
65110, 65111, 65117, 65262, 65285, 65300, 117 43, 117904, C03B 23035
Patent
active
058206507
ABSTRACT:
A glass substrate is positioned between a chamber with a reduced pressure and a chamber filled with a heated helium, and the glass substrate is forcibly bent by the pressure difference and the heated helium gas into a uniform shape. The irradiation of laser light is carried out in this state to compensate the difference of annealing effects due to fine difference of deformation of the respective glass substrates.
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Semiconductor Energy Laboratory Co,. Ltd.
Silverman Stanley S.
Vincent Sean
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