WARPAGE MEASURING METHOD FOR GLASS PANE AND MANUFACTURING METHOD OF GLASS PANE

PROBLEM TO BE SOLVED: To measure a warping amount of a glass pane in a nondestructive and precise manner.SOLUTION: A glass pane 1 placed on a glass placement surface 2a of a machine platen 2 is irradiated with light, an optical path difference between interference light reflected on a rear side of t...

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description PROBLEM TO BE SOLVED: To measure a warping amount of a glass pane in a nondestructive and precise manner.SOLUTION: A glass pane 1 placed on a glass placement surface 2a of a machine platen 2 is irradiated with light, an optical path difference between interference light reflected on a rear side of the glass pane 1 and interference light reflected on the glass placement surface 2a is calculated using a spectral interference method, and thickness of an air layer between the rear side of the glass pane 1 and the glass placement surface 2a is measured as a warping amount of the glass pane 1.
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subjects CHEMISTRY
GLASS
MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
MEASURING
MEASURING ANGLES
MEASURING AREAS
MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS
METALLURGY
MINERAL OR SLAG WOOL
PHYSICS
TESTING
title WARPAGE MEASURING METHOD FOR GLASS PANE AND MANUFACTURING METHOD OF GLASS PANE
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