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Title: Laser sealed vacuum insulating window

Abstract

A laser sealed evacuated window panel is comprised of two glass panes held spaced apart in relation to each other by a plurality of spherical glass beads and glass welded around the edges to provide an evacuated space between the glass panes that is completely glass sealed from the exterior. The glass welded edge seal is obtained by welding the edges of the glass panes together with a laser beam while the glass panes and bead spacers are positioned in a vacuum furnace and heated to the annealing point of the glass to avoid stress fracture in the area of the glass weld. The laser welding in the furnace can be directed around the perimeter of the galss panel by a combination of rotating the glass panel and linearly translating or aiming the laser with a relay mirror.

Inventors:
;
Issue Date:
Research Org.:
Solar Energy Research Inst. (SERI), Golden, CO (United States)
OSTI Identifier:
5590551
Application Number:
ON: DE86013678
Assignee:
Dept. of Energy
DOE Contract Number:  
AC02-83CH10093
Resource Type:
Patent
Resource Relation:
Other Information: Portions of this document are illegible in microfiche products
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; 14 SOLAR ENERGY; GLASS; LASER WELDING; GLAZING; FABRICATION; WINDOWS; COVERINGS; JOINING; OPENINGS; WELDING; 320100* - Energy Conservation, Consumption, & Utilization- Buildings; 141000 - Solar Collectors & Concentrators

Citation Formats

Benson, D K, and Tracy, C E. Laser sealed vacuum insulating window. United States: N. p., 1985. Web.
Benson, D K, & Tracy, C E. Laser sealed vacuum insulating window. United States.
Benson, D K, and Tracy, C E. Mon . "Laser sealed vacuum insulating window". United States.
@article{osti_5590551,
title = {Laser sealed vacuum insulating window},
author = {Benson, D K and Tracy, C E},
abstractNote = {A laser sealed evacuated window panel is comprised of two glass panes held spaced apart in relation to each other by a plurality of spherical glass beads and glass welded around the edges to provide an evacuated space between the glass panes that is completely glass sealed from the exterior. The glass welded edge seal is obtained by welding the edges of the glass panes together with a laser beam while the glass panes and bead spacers are positioned in a vacuum furnace and heated to the annealing point of the glass to avoid stress fracture in the area of the glass weld. The laser welding in the furnace can be directed around the perimeter of the galss panel by a combination of rotating the glass panel and linearly translating or aiming the laser with a relay mirror.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1985},
month = {8}
}