Vacuum-insulated glass windows with glass-bump spacers
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
E06B-003/00
E04C-002/54
E06B-003/663
E06B-003/66
출원번호
US-0265192
(2008-11-05)
등록번호
US-8821999
(2014-09-02)
발명자
/ 주소
Grzybowski, Richard R
Harvey, Daniel R
Logunov, Stephan Lvovich
Ricoult, Daniel Louis Gabriel
Streltsov, Alexander Mikhailovich
출원인 / 주소
Corning Incorporated
대리인 / 주소
Hardee, Ryan T.
인용정보
피인용 횟수 :
13인용 특허 :
10
초록▼
Vacuum-insulated glass (VIG) windows (10) that employ glass-bump spacers (50) and two or more glass panes (20) are disclosed. The glass-bump spacers are formed in the surface (24) of one of the glass panes (20) and consist of the glass material from the body portion (23) of the glass pane. Thus, the
Vacuum-insulated glass (VIG) windows (10) that employ glass-bump spacers (50) and two or more glass panes (20) are disclosed. The glass-bump spacers are formed in the surface (24) of one of the glass panes (20) and consist of the glass material from the body portion (23) of the glass pane. Thus, the glass-bump spacers are integrally formed in the glass pane, as opposed to being discrete spacer elements that need to be added and fixed to the glass pane. Methods of forming VIG windows are also disclosed. The methods include forming the glass-bump spacers by irradiating a glass pane with a focused beam (112F) from a laser (110). Heating effects in the glass cause the glass to locally expand, thereby forming a glass-bump spacer. The process is repeated at different locations in the glass pane to form an array of glass-bump spacers. A second glass pane is brought into contact with the glass-bump spacers, and the edges (28F, 28B) sealed. The resulting sealed interior region (40) is then evacuated to a vacuum pressure of less than one atmosphere.
대표청구항▼
1. A vacuum-insulated glass (VIG) window, comprising: a first glass pane having a first body formed from a first glass material and having first opposite surfaces and a first outer edge;a second glass pane spaced apart from and disposed substantially parallel to the first glass pane at a first dista
1. A vacuum-insulated glass (VIG) window, comprising: a first glass pane having a first body formed from a first glass material and having first opposite surfaces and a first outer edge;a second glass pane spaced apart from and disposed substantially parallel to the first glass pane at a first distance and having a second body formed from a second glass material and having second opposite surfaces and a second outer edge;a first edge seal formed around at least respective portions of the first and second outer edges so as to define a first sealed interior region between the first and second glass panes, wherein the first sealed interior region has a vacuum pressure of less than one atmosphere; anda first plurality of glass-bump spacers formed from the first glass pane from one of the first surfaces and consisting of the first glass material from the first body portion, and contacting the second glass pane so as to maintain said spaced apart first distance, wherein the other of the first surfaces in respective regions opposed to the first plurality of glass-bump spacers is substantially planar or comprises a further glass-bump spacer,wherein the first plurality of glass-bump spacers are formed by irradiating the first glass pane at locations on one of the first surfaces with a laser beam. 2. The VIG window of claim 1, wherein the first glass-bump spacers include respective substantially flat top portions that contact one of the second glass pane second surfaces. 3. The VIG window of claim 1, wherein the first glass-bump spacers have a bump height H defined by 75 μm≦H≦225 μm. 4. The VIG window of claim 3, wherein the bump height II is defined by 100 μm≦H≦170 μm. 5. The VIG window of claim 1, wherein the first and second glass materials are the same. 6. The VIG window of claim 1, wherein the first and second glass panes have respective thicknesses that are substantially the same. 7. The VIG window of claim 1, farther comprising: a third glass pane spaced apart from and disposed substantially parallel to the first glass pane in a side opposite the second glass pane and at a second distance, the third glass pane having a third body formed from a third glass material and having third opposite surfaces and a third outer edge;wherein either a) the first edge seal further surrounds at least a portion of the third outer edge to further define, between the first and third glass panes, a second sealed interior region having a vacuum pressure of less than one atmosphere, or b) a second edge seal surrounds at least respective portions of the first and third outer edges to further define, between the first and third glass panes, a second sealed interior region having a vacuum pressure of less than one atmosphere; anda second plurality of glass-bump spacers formed integrally in the first glass pane in the surface opposite that having the first plurality of glass--hump spacers, the second plurality of glass-hump spacers consisting of glass material from the first body portion, and contacting the third glass pane so as to maintain said spaced apart second distance. 8. The VIG window of claim 7, wherein the first, second and third glass materials are the same. 9. The VIG window of claim 1, further comprising: a third glass pane spaced apart from and disposed substantially parallel to the first glass pane in a side opposite the second glass pane and at a second distance, the third glass pane having a third body thrilled from a third glass material and having third opposite surfaces and a third outer edge, with a second plurality of glass-bump spacers formed integrally in the third glass pane in the third surface adjacent the first glass pane, the second plurality of glass-bump spacers consisting of glass material from the third body, and contacting the first glass pane so as to maintain said spaced apart second distance; andwherein either a) the first edge seal further surrounds at least a portion of the third outer edge to further define, between the first and third glass panes, a second sealed interior region having a vacuum pressure of less than one atmosphere, or b) a second edge seal surrounds at least respective portions of the first and third outer edges to further define, between the first and third glass panes, a second sealed interior region having a vacuum pressure of less than one atmosphere. 10. The VIG window of claim 9, wherein the first, second and third glass materials are the same. 11. A vacuum-insulated glass (VIG) window product formed by the process comprising: providing a first glass pane having a first body portion with a first surface and a first edge and comprising a first glass material;forming from the first glass pane first surface a plurality of glass-bump spacers that consist of the first glass material from the first body portion such that a first glass pane second surface remains substantially planar or convex following the forming in the first surface;bringing a second glass pane having a second surface and a second edge and comprising a second glass material in contact with the glass-bump spacers so that the first and second glass panes are spaced apart by a first distance between the first and second surfaces;sealing the first and second edges to define an interior region between the first and second glass panes;forming a vacuum pressure of less than one atmosphere in the interior region,wherein the step of forming further comprises a) irradiating the first glass pane at a location with a laser beam from a laser, wherein the laser beam passes through the first glass pane and has its focal point located outside of the first body portion and adjacent the first glass pane first surface; and terminating the irradiating to fix the glass-bump spacer; andb) repeating act a) a plurality of times for different locations to form the plurality of glass-bump spacers. 12. The VIG window product of claim 11, wherein the process further comprises: positioning a growth-limiting surface adjacent the first glass pane surface and growing the glass-bump spacers into the growth-limiting surface, thereby providing the plurality of glass-bump spacers with substantially flat top portions. 13. The VIG window product of claim 11, wherein the process further comprises: providing the focused laser beam with light pulses having a temporal pulse width τP defined by 20 ns≦τP≦80 ns, and a repetition rate R defined by 100 kHz≦R≦200 kHz. 14. The VIG window product of claim 11, wherein the process further comprises: generating from the laser one of an ultraviolet-wavelength beam and a mid-infrared-wavelength beam. 15. The VIG window of claim 1, wherein the first and second glass panes are optically transparent. 16. The VIG window of claim 7 or 9, wherein the third glass pane is optically transparent. 17. The VIG window product of claim 11, wherein the first and second glass panes are optically transparent.
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이 특허에 인용된 특허 (10)
Partanen Jouni P. ; Hug William F., Apparatus and method for forming three-dimensional objects in stereolithography utilizing a laser exposure system havin.
Grzybowski, Richard Robert; Harvey, Daniel Ralph; Logunov, Stephan Lvovich; Ricoult, Daniel Louis Gabriel; Streltsov, Alexander Mikhailovich, Vacuum-insulated glass windows with glass-bump spacers.
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