Dimpled glass bumps on glass articles and methods of forming the same
AssigneeCorning Incorporated
InventorsDavid Mark Lance, Alexander Mikhailovich Streltsov
Life of this patent
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Abstract
A glass article having a dimpled glass bump formed integrally thereon by laser-irradiation methods. The glass bump includes a lower region connected to an upper region by an inflection region. The lower region projects from a surface of the glass article and is defined by concavely rounded sides with a radius of curvature R1. The upper region includes a transition portion and a top surface. The transition portion is defined by convexly rounded sides with a radius of curvature R2. The transition portion connects to the lower portion via the inflection region. The upper portion connects to the transition portion and is defined by a concavely rounded top portion between convexly rounded top portions.
Claims28
A glass article comprising a glass article surface and a dimpled glass bump extending from the glass article surface, the dimpled glass bump comprising:
- a lower region comprising a diameter D1 defined by concavely rounded sides comprising a radius of curvature R1, wherein the concavely rounded sides join with the glass article surface and the lower region projects from the glass article surface;
- and
- an inflection region connecting the lower region of the dimpled glass bump and an upper region of the dimpled glass bump;
- and
- the upper region of the dimpled glass bump comprises a transition portion and a top surface, wherein:
- the transition portion comprises a diameter D2 defined by convexly rounded sides comprising a radius of curvature R2;
- the diameter D2 is less than the diameter Dl;
- the top surface comprises a diameter D3 defined by a concavely rounded top portion disposed between convexly rounded top portions;
- the convexly rounded top portions join with the convexly rounded sides converging from the transition portion;
- the diameter D3 is less than the diameter D2;
- and
- the convexly rounded top portions are spaced apart from the glass article surface, thereby defining a height H of the dimpled glass bump.
A dimpled glass bump formed on a glass pane surface of a glass pane, the dimpled glass bump comprising:
- a lower region comprising a diameter D1 defined by concavely rounded sides, wherein the lower region projects from the glass pane surface, wherein the concavely rounded sides have a radius of curvature R1 and join with the glass pane surface;
- an inflection region connecting the lower region of the dimpled glass bump and an upper region of the dimpled glass bump;
- the upper region comprising a transition portion and a top surface, wherein:
- the transition portion comprises a diameter D2 defined by convexly rounded sides, wherein the convexly rounded sides have a radius of curvature R2 and the diameter D2 is less than diameter D1;
- and
- the top surface comprise a diameter D3 defined by a concavely rounded top portion positioned between convexly rounded top portions, the convexly rounded top portions joining with the convexly rounded sides, wherein the diameter D3 is less than the diameter D2 and the convexly rounded top portions are spaced apart from the glass article surface thereby defining a height H of the dimpled glass bump.
Dependencies are inferred from the claim text.