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US 6,676,472 B1Granted
Lamp envelope with integrated optics
AssigneeCorning Incorporated
InventorJackson P. Trentelman
Life of this patent
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Abstract
A glass envelope for a light-emitting device, a device embodying the envelope, and the method of making the glass envelope by laminating two sheets of glass, one sheet having a continuous channel formed therein, and the other sheet having one or more optical elements formed therein.
Claims6
A method of making a glass envelope for a light emitting device which comprises:
- (a) depositing a first sheet of molten glass on a mold having a surface contour that includes a continuous channel enclosed by a peripheral portion of the surface,
- (b) forming a continuous channel in the first sheet of glass that substantially corresponds to the channel in the mold,
- (c) depositing a second sheet of glass over the channel in the first sheet and in contact with the peripheral portion of the surface,
- (d) forming an optical element in the second glass sheet that is in registry with at least a portion of the channel in the first glass sheet, and
- (e) hermetically joining the two glass sheets to enclose the channel of the first sheet.
2 more elements
Dependencies are inferred from the claim text.