Patent ID: 6987359
Filing Date: 2006-01-17
Classification: C03C,H01J

Abstract:
1. A component assembly for hermetically sealing and affixing the component to a lamp envelope of a lighting device, comprising the component to be sealed with the lamp envelope and a solder glass preform enclosing and bonded to the portion of the component to be hermetically sealed and affixed to the glass lamp envelope, wherein the lamp envelope is made of a borosilicate glass having a CTE C 1 from 0 to 300° C. in the range of 30–45×10 −7 ° C. −1 and the solder glass has a before-sealing softening point T s over 500° C., an after-sealing CTE C 2 from 0 to 300° C. in the range of C 1 ±10×10 −7 ° C. −1 , and is capable of forming a hermetic sealing of the component with the lamp envelope upon being heated to a temperature over its before-sealing softening point.