Sealed beam lamp of borosilicate glass with a sealing glass of z

Details Sealed beam lamp of borosilicate glass with a sealing glass of z Sealed beam lamp of borosilicate glass with a sealing glass of z

1979-02-12

1980-12-09

Segal, Robert

Electric lamp and discharge devices

With optical device or special ray transmissive envelope

Reflector

106 53A, 106 53C, 65 33, 65155, 220 21A, C03C 308, H01J 524

Patent

active

042387043

ABSTRACT:
A composite article is disclosed which embodies a thermally sensitive component enclosed within borosilicate glass bodies having a coefficient of thermal expansion in the range of 30 to 40.times.10.sup.-7 /.degree. C. The bodies are joined by an intermediate layer of sealing material which is a fused mixture of a sealing glass containing an infra-red absorbing oxide and a mill additive having a low coefficient of thermal expansion. There is further disclosed a method of forming the seal between the glass bodies by application of infra-red radiation to the sealing material.

REFERENCES:
patent: 2517019 (1950-08-01), Nordberg
patent: 2643020 (1953-06-01), Dalton
patent: 2889952 (1959-06-01), Claypoole
patent: 3010045 (1961-11-01), Plagge et al.
patent: 3113878 (1963-12-01), Martin
patent: 3217088 (1965-11-01), Steierman
patent: 3250631 (1966-05-01), Lusher
patent: 3258350 (1966-06-01), Martin et al.
patent: 3442993 (1969-05-01), Yamamoto et al.
patent: 3632324 (1972-01-01), Sasaki et al.
patent: 3660064 (1972-05-01), Rohde
patent: 4125890 (1978-11-01), Nixon

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