Method to press and shear heavy wall metal halide lamps

Details Method to press and shear heavy wall metal halide lamps Method to press and shear heavy wall metal halide lamps

1990-07-31

1992-03-03

Seidel, Richard K.

Electric lamp or space discharge component or device manufacturi

Process

Combined, e.g., with shaping of lamp or device envelope

65 5925, 65105, 445 26, H01J 926, H01J 932, H01J 940

Patent

active

050928040

ABSTRACT:
A method to press mold heavy wall metal halide lamps (with reduced glass mass in end seals) is disclosed. Wall temperature in a metal halide lamp may be normalized by varying the wall thickness in relation to the heat falling on the interior surface, and the heat lost through the exterior surface. Increasing the wall thickness, acts to spread the heat, and decrease the wall temperature. Thinning the wall, acts to concentrate the heat, and increase the wall temperature. By press molding the lamp glass and simultaneously reducing the glass mass in the end seals, the desired wall thickness may be obtained without excessive heat loss in the end seals to result in an isothermal internal profile.

REFERENCES:
patent: 1945769 (1934-02-01), Brumley
patent: 2391572 (1945-12-01), Herzog
patent: 2391573 (1945-12-01), Herzog

Affiliated with

Also associated with

Rating

Method to press and shear heavy wall metal halide lamps does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method to press and shear heavy wall metal halide lamps, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method to press and shear heavy wall metal halide lamps will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-268938