Discharge lamp with enhanced performance and improved containmen

Details Discharge lamp with enhanced performance and improved containmen Discharge lamp with enhanced performance and improved containmen

1994-12-06

1996-08-27

Patel, Nimeshkumar D.

Electric lamp and discharge devices

With temperature modifier

Double wall, jacket or casing for envelope

313634, 313635, 313573, H01J 6134, H01J 6118

Patent

active

055504213

ABSTRACT:
A metal halide arc discharge lamp comprising: an arc tube containing an arc generating and sustaining medium and having first and second electrodes sealed at opposite ends thereof; an outer envelope surrounding said arc tube and having first and second terminals for electrical connection thereto; an electrical connector coupling said first electrode to said first terminal; an electrical connector coupling said second electrode to said second terminal; a heat reflecting coating on at least one end of said arc tube; a starting aid operatively associated with said arc tube; and a light transmissive shroud positioned about said arc tube on at least two sides thereof; said arc tube having a given wall thickness of about 0.5 mm and said shroud having a thickness greater than said given thickness, the ratio of said shroud wall thickness to said arc tube wall thickness being about 2. The lamp has an increased CRI over lamps made with thicker-walled arc tubes and the thinner arc tube material allows the use of 1 mm thick shrouds which still provide containment in the event of an arc tube burst.

REFERENCES:
patent: 4170746 (1979-10-01), Daveport et al.
patent: 4281274 (1981-07-01), Bechard et al.
patent: 4499396 (1985-02-01), Fohl et al.
patent: 4709184 (1987-11-01), Keeffe et al.
patent: 4888517 (1989-12-01), Keeffe et al.

Affiliated with

Also associated with

Rating

Discharge lamp with enhanced performance and improved containmen does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Discharge lamp with enhanced performance and improved containmen, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Discharge lamp with enhanced performance and improved containmen will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1057988