Pulsed light source

Details Pulsed light source Pulsed light source

1988-06-27

1991-08-27

Razavi, Michael

Electric lamp and discharge devices: systems

Pulsating or a.c. supply

315219, 315209R, 313 25, 313163, H05B 4116

Patent

active

050436341

ABSTRACT:
A pulsed light source includes a sealed, ultraviolet-transmissive lamp tube defining a discharge region containing a rare gas or a mixture of rare gases, anode and cathode electrodes sealed into the lamp tube at opposite ends, leads for connecting the electrodes to a pulsed source of electrical energy and a phosphor material located on a surface external to the discharge region. The lamp tube contains mercury in sufficient quantity to cover the cathode electrode when the lamp tube is oriented with the cathode electrode at the bottom. The cathode electrode is protected by the mercury from sputtering that results from ion bombardment. The mercury emits pulsed ultraviolet radiation which stimulates emission of visible light by the phosphor material. Lamp tube pressure is below 200 torr. The light source is operable over a range of pulse widths and duty cycles. The color of light emission is determined by the phosphor. The phosphor can be located on the outer surface of the lamp tube or on a separate glass sleeve.

REFERENCES:
patent: 1042565 (1912-10-01), Kroner
patent: 1064115 (1913-06-01), Weintraub
patent: 2902618 (1959-09-01), Lang et al.
patent: 4065688 (1977-12-01), Thornton
patent: 4173728 (1979-11-01), Witting
patent: 4245155 (1981-01-01), Witting

Affiliated with

Also associated with

Rating

Pulsed light source does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pulsed light source, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pulsed light source will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1416833