Method and apparatus for controlling fluorescent lamp mercury va

Details Method and apparatus for controlling fluorescent lamp mercury va Method and apparatus for controlling fluorescent lamp mercury va

1991-04-12

1993-07-20

McGraw, Vincent P.

Optics: measuring and testing

By monitoring of webs or thread

356316, 355 30, 313 28, 31511101, 315116, 315117, 315118, G01N 2184

Patent

active

052298426

ABSTRACT:
A fluorescent lamp light output is maximized by cooling the cathode regions. Mercury vapor pressure is maintained at an optimum or desired level for light production by cooling the cathode areas of the lamp. The cooled cathode areas of the lamp collect cathode emissive material and mercury vapor condensates. Thus, the light output remains uniform and constant. The functional length of the lamp is not degraded by the deposition of either cathode material or mercury vapor condensates. Cooling can be effected by forcing cool air against the exterior of the lamp adjacent the cathodes or by using forced water heat exchangers. By cooling the respective cathode regions equally, the amount of deposition in the respective regions is substantially the same. Thus, gradations of deposition are avoided. The constant high output fluorescent lamp can be used with electronic inspection equipment and machine vision measurement devices. The inspection equipment and machine vision devices can detect signals with a single photodetector or an array of photodetectors. Optical fiber receivers and transmitters can be used to deliver a reflected light signal or image to associated electronic processing equipment.

REFERENCES:
patent: 1435192 (1922-11-01), Anderson
patent: 4772128 (1988-03-01), Vinarub et al.
patent: 5073796 (1991-12-01), Suzuki et al.
GTE-Sylvania Brochure-Engineering Bulletin-0-341 Fluorescent Lamps.

Affiliated with

Also associated with

Rating

Method and apparatus for controlling fluorescent lamp mercury va 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 and apparatus for controlling fluorescent lamp mercury va, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for controlling fluorescent lamp mercury va will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1764631