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FLEXIBLE HEATER TAPE FOR FLUORESCENT LAMPS

IP.com Disclosure Number: IPCOM000024833D
Original Publication Date: 1982-Jun-30
Included in the Prior Art Database: 2004-Apr-04
Document File: 2 page(s) / 46K

Publishing Venue

Xerox Disclosure Journal

Abstract

Conventional heater sleeves of resin impregnated cloth with etched circuit or wire elements have been used with fluorescent lamps to heat the lamp wall envelope to a temperature at which the lamp is at or near the peak of its temperature/light output curve. Additionally, the heater sleeve helps to preserve a single cold spot on the lamp, a condition essential to maintain lamp stability by reducing mercury migration within the lamp. An improved heater sleeve for performing these functions can be constructed of an etched circuit heater laminated to a flexible, semi-transparent or opaque material such as Mylar or Kaptan and coated with a pressure sensitive adhesive. The heater adheres directly to the lamp wall and provides better heat conduction to the lamp surface. It also constitutes a significantly less expensive alternative to the resin impregnated cloth design. Aperture cutouts may be made in the heater to facilitate formation of an optimized Vold spot" or to provide additional lighted lamp areas.

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(EROX DISCLOSURE JOURNAL

Proposed Classification
U.S. C1. 313/11 Int. C1. HOlj 1/02

Conventional heater sleeves of resin impregnated cloth with etched circuit or wire elements have been used with fluorescent lamps to heat the lamp wall envelope to a temperature at which the lamp is at or near the peak of its temperature/light output curve. Additionally, the heater sleeve helps to preserve a single cold spot on the lamp, a condition essential to maintain lamp stability by reducing mercury migration within the lamp. An improved heater sleeve for performing these functions can be constructed of an etched circuit heater laminated to a flexible, semi-transparent or opaque material such as Mylar or Kaptan and coated with a pressure sensitive adhesive. The heater adheres directly to the lamp wall and provides better heat conduction to the lamp surface. It also constitutes a significantly less expensive alternative to the resin impregnated cloth design. Aperture cutouts may be made in the heater to facilitate formation of an optimized Vold spot" or to provide additional lighted lamp areas.

Volume 7 Number 3 May/June 1982 137

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138 XEROX DISCLOSURE JOURNAL

Volume 7 Number 3 May/June 1982

[This page contains 1 picture or other non-text object]