Fast start induction RF fluorescent lamp with burst-mode dimming
First Claim
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1. An induction RF fluorescent lamp, comprising:
- a lamp envelope filled with a gas mixture at less than typical atmospheric pressure, wherein the lamp envelope comprises a first metallic structure for forming an amalgam with mercury and a second metallic structure to aid in the electrical breakdown of the working gas mixture, the first and second metallic structures promoting the rapid development of luminosity of the induction RF fluorescent lamp during a turn-on phase;
a power coupler comprising at least one winding of an electrical conductor; and
an electronic ballast providing appropriate voltage and current to the power coupler, the electronic ballast comprising a burst-mode dimming facility,wherein the burst-mode dimming facility periodically interrupts the high frequency voltage and current to the power coupler in order to reduce the power being delivered to the power coupler.
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Abstract
A fast starting induction RF fluorescent lamp capable of changing illumination level through a burst-mode dimming facility, comprising a dimming facility enabling the induction RF fluorescent lamp to dim in response to a control signal, and with structures within the bulb envelope that facilitate rapid luminous development during a turn-on phase.
115 Citations
19 Claims
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1. An induction RF fluorescent lamp, comprising:
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a lamp envelope filled with a gas mixture at less than typical atmospheric pressure, wherein the lamp envelope comprises a first metallic structure for forming an amalgam with mercury and a second metallic structure to aid in the electrical breakdown of the working gas mixture, the first and second metallic structures promoting the rapid development of luminosity of the induction RF fluorescent lamp during a turn-on phase; a power coupler comprising at least one winding of an electrical conductor; and an electronic ballast providing appropriate voltage and current to the power coupler, the electronic ballast comprising a burst-mode dimming facility, wherein the burst-mode dimming facility periodically interrupts the high frequency voltage and current to the power coupler in order to reduce the power being delivered to the power coupler. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification