Inductively powered lamp assembly
First Claim
1. - An inductively powered lamp assembly comprising:
- an inductive secondary to receive power from an inductive primary, said inductive primary having a reactance;
a lamp disposed in series with said secondary, said lamp having an impedance; and
a capacitor disposed in series with said inductive secondary and said lamp, said capacitor selected to have a reactance that is substantially equal to or slightly less than said impedance of said lamp and said reactance of said secondary, whereby said capacitor, said lamp and said secondary operate substantially at resonance.
1 Assignment
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Accused Products
Abstract
A lamp assembly configured to inductively receive power from a primary coil. The lamp assembly includes a lamp circuit including a secondary and a lamp connected in series. In a first aspect, the lamp circuit includes a capacitor connected in series with the lamp and the secondary to tune the circuit to resonance. The capacitor is preferably selected to have a reactance that is substantially equal to or slightly less than the reactance of the secondary and the impedance of the lamp. In a second aspect, the lamp assembly includes a sealed transparent sleeve that entirely encloses the lamp circuit so that the transparent sleeve is fully closed and unpenetrated. The transparent sleeve is preferably the lamp sleeve itself, with the secondary, capacitor and any desired starter mechanism disposed within its interior.
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Citations
60 Claims
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1. - An inductively powered lamp assembly comprising:
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an inductive secondary to receive power from an inductive primary, said inductive primary having a reactance;
a lamp disposed in series with said secondary, said lamp having an impedance; and
a capacitor disposed in series with said inductive secondary and said lamp, said capacitor selected to have a reactance that is substantially equal to or slightly less than said impedance of said lamp and said reactance of said secondary, whereby said capacitor, said lamp and said secondary operate substantially at resonance. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. - An inductively powered lamp assembly comprising:
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an inductive secondary to receive power from an inductive primary, said inductive secondary having a reactance;
a lamp disposed in series with said secondary, said lamp having an impedance that is substantially equal to said reactance of said secondary; and
a capacitor disposed in series with said secondary and said lamp, said capacitor having a reactance that is substantially equal to or slightly less than said impedance of said lamp and said reactance of said secondary. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 52, 53, 54)
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22. - An inductively powered lamp assembly comprising:
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a lamp circuit including;
an inductive secondary to receive power from an inductive primary; and
a lamp disposed in series with said secondary;
a transparent sleeve entirely enclosing said lamp circuit. - View Dependent Claims (23, 24, 25)
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26. - An inductively powered lamp assembly comprising:
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an electric-discharge lamp having a pair of electrodes;
a secondary to receive power from an inductive primary, each of said electrodes including a first lead electrically connected to said secondary; and
a magnetic starter switch operable between open and closed positions in response to a magnetic field, each of said electrodes including a second lead electrically connected to said magnetic starter switch, said magnetic starter switch shorting said electrodes across said secondary when in said closed position to preheat said lamp. - View Dependent Claims (27)
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28. - An inductively powered electric-discharge lamp assembly comprising:
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a lamp having a pair of electrodes and an electric-discharge gas contained within a lamp sleeve;
an inductive secondary to receive power from an inductive primary;
means for electrically connecting said secondary to at least one of said electrodes, whereby said secondary provides power to said electrode when subjected to an appropriate electromagnetic field generated by an inductive primary; and
wherein said secondary and said electrically connecting means are enclosed within said sleeve, whereby said lamp is self-contained with said sleeve being fully sealed and unpenetrated. - View Dependent Claims (29, 30)
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31. - An inductively powered incandescent lamp assembly comprising:
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an incandescent lamp having a filament contained within a lamp sleeve;
an inductive secondary to receive power from an inductive primary;
means for electrically connecting said secondary to said filament, whereby said secondary provides power to said filament when subjected to an appropriate magnetic field by an inductive primary; and
wherein said secondary and said electrically connecting means are enclosed within said sleeve, whereby said lamp is self-contained with said sleeve being fully sealed and unpenetrated. - View Dependent Claims (32)
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33. - An inductively powered electric-discharge lamp assembly comprising:
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first and second secondaries;
a lamp having first and second electrodes, said first electrode being electrically connected to said first secondary, said second electrode being electrically connected to said second secondary;
a capacitor connected in series between said first secondary and said second secondary; and
a starter means for preheating said electrodes, said starter means electrically connected in series between said first electrode and said second electrode. - View Dependent Claims (34, 35)
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36. - An inductively powered electric-discharge lamp assembly comprising:
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first and second secondaries;
a lamp having first and second electrodes, said first electrode being electrically connected to said first secondary, said second electrode being electrically connected to said second secondary;
a capacitor connected in series between said first electrode and said second electrode; and
first and second remotely operable switch means for preheating said electrodes, said first switch means electrically connected in series between said first electrode and said first secondary to selectively short said first electrode across said first secondary, said second switch means electrically connected in series between said second electrode and said second secondary to selectively short said second electrode across said second secondary. - View Dependent Claims (37, 38)
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39. - An inductively powered electric-discharge lamp assembly comprising:
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first and second secondaries;
a lamp having first and second electrodes, said first electrode being electrically connected to said first secondary, said second electrode being electrically connected to said second secondary;
a capacitor connected in series between said first electrode and said second electrode; and
first and second remotely operable switch means for preheating said electrodes, said first switch means electrically connected in series between said first electrode and said first secondary to selectively short said first electrode across said first secondary, said second switch means electrically connected in series between said second electrode and said second secondary to selectively short said second electrode across said second secondary. - View Dependent Claims (40, 41)
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42. - An inductively powered electric-discharge lamp assembly comprising:
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first and second secondaries;
a lamp having first and second electrodes, said first electrode being electrically connected to said first secondary, said second electrode being electrically connected to said second secondary;
first and second capacitors, said first capacitor connected in series between said first electrode and said first secondary, said second capacitor connected in series between said second electrode and said second secondary; and
first and second remotely operable switch means for preheating said electrodes, said first switch means electrically connected in series between said first electrode and said first secondary to selectively short said first electrode across said first secondary, said second switch means electrically connected in series between said second electrode and said second secondary to selectively short said second electrode across said second secondary. - View Dependent Claims (43, 44)
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45. - A method of manufacturing a lamp assembly comprising the steps of:
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connecting a lamp to an inductive secondary, connecting a capacitor in series with the lamp and the inductive secondary;
inserting the lamp, the capacitor, and the secondary into a structure; and
sealing the structure so that the lamp, the capacitor and the secondary do not penetrate the structure. - View Dependent Claims (46, 47, 48)
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49. - A method of manufacturing a lamp assembly comprising the steps of:
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connecting a lamp to an inductive secondary, the lamp having an impedance and the secondary having a reactance, connecting a capacitor in series with the lamp and the inductive secondary, the capacitor being selected to have a reactance that is substantially equal to or slightly less than the impedance of the lamp and the reactance of the secondary, whereby the capacitor, the lamp and the secondary operate substantially at resonance. - View Dependent Claims (50, 51)
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55. - A lamp assembly for an inductively powered lamp comprising:
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a base;
a lamp mounted to said base;
an outer sleeve mounted to said base about said lamp, said outer sleeve having a flange;
a flexible, resilient seal disposed between said base and said outer sleeve;
a locking ring fitted over said sleeve and secured to said base, said locking ring entrapping said flange to retain said outer sleeve in place on said base about said lamp. - View Dependent Claims (56, 57, 58, 59, 60)
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Specification