IP Library › Granted Patent US 7,153,178
Granted Patent B2
US 7,153,178 · App. 10/977,443 · Granted Dec 26, 2006

Method of manufacturing a lamp assembly

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Quick Facts
Patent No.
US 7,153,178
App. No.
10/977,443
Granted
Dec 26, 2006
Kind
B2
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.

Claims (11)

1. A method of manufacturing a lamp assembly comprising the steps of:

connecting a lamp to an inductive secondary, the lamp having an impedance and the inductive 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 inductive secondary, whereby the capacitor, the lamp and the inductive secondary operate substantially at resonance.

2. The method of claim 1 wherein said lamp connecting step includes the steps of:

connecting a first end of a filament wire to a first lead of the inductive secondary;

connecting a second end of a filament wire to a first lead of the capacitor; and

connecting a second lead of the capacitor to a second lead of the inductive secondary.

3. The method of claim 1 wherein said lamp connecting step includes the steps of:

connecting a first lamp electrode to a first lead of the inductive secondary;

connecting a second lamp electrode to a first lead of the capacitor; and

connecting a second lead of the capacitor to a second lead of the inductive secondary.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 31, 2018
From: ACCESS BUSINESS GROUP INTERNATIONAL LLC
To: PHILIPS IP VENTURES B.V.
Reel/Frame 045644/0810 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 3, 2005
From: BAARMAN, DAVID W.
To: ACCESS BUSINESS GROUP INTERNATIONAL LLC
Reel/Frame 015639/0768 →