IP Library Granted Patent US 8,944,630
Granted Patent B2
US 8,944,630 · App. 13/512,498 · Granted Feb 3, 2015

Linear lamp

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Quick Facts
Patent No.
US 8,944,630
App. No.
13/512,498
Granted
Feb 3, 2015
Kind
B2
Abstract

A linear lamp having a longitudinal bulb, in particular a glass bulb, wherein at least one socket is provided for electrical contacting and mounting of the linear lamp, and wherein at least one light-emitting diode is disposed in the bulb as a luminous element.

Claims (19)

1. A linear lamp comprising:

a longitudinal glass bulb;

at least one socket provided for electrically contacting and mounting of the linear lamp;

a longitudinal printed circuit board housed within the glass bulb;

at least one light-emitting diode disposed on an upper diode side of the printed circuit board; and

at least two heat sinks, each heat sink being disposed at a longitudinal end section of the printed circuit board and within the glass bulb, each heat sink comprising a holding limb disposed on a lower side of the printed circuit board and fixed to the printed circuit board, the holding limb comprising:

at least two projecting holding arms attached to side edges of the holding limb, the at least two holding arms clamping the printed circuit board in position within the glass bulb and supported against an inner lateral surface of the glass bulb, and

a support arm attached to a transverse edge of the holding limb, the support arm clamping the printed circuit board in position within the glass bulb and supported against an inner bottom surface of the glass bulb.

2. The linear lamp of claim 1 , wherein the glass bulb is filled with a filling gas.

3. The linear lamp of claim 2 , wherein the filling gas is helium.

4. The linear lamp of claim 1 , further comprising electronic components for powering and controlling the light-emitting diodes, the electronic components being disposed on the lower side of the printed circuit board.

5. The linear lamp of claim 4 , wherein, compared to the diode side, the lower side is disposed closer to the inner bottom surface of the glass bulb.

6. The linear lamp of claim 1 , wherein the support arm comprises a V section with an opening embodied in a section approximately tapering toward the printed circuit board through which a power supply for the printed circuit board can be guided and is fixed in a displacement direction away from the printed circuit board through the opening.

7. The linear lamp of claim 1 , wherein the light-emitting diodes are disposed in at least one diode row extending parallel to the longitudinal axis of the lamp.

8. The linear lamp of claim 7 , wherein two diode rows extending at parallel distance to each other are provided.

9. The linear lamp of claim 1 , wherein the glass bulb is coated.

10. The linear lamp of claim 1 , wherein a luminous material is applied as a coating at least in sections to the inside surface or an outside surface of the glass bulb.

11. The linear lamp of claim 1 , wherein the light-emitting diodes have different luminous colors and color temperatures, wherein the luminous color is implemented by controllable LED bands.

12. The linear lamp of claim 1 , wherein the at least two heat sinks are made of copper.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 7, 2020
From: OSRAM GMBH
To: LEDVANCE GMBH
Reel/Frame 053144/0291 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 12, 2014
From: OSRAM AG
To: OSRAM GMBH
Reel/Frame 034627/0718 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 18, 2012
From: LEINEWEBER, WERNER; SCHACHERER, FRIEDBERT
To: OSRAM AG
Reel/Frame 028396/0325 →