LUMINAIRE WITH A LAMPSHADE

• US 20150085483A1
• Filed: 09/23/2014
• Published: 03/26/2015
• Est. Priority Date: 09/24/2013
• Status: Active Grant

• Current Assignee: Glashutte Limburg Leuchten GmbH + Co. KG
• Original Assignee: Glashutte Limburg Leuchten GmbH + Co. KG
• Inventors: STROTMANN, Heinz-Dieter, ZELLERHOFF, Jan
• Granted Patent: US 9,328,893 B2
• Time in Patent Office: Days
• US Class Current: 362/235
• CPC Class Codes: F21K 9/20 Light sources comprising attachment means
• CPC Class Codes: F21S 8/06 by suspension
• CPC Class Codes: F21V 1/00 Shades for light sources , i.e. lampshades for table, floor, wall or ceiling lamps
• CPC Class Codes: F21V 1/146 Frameless shades
• CPC Class Codes: F21V 3/00 Globes; Bowls; Cover glasses with refracting properties F21V5/00; with reflecting properties F21V7/00; characterised by cooling arrangements F21V29/506
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

A luminaire comprises a light source in the form of at least one LED, and a transparent lampshade having a closed light inlet end and an open light outlet end with a light outlet opening, the light source being arranged at the light inlet end, outside the lampshade. It is provided that the lampshade comprises a recess at the light inlet end which points to the light outlet opening.

Claims

1. A luminaire comprising a light source in the form of at least one LED, and comprising a transparent lampshade having a closed light inlet end and an open light outlet end with a light outlet opening, the light source being arranged at the light inlet end, outside the lampshade, characterized in that the lampshade comprises a recess at the light inlet end which points to the light outlet opening.

2. The luminaire according to claim 1, wherein a height of the recess corresponds to at least 50% of a height of the lampshade.

3. The luminaire according to claim 2, wherein the height of the recess corresponds to at least 70%, particularly preferably at least 80%, of the height of the lampshade.

4. The luminaire according to claim 1, wherein a width of the recess corresponds to at least 25%, preferably at least 40%, of a width of the lampshade.

5. The luminaire according to claim 1, wherein the recess is substantially spherical or dome-shaped.

6. The luminaire according to claim 1, wherein an outer region of the lampshade adjacent to the recess is substantially toroidal or cylindrical.

7. The luminaire according to claim 1, wherein the lampshade is made in one piece.

8. The luminaire according to claim 1, wherein the surface of the lampshade is frosted at least in the area of the recess.

9. The luminaire according to claim 1, wherein the surface of the lampshade has a defined surface structure, at least in the area of the recess, in particular a groove structure, nap structure or pyramid structure.

10. The luminaire according to claim 1, wherein the luminaire comprises a supporting plate on which the LED is arranged.

11. The luminaire according to claim 10, wherein the supporting plate is embedded in the lampshade.

12. The luminaire according to claim 10, wherein a substantially stepped transition area is formed between the recess and the outer region.

13. The luminaire according to claim 10, wherein the supporting plate and the outside of the lampshade are flush.

14. The luminaire according to claim 10, wherein the lampshade is screwed to the supporting plate.

15. A lampshade for a luminaire according to claim 1, the lampshade having a closed light inlet end and an open light outlet end with a light outlet opening, wherein the lampshade comprises a recess at the light inlet end which points to the light outlet opening, wherein the height of the recess corresponds to at least 50% of the height of the lampshade.