Luminaire based on the light emission of light-emitting diodes

• US 20020044456A1
• Filed: 08/20/2001
• Published: 04/18/2002
• Est. Priority Date: 08/22/2000
• Status: Active Grant

• Current Assignee: Signify Holding B.V. (Signify N.V.)
• Original Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Inventors: Balestriero, Christophe, Flaissier, Marc Olivier
• Granted Patent: US 6,561,690 B2
• Time in Patent Office: Days
• US Class Current: 362/555
• CPC Class Codes: F21S 4/28 rigid, e.g. LED bars
• CPC Class Codes: F21V 15/013 the housing being an extrusion
• CPC Class Codes: F21V 17/101 permanently, e.g. welding, gluing or riveting
• CPC Class Codes: F21V 29/70 characterised by passive heat-dissipating elements, e.g. heat-sinks
• CPC Class Codes: F21V 29/87 Organic material, e.g. filled polymer composites; Thermo-conductive additives or coatings therefor
• CPC Class Codes: F21V 5/00 Refractors for light sources characterised by cooling arrangements F21V29/504
• CPC Class Codes: F21Y 2103/10 comprising a linear array of point-like light-generating elements
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: H01L 25/0753 the devices being arranged next to each other
• CPC Class Codes: H01L 2924/00 Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
• CPC Class Codes: H01L 2924/0002 Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
• CPC Class Codes: H01L 33/483 Containers
• CPC Class Codes: H01L 33/58 Optical field-shaping elements
• CPC Class Codes: Y10S 362/80 Light emitting diode

Abstract

The invention relates to a luminaire comprising a housing (1) which defines an internal space containing at least one light source formed by a light-emitting diode (LED) (2) and optical means (4) for guiding the light emitted by the LED (2) to the exterior of the housing (1). The LED (2) is mounted to a support (3) connected to the housing (1), and the optical means (4) are held between a retaining element (10) connected to the housing (1) and the support (3) of the LED (2).

The mounting thus realized involves a placement of the optical means (4) on the support (3) of the LED (2) and the use of the retaining element (10) connected to the housing (1) for keeping it fixed. This mounting provides the advantages that no delicate manipulations of the LED (2) are necessary because the latter may be pre-installed on its support (3), that it is fast, and that it can be readily automated.

Claims

1. A luminaire comprising a housing which defines an internal space containing at least one light source formed by a light-emitting diode (LED) and optical means for guiding the light emitted by the LED to the exterior of the housing, characterized in that the LED is mounted to a support connected to the housing, and in that the optical means are held between a retaining element connected to the housing and the support of the LED.

2. A luminaire as claimed in claim 1, characterized in that the optical means are elastically held between the retaining element connected to the housing and the support of the LED by elastic retention means.

3. A luminaire as claimed in claim 2, characterized in that the elastic retention means of the optical means are realized in the form of a block of elastic material placed in a position such that it is compressed between the retaining element connected to the housing and the optical means.

4. A luminaire as claimed in claims 1 to 3, characterized in that a material having a low adhesion coefficient is placed between the optical means and the retaining element connected to the housing.

5. A luminaire as claimed in claims 1 to 4, characterized in that the retaining element connected to the housing is connected to the housing by gluing means.

6. A luminaire as claimed in claim 5, characterized in that the gluing means are formed by adhesive tapes.

7. A luminaire as claimed in claims 1 to 6, characterized in that the retaining element connected to the housing is a plate which transmits light.