Optical illumination device

• US 8,704,259 B2
• Filed: 09/25/2009
• Issued: 04/22/2014
• Est. Priority Date: 09/25/2009
• Status: Active Grant

• Current Assignee: Luxintec, S.L.
• Original Assignee: Luxintec, S.L.
• Inventors: Beneitez, Alberto Gejo, Alvarez Ximenez de Embun, Iigo, Domingo Garca, Moiss
• Primary Examiner(s): Wilson, Allan R
• Application Number:
  US13/497,808
• Publication Number:
  US 20120241777A1
• Time in Patent Office: 1,670 Days
• Field of Search: 257/98, 257/E33.067, 257/E33.068, 362/255, 362/256, 362/294, 438/27, 438/29
• US Class Current: 257/98
• CPC Class Codes: F21V 13/02 Combinations of only two kinds of elements
• CPC Class Codes: F21V 29/83 the elements having apertures, ducts or channels, e.g. heat radiation holes
• CPC Class Codes: F21V 5/007 Array of lenses or refractors for a cluster of light sources, e.g. for arrangement of multiple light sources in one plane combination of two or more refractors F21V5/008
• CPC Class Codes: F21V 5/008 Combination of two or more successive refractors along an optical axis
• CPC Class Codes: F21Y 2105/10 comprising a two-dimensional array of point-like light-generating elements
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: G02B 19/0014 at least one surface having optical power
• CPC Class Codes: G02B 19/0057 in the form of a laser diode array, e.g. laser diode bar semiconductor laser arrays with beam combining arrangement H01S5/4012
• CPC Class Codes: G02B 3/0062 Stacked lens arrays, i.e. refractive surfaces arranged in at least two planes, without structurally separate optical elements in-between
• CPC Class Codes: H01L 25/075 the devices being of a type provided for in group H01L33/00
• 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 33/58 Optical field-shaping elements

Abstract

The present invention relates to an optical lighting device comprising at least one light emitting diode configured for emitting said light with a trajectory, the device being capable of modifying said trajectory since it comprises an optical element comprising two faces each having a plurality of preferably rectangular lenses, each lens of one face being aligned with a lens of the other face.

Claims

1. Optical lighting device comprising at least one light emitting diode (4) configured for emitting said light with a trajectory, characterized in that it further comprises a first optical element (1) comprising:

a first face (7) with a plurality of lenses;

a second face (8) with a plurality of lenses, where each lens of the second face (9′

) is aligned with a lens of the first face (9);

a second optical element (2) configured for directing the light emitted by the at least one light emitting diode (4) to the first optical element (1); and

a support element (3) for the second optical element comprising holes for ventilation by convection,

said first optical element (1) being configured for modifying the trajectory of the light emitted by the at least one light emitting diode (4).

2. Device according to claim 1, where the lenses (9, 9′

) have a substantially rectangular section base.

3. Device according to claim 1, further comprising a heat distributing (6) element.