LED Spotlight Having a Reflector
AssigneeTridonic Jennersdorf GmbH
InventorChristian Derkits
Life of this patent
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Abstract
The invention relates to a LED spotlight, preferably for white light, comprising—an LED module (5) having several LED chips (7, 7′) on a carrier (6),—a cooling body (3) that is in thermal contact with the LED module (5),—a reflector (2) that laterally surrounds the LED chips (7, 7′), and—a light mixing chamber (40) arranged within the reflector (3) and laterally surrounding the LED chips (7, 7′), the light mixing chamber base surface (50) and the reflector bottom (60) being located on the same plane.
Claims21
An LED spotlight, preferably for white light, having:
- an LED module (5) having several LED chips (7, 7′) on a carrier (6),
- a cooling body (3) which is in thermal contact with the LED module (5),
- a reflector (2) which laterally surrounds the LED chips (7, 7′), and
- a light mixing chamber (40) which is arranged within the reflector (3) and laterally surrounds the LED chips (7, 7′),
- wherein the light mixing chamber base surface (50) and the reflector bottom (60) are located on the same plane.
An LED spotlight, preferably for white light, having:
- an LED module (5) having several LED chips (7, 7′) on a carrier (6),
- a cooling body (3) which is in thermal contact with the LED module (5),
- a reflector (2) which laterally surrounds the LED chips (7, 7′), and
- a light mixing chamber (40) which is arranged within the reflector (3) and laterally surrounds the LED chips (7, 7′),
- wherein a cylinder attachment (4), which is preferably integrally formed with the reflector bottom, and which directly or indirectly surrounds the light mixing chamber (40), extends away from the reflector bottom (60).
An LED spotlight, preferably for white light having:
- an LED module (5) having several LED chips (7, 7′) on a carrier (6),
- a cooling body (3) which is in thermal contact with the LED module (5),
- a reflector (2) which laterally surrounds the LED chips (7, 7′), and
- a light mixing chamber (40) which is arranged within the reflector (3) and laterally surrounds the LED chips (7, 7′),
- wherein the light mixing chamber walls (40) and the reflector bottom (60) are placed directly on the carrier (6) of the LED module (5).
A method for improving the color homogeneity of a white light LED spotlight, having the following steps:
- premixing of light of several LEDs and optionally of color conversion material in a mixing chamber, which is laterally delimited by reflecting walls and is partially not filled,
- conducting the light out of the mixing chamber into the internal volume of a reflector, which outputs the light on its outlet side.
Dependencies are inferred from the claim text.