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LED light system

An LED light system, LED light technology, applied in vehicle lighting systems, headlights, lighting and heating equipment, etc., can solve the problems of not being able to generate brightness patterns and reducing luminous efficacy

Active Publication Date: 2010-06-23
SIGNIFY HLDG BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a considerable part of the beam radiated by the point source is not collected by the light guide module
This considerably reduces the luminous efficacy of the device
Also, in the inventor's opinion, the device is not capable of generating specific brightness patterns, such as, for example, the brightness patterns required for vehicle headlights

Method used

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Examples

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Embodiment Construction

[0024] figure 1 A lamp unit 1 is shown comprising 43 individual LED lamp elements 2 . They are arranged in a two-dimensional array according to a prescribed brightness pattern in such a way that they generate defined light-dark areas when in operation. For this purpose, three LED lamp elements 3 are arranged in the center, which emit a spectrum which tends towards yellow. exist figure 1, they are represented by means of a sparse cross-hatch pattern. In contrast to this, the blue-rich LED lamp elements 4 are arranged in the edge region and are indicated by fine hatching. Between and below said LED lamp elements, LED lamp elements 5 with intermediate radiation characteristics of both yellow and blue are grouped. Above the row of yellow LED lamp elements 3 and blue LED lamp elements 4, ie above the line 6, the lamp unit 1 forms a light-dark boundary, wherein the LED lamp elements 7 arranged above the line 6 do not radiate any visible light. They radiate infrared light and ca...

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PUM

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Abstract

The invention relates to an LED light system (1) for generating directed illumination radiation. The system comprises a plurality of LED lamp elements (2), each comprising a collimator (10) with an LED element (9). The LED lamp elements (2) are arranged in a defined array for generating a specified luminance pattern. A secondary optics device (11) images the luminance pattern in the space to be illuminated.

Description

technical field [0001] The invention relates to an LED lamp system with a device for generating directional, preferably variable, illumination radiation and to an LED lamp unit. Background technique [0002] In recent years, the technology for designing and manufacturing inorganic solid-state LEDs has improved rapidly, reaching a stage of development where inorganic white light-emitting LEDs with efficiencies higher than 40 lm / Watt can be fabricated. This efficiency significantly exceeds the efficiency of traditional incandescent lamps (16l m / Watt), and exceeds the efficiency of most halogen lamps (30-35lm / Watt). At the same time, the efficiency of individual LED elements has grown to levels well above 100 lm / Watt. [0003] Disadvantages of LED technology continue to be the relatively high cost and the need for temperature management due to the heating of the LEDs during operation. Another major issue that will affect the widespread availability of LEDs now and in the futu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L25/075H01L27/15
CPCH01L2924/0002F21Y2101/02F21S48/1163F21S48/1154F21S48/1747H01L25/0753F21Y2115/10F21S41/143F21S41/155F21S41/663F21S41/153H01L2924/00
Inventor J·A·舒格J·L·A·M·索马尼L·凯帕
Owner SIGNIFY HLDG BV