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Led lamp with omnidirectional light radiation and optimized heat dissipation

A technology of LED light source and dissipation, applied in the field of LED light source, can solve the problem of not ensuring sufficient dissipation of heat, and achieve the effect of minimizing shading

Inactive Publication Date: 2010-02-03
克里斯多夫·库格雷
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this assembly is that the support does not ensure adequate dissipation of heat

Method used

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  • Led lamp with omnidirectional light radiation and optimized heat dissipation
  • Led lamp with omnidirectional light radiation and optimized heat dissipation
  • Led lamp with omnidirectional light radiation and optimized heat dissipation

Examples

Experimental program
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Embodiment Construction

[0044] The table below shows the luminous efficiency and total power loss. In this way the low luminous flux is in the range of 500lm to 750lm, the high luminous flux then starts from 1000lm. Also, it must be assumed that the light source becomes very hot from 30W onwards with total power consumption. With a total power loss of over 40W, the light source became so hot that it was damaged.

[0045]

[0046] White LEDs with 2.5W power loss and 50lm / W luminous efficacy are currently available. It is stated that white LEDs with 5W per LED power loss and 50lm / W luminous efficiency or alternatively with 2.5W per LED power loss and 70lm / W luminous efficiency will be commercially available from 2008 onwards.

[0047] As can be seen from the table above, at least four, preferably six, white LEDs with a luminous efficacy of 50 lm / W and a power loss of 2.5 W per LED should be replaced by a conventional 75W incandescent lamp having a luminous flux of approximately 900 lm. Even, and...

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Abstract

An LED lamp comprises a plurality of angular carriers (Li). Moreover, the angular carrier sections (2.i) of the carriers (1.i) are adjacent. The solid angles of the surface of the angular carrier sections (2.i) correspond substantially to different solid angles of a polyhedron. The LED lamp furthermore has a plurality of LED elements (4.i) which are disposed on the angular carrier sections (2.i).The heat of the individual LED elements (4.i) emanating from the angular carrier section (2.i) is dissipated over the remaining carrier (3.i).

Description

technical field [0001] The invention relates to an LED light source (LED—Light Emitting Diode), a lamp comprising such an LED light source and a method for the manufacture of such a light source. Background technique [0002] The light source is the light emitting object of the lamp. Existing light sources are, for example, incandescent lamps (also called incandescent bulbs), halide lamps or fluorescent lamps. Due to the continuous development of the LED field, the application of LED as a light source has also attracted more and more attention. At present, incandescent lamps, halide lamps or fluorescent lamps are still dominant. [0003] LEDs are diode-based semiconductor devices. If forward current flows through the diode, it glows. Through the choice and doping of the semiconductor material, the wavelength of the emitted light can be influenced. [0004] LEDs that produce white light (white LEDs) can be fabricated by covering blue LEDs with fluorescent dyes. Alternati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21V29/00F21K7/00H01L25/13F21V29/02F21Y101/02F21K99/00
CPCF21K9/00F21K9/232F21Y2115/10F21Y2107/00F21Y2107/40F21V29/503
Inventor 克里斯多夫·库格雷
Owner 克里斯多夫·库格雷
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