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Light emitting diode module and method for the manufacturing of such an LED module

A technology of LED modules and light-emitting diodes, which is applied in the direction of light sources, lighting and heating equipment, electrical components, etc., and can solve the problems of incorrect placement of optical components and movement of optical components in production machines

Inactive Publication Date: 2009-04-08
KONINKLIJKE PHILIPS ELECTRONICS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In high-speed pick-and-place production equipment, this precise positioning can be a serious problem for two reasons: 1) firstly, the production machine cannot place the optics correctly, and 2) the optics are placed correctly, but during further processing The optic has moved from its position

Method used

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  • Light emitting diode module and method for the manufacturing of such an LED module
  • Light emitting diode module and method for the manufacturing of such an LED module
  • Light emitting diode module and method for the manufacturing of such an LED module

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Embodiment Construction

[0022] Figures 1a-1f are perspective views showing different modifications of the LED module 10 according to the embodiment of the present invention. The LED module 10 includes a substrate 12 on which is mounted an LED chip 14 suitable for emitting light. Figures 1a-1f The LED chip 14 in is a flip chip with contacts (not shown) on its underside facing the substrate 12 for electrical connection to a current source (not shown). The LED module 10 further comprises an optical element mounted on top of the LED chip 14 , namely a conversion plate 16 .

[0023] The conversion plate 16 is adapted to convert the wavelength of at least a portion of the light emitted from the LED chips 14 . The LED chip 14 can eg emit blue light, part of which is converted by the conversion plate 16 into yellow / orange light, whereby the combined emission of unconverted blue light and converted yellow / orange light emitted by the LED results in a white light imprint. Alternatively, LEDs can be used whic...

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PUM

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Abstract

The present invention relates to a light emitting diode (LED) module (10) comprising an LED (14) chip for emitting light, which LED chip is mounted on a substrate (12), and an optical element (16) positioned on top of the LED chip for converting the wavelength of at least part of the light emitted from the LED chip. The LED module is characterized by means (18, 20, 22, 24, 26, 28, 32, 34) for laterally and angularly aligning the optical element with the LED chip. The alignment means ensure that the optical element automatically aligns itself to the LED chip when it is placed on the chip, and that the correct position and orientation of the optical element is maintained during subsequent manufacturing and operation of the LED module. The present invention also relates to a method for the manufacturing of such an LED module.

Description

technical field [0001] The present invention relates to a light emitting diode (LED) module, which includes an LED chip mounted on a substrate for emitting light, and an optical element arranged on top of the LED chip for receiving light emitted from the LED chip. The invention also relates to a method of manufacturing such an LED module. Background technique [0002] Examples of light emitting devices of the above-mentioned type are disclosed, for example, in document US20050110034. In US20050110034, LED chips are flip-chip mounted on leads with their electrodes or contacts facing the leads. The light-emitting device further includes an optical element pasted on top of the LED chip, that is, a fluorescent plate, which is located on the opposite side of the LED chip from the contacts. The function of this board is to convert some of the light emitted from the LED chips into light of a different wavelength to generate eg white light. This light is outcoupled on the top sid...

Claims

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Application Information

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IPC IPC(8): H01L33/00F21K99/00H01L33/50H01L33/62
CPCH01L33/505H01L33/62H01L2224/48091H01L2924/00014
Inventor K·布伦纳A·L·韦杰斯N·A·M·斯韦杰斯C·G·维瑟
Owner KONINKLIJKE PHILIPS ELECTRONICS NV