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Light emitting diode device

A device and LED device technology, applied in the field of light-emitting devices, can solve the problem of suboptimal heat transfer, and achieve the effect of easy realization and optimization of heat transfer

Active Publication Date: 2020-01-31
LUMILEDS HLDG BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Furthermore, heat transfer is not optimal given the fact that transparent silicone fillers have only one-fifth the thermal conductivity of white silicone compared to white silicone

Method used

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Embodiment Construction

[0056] Various embodiments of the invention will now be described with the aid of the drawings.

[0057] figure 1 A basic schematic diagram is shown of an LED device as known in the prior art with an LED package 1 , an interposer 2 and Contact device 3. This LED device is produced by starting from a housing, which is produced, for example, by extrusion. In this housing 6 the inner part of the LED device including the LED package 1 , the interposer 2 and the contact means 3 including the inner part wires is put. In a next step transparent silicone is filled in the housing 6 whereby the transparent silicone surrounds the inner part of the LED device including the LED package 1 , possibly the interposer 2 and the contact means 3 including the inner part lines. In use, part of the emitted light is lost by absorption on the inner parts, especially light traveling around and below the interposer 2 . Furthermore, the heat transfer from the LED package is not optimal due to the fa...

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Abstract

The present disclosure relates to a light emitting diode (LED) device, wherein an inner part of the LED device, featuring at least a contact and an LED, is at least partly embedded in a transparent ortranslucent silicone fill, wherein the LED is housed in a white or opaque silicone housing, and wherein at least the contact of the inner part of the LED device is at least partially embedded in thewhite or opaque silicone. The invention further relates to different methods for embedding the LED-contact assembly, possibly with an interposer in between, partly in the white or opaque silicone housing, on the one hand, and partly in the transparent or translucent silicone fill, on the other hand. The disclosure finally relates to the transparent or translucent silicone fill itself.

Description

technical field [0001] The present invention relates to light emitting devices (LEDs), in particular LEDs at least partially embedded in a transparent or translucent silicone filling, whereby the embedded LEDs are housed in a white silicone housing. Here and below, the expression transparent silicone filling always refers to a transparent or translucent silicone material. The invention also relates to a method for embedding an LED partly on the one hand in a white silicone housing and on the other hand partly in a transparent silicone filling. The invention finally relates to transparent silicone fillings. Background technique [0002] Flexible LED strips are used in a growing number of lighting applications. In many cases, optical elements are arranged in front of the LED to modify the light emission, such as for example lenses, reflectors and / or collimators and / or light guides are arranged to obtain an emitted beam of desired properties. The bendability or adaptability ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L33/52H01L33/56H01L33/64H01L33/62H01L33/58
CPCH01L33/52H01L33/56H01L33/64H01L33/62H01L33/58H01L33/486H01L33/60H01L33/641H01L2933/0033H01L2933/005H01L2933/0058H01L2933/0066H01L2933/0091H01L33/54H01L33/483
Inventor F.克龙普韦茨C.克莱吉嫩G.亨宁格D.拉巴斯G.黑宾豪斯
Owner LUMILEDS HLDG BV