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Barrier layer delaying oxygen depletion in sealed gas-filled LED lamps

A barrier material, gas filling technology, applied in electrical components, climate sustainability, semiconductor devices of light-emitting components, etc., can solve problems such as LED degradation

Inactive Publication Date: 2018-05-11
SIGNIFY HLDG BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, WO2013154932 describes that in a sealed environment, operating LEDs in an oxygen-depleted environment may cause LED degradation

Method used

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  • Barrier layer delaying oxygen depletion in sealed gas-filled LED lamps
  • Barrier layer delaying oxygen depletion in sealed gas-filled LED lamps
  • Barrier layer delaying oxygen depletion in sealed gas-filled LED lamps

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0062] Figures 1a to 1b schematically depict the use of He and O 2 The lighting unit of the conventional glass bulb / low cost LED bulb is designed.

[0063] Figure 1 a schematically depicts one embodiment of how to assemble the lighting unit, assuming here that the components indicated with reference number 20 are available. FIG. 1 a schematically depicts components of a lighting unit 10 comprising a lighting device 100 , a support 200 and an enclosure 300 . The lighting device 100 is configured to provide lighting device light (not shown). The lighting device 100 includes a light source 110 . The supporter 200 is configured to support the light source 110 . The support 200 together with the functionally coupled light source 110 is also indicated herein as an assembly 20 . The enclosure 300 provides a sealed space 310 that surrounds at least a portion of the supporter 200 and the light source 110 . The enclosure 300 includes an enclosure portion 320 transmissive to luminai...

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PUM

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Abstract

The invention provides a lighting unit (10) comprising (a) a lighting device (100), (b) a support (200), and (c) an envelope (300), wherein: the lighting device (100) is configured to provide lightingdevice light (101); wherein the lighting device (100) comprises a light source (110); the support (200) is configured to support the light source (110); wherein the 5 support (200) comprises a laminate of layers, wherein the laminate of layers comprises an electrically conductive first layer, an electrically non-conducive second layer), and a third layer, wherein the first layer comprises copper,wherein the second layer comprises an epoxy-based material, and wherein the third layer comprises an oxygen barrier material; the envelope (300) is configured to provide a sealed space (310) enclosing the 10 light source (110) and at least part of the support (200); wherein the envelope (300) comprises an envelope part (320) transmissive for the lighting device light (101), and wherein the sealedspace (310) comprise a filling gas (330) comprising a thermally conductive gas, wherein the filling gas (330) at least comprises oxygen (O2).

Description

technical field [0001] The invention relates to a lighting unit. The invention also relates to an assembly of a light source and a support for use in such a lighting unit. The invention also relates to a method for producing such an assembly. The invention also relates to a method for producing a lighting unit. Background technique [0002] Lighting bulbs with LEDs and gas filling are known in the art. For example, WO2013154932 describes that in a sealed environment, operating LEDs in an oxygen-depleted environment can cause LED degradation. One result of this degradation is browning of silicone, which can be used as an encapsulant for LED chips. According to WO2013154932, it is believed that browning of siloxanes can be caused by a combination of: the environment in which the LED operates (poor in oxygen), contaminants such as organics in the LED assembly or other components in the enclosure, light energy from the LED and / or the flux density of thermal energy generated...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K1/18
CPCF21V29/85F21K9/232H05K1/181H05K2201/10106Y02P70/50F21V29/50F21K9/64F21Y2115/10H05K1/032H05K1/09
Inventor D·维尔德曼W·E·J·范克腾J·G·J·贝杰J·F·J·M·卡尔斯
Owner SIGNIFY HLDG BV