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Beam shaping light emitting module

一种发光模块、发光元件的技术，应用在发光元件的半导体器件、光源、半导体器件等方向，能够解决难紧凑型系统准直等问题，达到降低黄圈问题、需求降低、成本降低的效果

Inactive Publication Date: 2014-08-13
KONINKLJIJKE PHILIPS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A drawback of LED light sources with remote wavelength conversion elements is that the emitted light is more difficult to collimate using compact systems than light from smaller sources such as white LEDs

Method used

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  • Beam shaping light emitting module
  • Beam shaping light emitting module
  • Beam shaping light emitting module

Examples

Experimental program
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Embodiment Construction

[0030] The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which presently preferred embodiments of the invention are shown. However, the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; , providing these examples.

[0031] figure 1 A lighting module 1 is shown. The light emitting module 1 includes at least one light emitting element 3 . In the example shown, four light emitting elements 3 are shown. The light emitting module 1 further comprises a wavelength conversion element 5 which is arranged at a distance from the light emitting element 3 . The first optical element 7 is provided on top of or at a small distance from the side of the light converting element 5 facing away from the light emitting element 3 . Thus, the wavelength converting element 5 is positioned between the light emitting element 3 and the first optical el...

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Abstract

There is provided a light emitting module (1) having at least one light emitting element (3) which is arranged to emit light of a primary wavelength, and a wavelength converting element (5) arranged at a distance from the at least one light emitting element (3). The wavelength converting element (5) is arranged to convert at least part of the light of a primary wavelength into light of a secondary wavelength. Further the module (1) comprises a first optical component (7) having surface structures (11) on a surface facing away from the light emitting element (3). Light rays incident on the first optical component (7) at small angles are reflected and light rays incident on the first optical component (7) at large angles are transmitted and bent towards a normal of the first optical component (7). The invention is advantageous in that it provides a compact and efficient light-directing module.

Description

technical field [0001] The invention relates to the field of lighting devices. More specifically, the present invention relates to a light emitting module comprising a light emitting element and a wavelength converting element arranged at a distance from the light emitting element. Background technique [0002] White lighting can be achieved by using blue light emitting diodes (LEDs) in combination with a wavelength conversion layer such as a phosphor layer that absorbs some of the blue light and converts it to a longer wavelength color. The different wavelengths are combined in the output light, resulting in white light. [0003] However, this method has many problems. One problem arises from the fact that the output light from the wavelength converting layer will have different color compositions in different directions. In particular, output light emitted at small angles generally has a higher proportion of blue light, while output light emitted at large angles general...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L33/60
CPCH01L33/60F21K9/56F21K9/64
Inventor F·H·扎恩S·L·戈尔德巴赫M·P·J·皮特斯R·C·布罗尔斯玛A·L·威杰尔斯
Owner KONINKLJIJKE PHILIPS NV
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