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Spatial positioning of photon emitters in plasmonic illumination device

A technology for lighting equipment and plasma antennas, which is applied to lighting and heating equipment, optical elements for changing the spectral characteristics of emitted light, components of lighting devices, etc., and can solve problems such as increasing the emission efficiency of lighting equipment

Active Publication Date: 2017-02-22
LUMILEDS HLDG BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] Therefore, proposed solutions for increasing the emission efficiency of light-emitting devices suffer from inherent drawbacks that are difficult to overcome

Method used

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  • Spatial positioning of photon emitters in plasmonic illumination device
  • Spatial positioning of photon emitters in plasmonic illumination device
  • Spatial positioning of photon emitters in plasmonic illumination device

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Embodiment Construction

[0047] The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the invention are shown. However, this invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided for thoroughness and completeness, and will fully convey the teachings of this invention to those skilled in the art. scope. Like reference symbols denote like elements throughout.

[0048] In the present detailed description, various embodiments of illumination devices according to the present invention are mainly discussed in relation to illumination devices having a photon-emitting layer comprising wavelength converting particles. It should be noted that this in no way limits the scope of the invention, which is equally applicable to other types of photon emitters that may be included in the lighting device.

[0049] fig...

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Abstract

There is provided an illumination device (100) comprising: a substrate (104); an optically transmissive first layer (106) arranged on the substrate; a photon emitting layer (108), arranged on the optically transmissive first layer and comprising a photon emitting material configured to receive energy from an energy source and to emit light having a predetermined wavelength; and a periodic plasmonic antenna array, arranged on the substrate and embedded within the first layer, and comprising a plurality of individual antenna elements (114) arranged in an antenna array plane, the plasmonic antenna array being configured to support a first lattice resonance at the predetermined wavelength, arising from coupling of localized surface plasmon resonances in the individual antenna elements to photonic modes supported by the system comprising the plasmonic antenna array and the photon emitting layer, wherein the plasmonic antenna array is configured to comprise plasmon resonance modes such that light emitted from the plasmonic antenna array has an anisotropic angle distribution; and wherein the photon emitting layer is arranged at a distance from the antenna array plane corresponding to a location of maximum field enhancement for light out-coupling resulting from the plasmonic-photonic lattice resonances.

Description

technical field [0001] The present invention relates to plasma lighting devices. In particular, the invention relates to the optimized spatial positioning of emitters in plasma lighting devices and to methods for producing such devices. Background technique [0002] It is desirable for light emitting diodes (LEDs) for use in lighting applications to provide substantially white light having a color temperature approximately comparable to that produced by incandescent lighting. [0003] White light from LEDs is typically provided by using pn diodes that emit blue light having a wavelength of about 450 nm, where part of the blue light is converted to longer wavelengths by using one or more wavelength converting materials disposed on or near the top of the diode. By combining the converted light with unabsorbed blue light, a fairly broadband spectrum that is perceived as white light can be obtained. [0004] Currently, in most commercial applications, wavelength conversion mat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L33/58G02F1/29H01L33/50
CPCG02F1/29H01L33/507H01L33/58G02F2203/10H01L33/508F21V9/30F21K9/20H01L33/50F21Y2115/10F21K9/64G02B5/008
Inventor M.A.弗舒伦G.S.洛扎诺巴贝罗J.戈梅兹里瓦斯
Owner LUMILEDS HLDG BV
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