Device for concentrating optical radiation

A technology of light radiation and plane concentrating, applied in heating devices, solar thermal devices, optics, etc., can solve the problems of high manufacturing cost, high absorption loss, and difficulty in manufacturing, and achieve the effect of simple design and manufacturing and low energy loss
CN1358333AInactive Publication Date: 2002-07-10TERRASUN LLC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
TERRASUN LLC
Publication Date
2002-07-10
Estimated Expiration
Not applicable · inactive patent

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Abstract

A holographic planar concentrator (HPC) (10') for collecting and concentrating optical radiation is provided. The holographic planar concentrator (10') comprises a planar highly transparent plate (12, 12') and at least one multiplexed holographic optical film (14, 14') mounted on a surface thereof. The multiplexed holographic optical film (14, 14') has recorded therein a plurality of diffractive structures having one or more regions (14, 114, 214) which are angularly and spectrally multiplexed. Two or more of the regions (14, 114, 214) may be configured to provide spatial multiplexing. The recording of the plurality of diffractive structures is tailored to the intended orientation of the holographic planar concentrator (10') to solar energy. At least one solar energy-collecting device (30), such as a photovoltaic cell, is mounted beneath said holographic optical film (14, 14'). The optical radiation is guided within the plate by the holographic film (14, 14') and total internal reflection to be concentrated on the solar energer collecting device (30).
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Description

technical field

[0001] The invention relates to optical devices, in particular to the field of light concentrators for condensing optical radiation. A concentrator produced according to the subject matter of the invention can be used in all technical fields in which condensed optical radiation is utilized. It can be used for light radiation in the spectral range from ultraviolet to infrared. Background technique

[0002] Luminescent solar concentrators are well known in the art for capturing and collecting light from luminescent centers spread across a flat panel. The concentrator captures a portion of the light emitted by the luminescent center using total internal reflection in the light guide. The luminous centers re-radiate light at longer wavelengths within a 360-degree solid angle, so it is inefficient to spread light to a small area on one side or edge of the panel.

[0003] One example of a solar concentrator known in the art utilizes holograms and prisms or plate...

Claims

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