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A spectroscopic sunlight conveyor

A conveyor and sunlight technology, applied in the coupling of optical waveguides, etc., can solve the problem of easy aging of plastic optical fibers, and achieve the effect of reducing temperature, low price, and realizing direct lighting.

Inactive Publication Date: 2011-12-28
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, infrared rays converge at the concentrating interface to easily form a high temperature zone, and plastic optical fibers are prone to aging under long-term sunlight exposure

Method used

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  • A spectroscopic sunlight conveyor
  • A spectroscopic sunlight conveyor
  • A spectroscopic sunlight conveyor

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Embodiment Construction

[0026] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0027] see figure 1 , 2, the present invention includes a Fresnel lens 1 and a concentrating interface 2 arranged in the optical path of the Fresnel lens 1, and in the optical path of the concentrating interface 2 from the Fresnel lens 1, a double Concave curved surface lens 4 and optical fiber 3; the double concave curved surface lens 4 is arranged in the visible light focusing area formed after the sunlight passes through the Fresnel lens 1, and the Fresnel lens 1, the double concave curved surface lens 4. The converging interface 2 and the optical fiber 3 are located on the same optical axis.

[0028] In the present embodiment, the Fresnel lens is relatively large in area (such as 400*400mm 2 ), and its focal length is very small (L=15mm), so as to obtain a strong refraction phenomenon and complete the separation of sunlight according to the spectrum, se...

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PUM

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Abstract

The invention discloses a light splitting type sunlight conveyor, which comprises a Fresnel lens arranged on the same optical axis and a condensation interface unit arranged in the light path of the Fresnel lens; a double-concave rotary curved surface lens and a light guide fiber on the same optical axis are sequentially arranged in the light path of the Fresnel lens in the condensation interfaceunit; and the double-concave rotary curved surface lens is arranged in a visible light focusing area formed after the sunlight penetrates the Fresnel lens. According to the conveyor, visible light for illumination is separated out from the sunlight, and then the light path of the light is adjusted by using the double-concave lens, so that the light satisfies the total reflection condition and is efficiently transmitted to an illumination position. By the method, the temperature of the condensation area can be effectively reduced, and the problem of plastic fiber ageing caused by ultraviolet light is eliminated.

Description

technical field [0001] The invention relates to the field of sunlight transportation, in particular to a spectroscopic sunlight conveyor. Background technique [0002] At present, in practical applications, visible light is mainly used directly to realize lighting functions, because compared with quartz optical fibers, the ability to transmit ultraviolet and infrared spectra is of little significance for general lighting in practical applications. The plastic optical fiber is equivalent to the quartz optical fiber, and its cheap price makes the whole sunshine conveyor have a great competitive advantage in the market. However, infrared rays converge at the concentrating interface to easily form a high temperature zone, and plastic optical fibers are prone to aging under long-term sunlight exposure. Contents of the invention [0003] The object of the present invention is to provide a light-splitting sunlight conveyor that can effectively reduce the temperature of the light...

Claims

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Application Information

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IPC IPC(8): G02B6/32
Inventor 宁铎田艳丽黄建兵戴庆瑜刘伟张宏博
Owner SHAANXI UNIV OF SCI & TECH