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Parallel light source

A parallel light source, parallel light technology, applied in the field of artificial parallel light, can solve the problems of solar photovoltaic product development constraints, artificial light source is difficult to simulate the parallel illumination of sunlight and other problems

Inactive Publication Date: 2016-01-13
SI CHUAN ZHONG SHUN SOLAR ENERGY DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Even if the divergence angle is controlled at about 5°, it is difficult for artificial light sources to perfectly simulate the parallel irradiation of sunlight in the natural environment, which has caused serious constraints on the development of solar photovoltaic products

Method used

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Examples

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Effect test

Embodiment 1

[0033] Such as figure 1 As shown, a xenon lamp is selected as the excitation light source of the parallel light source 3, and a light-transmitting plate 1 is arranged in the direction of light transmission of the light source, and crystals are regularly arranged inside the light-transmitting plate 1. The size of the light is the wavelength of the light excited by the light-emitting element Grade birefringent crystal calcite ( figure 1 not shown in). Such as Figure 5 As shown, the birefringent crystals are regularly arranged inside the light-transmitting plate. Such as figure 2 As shown, when the light excited by the light-emitting element passes through the calcite in the light-transmitting plate, Mie scattering occurs because the size of the birefringent crystal and the wavelength of the light are in the same order of magnitude. Such as Figure 4 As shown, the scattered light is separated into ordinary light o light and extraordinary light e light in the birefringent c...

Embodiment 2

[0035] The birefringent crystals of liquid crystal molecules are used to prepare crystal particles with a size of 400-800nm, and the birefringent crystals are regularly arranged inside the light-transmitting flat plate with a crystal spacing of 500nm. Then, install the light-transmitting plate on the light exit port of the xenon light source. When the original light excited by the light source enters the light-transmitting plate, it is converted into parallel light and exits from the other side of the light-transmitting plate. A convex lens is used for focusing, and the size of the focal point is observed. It can be seen that the divergence angle of the light source is about 1°.

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Abstract

The invention discloses a parallel light source which comprises a light-emitting element and a light-permeable panel. Light rays emitted by the light-emitting element pass through the light-permeable panel and are converted into parallel light. Birefringent crystals are arranged inside the light-permeable panel regularly. The dimension of the birefringent crystals is the wavelength magnitude of the light rays emitted by the light-emitting element. By means of the parallel light source, the problem that in the prior art, a parallel light source is prone to being diffused is solved, an artificial parallel light source with the larger diameter can be provided, the condition of parallel illumination of sunlight in the natural environment can be simulated perfectly, and the parallel light source has great significance on the development of solar photovoltaic products.

Description

technical field [0001] The invention relates to artificial parallel light in the field of optics. It is widely used in research fields such as photocatalysis, industrial catalysis, photolysis of water to produce hydrogen, photochemical catalysis, photochemical synthesis, photodegradation of pollutants, water pollution treatment, biological illumination, optical detection, concentrated photovoltaics, and light acceleration experiments. Background technique [0002] Solar energy has excellent characteristics such as cleanness, no geographical limitation of resources, and inexhaustibility for human beings. It is more and more popular among people. Among them, the technology of solar photovoltaic utilization, that is, the direct conversion of sunlight into electrical energy through photovoltaic devices, is particularly eye-catching. [0003] At present, a complete concentrating photovoltaic power generation system mainly includes several parts such as concentrating solar cell mo...

Claims

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Application Information

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IPC IPC(8): F21S8/00F21V5/00
CPCF21S8/006F21V5/00
Inventor 黄忠黄饶
Owner SI CHUAN ZHONG SHUN SOLAR ENERGY DEV