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Irradiation light quantity control device and solar simulator

A technology of solar simulator and light quantity control, which can be applied to measurement devices, lighting devices, fixed lighting devices, etc., and can solve problems such as cost increase

Inactive Publication Date: 2016-08-24
YAMASHITA DENSO +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] However, the method of dimming the amount of irradiated light described in Patent Document 1 also has the problem of considerable changes in the spectral distribution and in-plane uniformity of the irradiated light. Furthermore, due to the structure of the mechanical dimming filter More special, so the cost increases

Method used

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  • Irradiation light quantity control device and solar simulator
  • Irradiation light quantity control device and solar simulator
  • Irradiation light quantity control device and solar simulator

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Embodiment Construction

[0040] figure 1 The structure of one embodiment of the solar simulator of the present invention is schematically shown, figure 2 Schematically showing the structure of the irradiated light quantity control device part, image 3 Will figure 2 Part of is enlarged.

[0041] exist figure 1 Among them, 10 represents, for example, a light source composed of a xenon discharge lamp, etc., 11 represents, for example, a light source reflector having an elliptical or parabolic axial section arranged behind and around the light source 10, and 12 represents the direct light and light incident from the light source 10 and Reflected light from the light source reflector 11 and a first plane reflector made of aluminum, for example, which reflects it in a substantially vertical direction, 13 denotes a mechanical light reduction filter into which reflected light from the first plane reflector 12 is incident, 14 Represents the light diffusion element that is incident on the outgoing light ...

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Abstract

An irradiation light quantity control device comprises a mechanical neutral density filter for reducing the illumination by blocking part of the luminous flux from a light source; an integrator element which is provided on the light emitting side of the mechanical neutral density filter and produces an optically uniform distribution of light; and a light diffusion element which is interposed between the mechanical neutral density filter and the integrator element and has a light diffusion function and a high order diffraction light component blocking function.

Description

technical field [0001] The present invention relates to an irradiation light quantity control device and a solar simulator having a dimming function of irradiation light. Background technique [0002] For example, a solar simulator (solar simulator) for measuring photoelectric conversion characteristics or performing a degradation characteristic test by irradiating an irradiation object using solar energy such as a solar cell panel with simulated sunlight generated is known. [0003] In such a solar simulator, the most common method of changing (dimming) the amount of irradiated light is to change (reduce) the driving power of a light source (discharge lamp in many cases) used in the device. However, if the driving power is changed in this way, the uniformity in the irradiation surface does not change much, but the light emission characteristic of the light source itself changes, so the spectral distribution of the irradiation light changes greatly. [0004] There is also a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F21S2/00F21V11/10F21V11/14F21V13/02G01N17/00F21Y101/00
CPCF21S8/006G01N17/02
Inventor 久保修彦高桥邦明猪狩真一
Owner YAMASHITA DENSO