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Transparent solar-heat collecting apparatus, solar water heating system, and solar cogeneration system

  • US 9,780,724 B2
  • Filed: 08/25/2015
  • Issued: 10/03/2017
  • Est. Priority Date: 08/29/2014
  • Status: Expired due to Fees
First Claim
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1. A transparent solar heat absorbing apparatus comprising:

  • a transparent member that allows sunlight to pass through;

    a wavelength selective member disposed beneath the transparent member, the wavelength selective member allowing light in a transmission range including at least a visible wavelength range to pass through and reflecting light in a reflection range including at least an infrared wavelength range; and

    a heating tank formed between the transparent member and the wavelength selective member, the heating tank being filled with a heating medium,wherein at least one of the transparent member and the wavelength selective member has a waveform structure on at least one of its upper surface and bottom surface;

    wherein the transparent member has the waveform structure on at least one of the upper surface and the bottom surface of the transparent member in a first cross sectional view, and a pseudo traveling direction of the waveform structure of the transparent member is a first direction, andwherein the wavelength selective member has the waveform structure on at least one of the upper surface and the bottom surface of the wavelength selective member in a second cross sectional view, and a pseudo traveling direction of the waveform structure of the wavelength selective member faces to a second direction substantially orthogonal to the first direction.

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