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Siding or roofing exterior panels for controlled solar heating

  • US 5,303,525 A
  • Filed: 09/21/1992
  • Issued: 04/19/1994
  • Est. Priority Date: 05/18/1990
  • Status: Expired due to Fees
First Claim
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1. A building exterior panel for a controlled solar heating system comprising:

  • a rigid generally planar sheet of at least partially transparent material,means for securing said sheet on the exterior surface of a building in spaced relation to said surface to provide a passageway for air along the inner side of sheet,means at the top and bottom of said sheet for providing an overlapping seal between adjacent panels,a multiplicity of lenses on the outer surface of said sheet with a pitch of no more than two millimeters for focusing solar radiation passing through said sheet, andmasking means in the path of solar radiation passing through said sheet with a reflecting portion of such radiation having a first direction relative to the plane of said sheet and having windows to permit radiation having a second direction to pass through said sheet, said masking means being spaced from said lenses at approximately the focal lengths thereof,whereby solar radiation impinging on a building partially covered with such panels will selectively be transmitted for energy utilization and other light energy will be reflected.

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