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公开(公告)号：FR2346821A1
公开(公告)日：1977-10-28
申请号：FR7525826
申请日：1975-08-11
Applicant: IBM
Inventor： CUOMO JEROME J , WOODALL JERRY M , ZIEGLER ET JAMES F
Abstract: An efficient converter of photon energy to heat has been devised comprising a dense array of metal whiskers grown with spacings between the whiskers of a few wavelengths of visible light. The material selected, and tungsten is exemplary of such materials, has low emissivity, but achieves significant optical absorption by trapping the light impinging on the dense array by a geometric maze effect. The characteristics of the surface are excellent for the conversion of solar energy to heat.
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