发明名称 |
Light confining cavity with angular-spatial limitation of the escaping beam |
摘要 |
A light confining cavity collects much of the radiation reflected by a receiver, absorbing it imperfectly, and casts it again on the same receiver or on other receivers by means of an optical system. Only light in a bundle of rays of limited angular spread can escape from this cavity, which allows an entry aperture relatively large. Thus, the irradiance at the entry aperture may be low, and in some cases even lower than the irradiance at the absorber. In this way the requirements for the cavity materials and for the concentrating system feeding light to the cavity can be relaxed. The invention is of special interest in photovoltaic conversion devices because it improves the absorption of the solar cells and achieves higher conversion efficiency for photons of different energies by using solar cells of different materials.
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申请公布号 |
US5291331(A) |
申请公布日期 |
1994.03.01 |
申请号 |
US19910733147 |
申请日期 |
1991.07.19 |
申请人 |
MIANO, JUAN C.;LUQUE, ANTONIO |
发明人 |
MIANO, JUAN C.;LUQUE, ANTONIO |
分类号 |
F24J2/07;G02B5/00;G02B5/02;G02B5/10;H01L31/052;(IPC1-7):G02B17/00 |
主分类号 |
F24J2/07 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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