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1. WO2012073604 - FRESNEL-FLY'S EYE MICROLENS ARRAYS FOR CONCENTRATING SOLAR CELL

Publication Number WO/2012/073604
Publication Date 07.06.2012
International Application No. PCT/JP2011/073760
International Filing Date 07.10.2011
IPC
G02B 5/18 2006.01
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5Optical elements other than lenses
18Diffracting gratings
G02B 3/00 2006.01
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
3Simple or compound lenses
G02B 3/08 2006.01
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
3Simple or compound lenses
02with non-spherical faces
08with discontinuous faces, e.g. Fresnel lens
H01L 31/052 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
31Semiconductor devices sensitive to infra-red radiation, light, electromagnetic radiation of shorter wavelength, or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
04adapted as photovoltaic conversion devices
052Cooling means directly associated or integrated with the PV cell, e.g. integrated Peltier elements for active cooling or heat sinks directly associated with the PV cells
CPC
G02B 3/0056
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
3Simple or compound lenses
0006Arrays
0037characterized by the distribution or form of lenses
0056arranged along two different directions in a plane, e.g. honeycomb arrangement of lenses
G02B 3/08
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
3Simple or compound lenses
02with non-spherical faces
08with discontinuous faces, e.g. Fresnel lens
H01L 31/0543
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
31Semiconductor devices sensitive to infra-red radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
04adapted as photovoltaic [PV] conversion devices
054Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means
0543comprising light concentrating means of the refractive type, e.g. lenses
Y02E 10/52
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
10Energy generation through renewable energy sources
50Photovoltaic [PV] energy
52PV systems with concentrators
Applicants
  • PANASONIC CORPORATION [JP]/[JP] (AllExceptUS)
  • MIZUYAMA, Yosuke (UsOnly)
Inventors
  • MIZUYAMA, Yosuke
Agents
  • TANAKA, Mitsuo
Priority Data
61/418,54501.12.2010US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) FRESNEL-FLY'S EYE MICROLENS ARRAYS FOR CONCENTRATING SOLAR CELL
(FR) GROUPEMENTS DE MICROLENTILLES EN ŒIL DE MOUCHE DE FRESNEL POUR CELLULE SOLAIRE À CONCENTRATION
(JA) FRESNEL-FLY'S EYE MICROLENS ARRAYS FOR CONCENTRATING SOLAR CELL
Abstract
(EN)
Optical elements, concentrating photovoltaic devices and methods of forming optical elements are provided. An optical element includes a transparent material including a first surface and a second surface opposite the first surface. The first surface has a Fresnel lens and the second surface has a plurality of microlenses corresponding to the Fresnel lens. One of the first surface and the second surface is configured to receive light. The optical element is configured so that light passing through the optical element is separated into a plurality of beamlets via the plurality of microlenses. The Fresnel lens has a height where, at the height of the Fresnel lens, a diffraction efficiency of at least two different wavelengths of the light passing through the optical element is maximized.
(FR)
L'invention porte sur des éléments optiques, sur des dispositifs photovoltaïques à concentration et sur des procédés de formation d'éléments optiques. Un élément optique comprend un matériau transparent comprenant une première surface et une seconde surface opposée à la première surface. La première surface a une lentille de Fresnel, et la seconde surface a une pluralité de microlentilles correspondant à la lentille de Fresnel. L'une de la première surface et de la seconde surface est configurée de façon à recevoir de la lumière. L'élément optique est configuré de sorte qu'une lumière traversant l'élément optique soit séparée en une pluralité de petits faisceaux par l'intermédiaire de la pluralité de microlentilles. La lentille de Fresnel a une hauteur où, à la hauteur de la lentille de Fresnel, un rendement de diffraction d'au moins deux longueurs d'onde différentes de la lumière traversant l'élément optique est maximisé.
(JA)
Optical elements, concentrating photovoltaic devices and methods of forming optical elements are provided. An optical element includes a transparent material including a first surface and a second surface opposite the first surface. The first surface has a Fresnel lens and the second surface has a plurality of microlenses corresponding to the Fresnel lens. One of the first surface and the second surface is configured to receive light. The optical element is configured so that light passing through the optical element is separated into a plurality of beamlets via the plurality of microlenses. The Fresnel lens has a height where, at the height of the Fresnel lens, a diffraction efficiency of at least two different wavelengths of the light passing through the optical element is maximized.
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