EP1997154A2 - Cellules solaires multijonctions équipées d'un système homogénéisateur et d'un concentrateur de lumière couplé sans mise en image - Google Patents

Cellules solaires multijonctions équipées d'un système homogénéisateur et d'un concentrateur de lumière couplé sans mise en image

Info

Publication number
EP1997154A2
EP1997154A2 EP07758108A EP07758108A EP1997154A2 EP 1997154 A2 EP1997154 A2 EP 1997154A2 EP 07758108 A EP07758108 A EP 07758108A EP 07758108 A EP07758108 A EP 07758108A EP 1997154 A2 EP1997154 A2 EP 1997154A2
Authority
EP
European Patent Office
Prior art keywords
reflector
solar
designable
primary
solar concentrator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP07758108A
Other languages
German (de)
English (en)
Inventor
Pablo Benitez
Juan Carlos Minano
Maikel Hernandez
Oliver Dross
Aleksandra Cvetkovic
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Light Prescriptions Innovators LLC
Original Assignee
Light Prescriptions Innovators LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Light Prescriptions Innovators LLC filed Critical Light Prescriptions Innovators LLC
Publication of EP1997154A2 publication Critical patent/EP1997154A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0004—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed
    • G02B19/0028—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed refractive and reflective surfaces, e.g. non-imaging catadioptric systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
    • F24S23/70—Arrangements for concentrating solar-rays for solar heat collectors with reflectors
    • F24S23/79—Arrangements for concentrating solar-rays for solar heat collectors with reflectors with spaced and opposed interacting reflective surfaces
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
    • G02B19/0038—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with ambient light
    • G02B19/0042—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with ambient light for use with direct solar radiation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers

Definitions

  • the present invention is concerned with a multi-junction solar cell that employs an optical system to provide extremely high solar flux, resulting in a system that produces very efficient electrical output. More particularly, the invention is directed to a solar energy system that combines a non-imaging light concentrator, or flux booster, with a Kohler homogenizer primary and secondary mirror subsystem, wherein the non-imaging concentrator is efficiently coupled to the mirrors such that uniform irradiance is achieved for high intensity light concentration onto the multi-junction solar cell.
  • FIG. 1 shows such a two-mirror aplanatic system without the non-imaging concentrator.
  • Primary mirror 10 concentrates the light onto the secondary mirror 11, which illuminates the solar cell 12.
  • This system has a clear limitation in that the illumination on the solar cell it can achieve is highly nonuniform, which reduces the cell efficiency and system reliability. This is because the optics is imaging the plane at infinity onto the plane of the target, where the cell is placed, and thus the sun is imaged on the cell.
  • the angular acceptance of this two-mirror aplanatic concentrator is several times (for example 3) greater than the angular size of the sun to allow for tolerances.
  • a Kohler integrator system is used as a photovoltaic concentrator ( Figure 2).
  • the Kohler integrator consists of two imaging optical elements (primary and secondary) with positive focal length (that is, producing a real image of an object at infinity).
  • the secondary is placed at the focal plane of the primary, and the secondary images the primary onto the cell.
  • the photovoltaic Kohler concentrator is composed of a Fresnel lens 20 as the primary, and a single-surface imaging lens 21 as the secondary, which encapsulates the cell 22, as illustrated in Figure 2.
  • the primary images the sun onto secondary aperture 23.
  • the irradiance distribution on the cell is also uniform, and it will remain unchanged when the sun moves within the acceptance angle (equivalently when the sun image 24 moves within the secondary aperture).
  • the concentration-acceptance angle product that can be attained with this configuration is very limited, because the numerical aperture on the cell is small. Additionally, the system cannot be compact because the optic is refractive and uses a single Kohler integration element.
  • a two mirror Kohler homogenizer optical design produces an ultra-compact solar concentrator with moderate irradiance non-uniformity.
  • the Kohler optics are combined with a multi-junction solar cell system to create a system that produces electrical output with very high efficiency.
  • a plurality of conventional solar cells can be used in place of a multi-junction cell.
  • a variety of Kohler homogenizer and planar optical systems, formed by two mirrors, can provide the necessary components to deliver light to a multi-junction solar cell.
  • radially symmetric mirror segments on both primary and secondary mirrors are pair-wise correlated so that each segment on the primary images the field of view onto the corresponding secondary segment, while the secondary segment in turn, images the primary segment onto the target.
  • a secondary mirror is co-planar with the entrance aperture, and the exit aperture is co- planar with the vertex of the primary mirror.
  • the inter-mirror space is filled with a dielectric with index of refraction n, such that the numerical aperture ("NA") is increased by a factor of n.
  • TIR total internal reflection
  • Figure 1 illustrates the solid-dielectric aplanatic two mirror design disclosed in prior art
  • FIG. 2 illustrates the photovoltaic Kohler concentrator disclosed in prior art
  • Figure 3 illustrates a solid dielectric two-mirror Kohler radial homogenizer optical system
  • Figure 4 illustrates a 3D view of the two-mirror Kohler radial homogenizer optical system of FIG. 3;
  • Figure 5 illustrates the operation of the two-mirror Kohler radial homogenizer optical system when the sun is off-center but still within the design acceptance angle
  • Figure 6 illustrates a non-imaging concentrator added to the two-mirror Kohler radial homogenizer optical system to increase the concentration ratio of the acceptance angle
  • Figure 7 illustrates a two-mirror Kohler radial homogenizer optical system that may be comprised of volumes of different refractive indices
  • Figure 8 illustrates a Kohler homogenizer optical system that may be comprised of volumes of different refractive indices and the Kohler homogenization is done between the two surfaces of the front top dielectric cover;
  • Figure 9 illustrates a Kohler radial homogenizer optical system that may be comprised of volumes of different refractive indices and the Kohler radial homogenization is done between the entry surface and the primary mirror;
  • Figure 10 illustrates a Kohler radial homogenizer optical system that may be comprised of volumes of different refractive indices and the Kohler radial homogenization is done between the entry surface and the secondary mirror;
  • Figure 11 illustrates a Kohler radial homogenizer optical system that may be comprised of volumes of different refractive indices and the Kohler radial homogenization is done between the entry surface and the exit surface;
  • Figure 12 illustrates a Kohler radial homogenizer optical system that may be comprised of volumes of different refractive indices and the Kohler radial homogenization is done between the inner surface of the top cover and the primary mirror;
  • Figure 13 illustrates a Kohler radial homogenizer optical system that may be comprised of volumes of different refractive indices and the Kohler radial homogenization is done between the inner surface of the top cover and the secondary mirror;
  • Figure 14 illustrates a Kohler radial homogenizer optical system that may be comprised of volumes of different refractive indices and the Kohler radial homogenization is done between the inner surface of the top cover and the exit surface;
  • Figure 15 illustrates a Kohler radial homogenizer optical system that may be comprised of volumes of different refractive indices and the Kohler radial homogenization is done between the primary mirror and the exit surface;
  • Figure 16 illustrates a Kohler radial homogenizer optical system that may be comprised of volumes of different refractive indices and the Kohler radial homogenization is done between the secondary mirror and the exit surface;
  • Figure 17 illustrates the shaping of the exit surface to improve the uniformity of the system when the sun is on axis
  • FIG. 3 An optical system constructed in accordance with one embodiment of the invention is shown in Figure 3 as a most preferred embodiment.
  • the entrance aperture 30 and the exit aperture 36 can be flat.
  • Segmented secondary mirror 32 is substantially co-planar with the entrance aperture 30 of a primary mirror 31.
  • the segments on the primary Ia, 2a, etc. are essentially parabolic, each with a focus at the associated mirror segment Ib, 2b, etc. on the secondary and along the vertical axis (not shown).
  • the secondary mirror segments Ib, 2b, etc. are essentially elliptical with foci at the locations of the associated primary mirror segment and the target. There is continuity in profile but discontinuity in slope in both secondary and primary.
  • the target plane of the combination of the primary mirror 31 and the secondary mirror 32 resides at the cell 33.
  • edges of a given segment of the secondary mirror 32 are designed so that their images at infinity through the associated primary segment match the design acceptance angle.
  • the edges of a given segment of the primary are designed so that their images on the target through the associated secondary segment match the cell-size. Since the segments on the primary are uniformly illuminated, the illumination on the cell is also uniform in two dimensions.
  • the mirror segments can also be configured to optimize global performance.
  • the parabola or ellipses focus position and parabola axis could be considered a parameter and a multiparameter optimization program can optimize the acceptance angle of the whole system.
  • the parabola axis could be chosen to coincide with one of the edges of the acceptance angle and its focus placed at one of the edges of the associated secondary mirror, and also the ellipses can have their foci coinciding with the edges of the cell and of the associated primary mirrors.
  • the actual three-dimensional device is preferably rotationally symmetric, as shown in Figure 4, so that the segments of primary and secondary mirrors form rings. Since the Kohler integration is only done in the meridional cross-section, no uniformity is gained in the sagittal direction. This means that if the acceptance angle is 3 times the solar disk, the local concentration is only 3 times the average. Therefore, for a 500-sun average concentration the maximum local concentration on the cell is 1,500 (which is acceptable).
  • the irradiance pattern on each annular segment of the secondary mirror is a thin ring centered on the segment with about 100-150 suns concentration, which is also acceptable for mirror durability.
  • Dispersion due to the variation of the refractive index of the dielectric material used significantly limits the solar flux concentration with reasonable acceptance angle (>15 mrad half angle) by a well-designed flat Fresnel lens to ⁇ 150 suns.
  • the angular dispersion due to a single refraction is:
  • n is the relative refractive index at the interface and ⁇ is the refracted angle.
  • the entry surface 30 there are two refractive surfaces: the entry surface 30 and the exit surface 36.
  • the entry surface 30 if the refractive entrance aperture 30 is flat, the incidence angle is limited to the acceptance angle and equation (1) states (approximating the tangent function by its argument) that relative dispersion of the refraction angle equals (in absolute value) to relative dispersion of the refractive index, which is below 1% in most optical dielectrics.
  • equation (1) states (approximating the tangent function by its argument) that relative dispersion of the refraction angle equals (in absolute value) to relative dispersion of the refractive index, which is below 1% in most optical dielectrics.
  • the second refraction the effect is even smaller since the angular acceptance at that surface is very wide (close to ⁇ 90°).
  • Equation (1) indicates some flexibility in design.
  • the dielectric/air interface (the entrance aperture 12) does not have to be strictly normal to the beam. A modest inclination is allowable, just as long as chromatic effects, as determined by Equation (1) are kept reasonably in bounds.
  • the entrance surface is not flat, the rays should be traced through them in the design. For example, if the segments of the primary are parabolas when the entrance surface is flat, then when it is non-flat, its shape should be calculated so as to enable the impinging parallel rays, after the refraction on the non-flat aperture, to be focused onto the associated secondary.
  • This calculation is called generalized Cartesian Oval, which in general solves the inverse problem of calculating the optical surface (reflective or refractive) that couples the rays normal to two given wavefronts.
  • the same considerations apply to the change of the exit surface from flat.
  • a hemispherical shape, for instance, could also be prescribed.
  • the value of ⁇ 2 is chosen to satisfy a subsidiary condition, such as maintaining total internal reflection (TIR) on the nonimaging concentrator sides or limiting angles of irradiance onto a multi- junction cell.
  • TIR total internal reflection
  • the concentration or flux boost of the terminal stage approaches the fundamental limit of (sin ⁇ a/sin ⁇ i) .
  • the non-imaging concentrator can be a known tailored non-imaging concentrator or a flow line concentrator.
  • planar all-dielectric optical system presented here embodies inexpensive high-performance forms that should be capable of (a) concentrating the solar radiation with acceptable nonuniform irradiance levels, (b) incurring negligible chromatic aberration even at ultra-high concentration, (c) passive cooling of the cell, (d) accommodating liberal optical tolerances, (e) mass production with existing glass and polymeric molding techniques, and (f) high compactness.
  • Figure 7 illustrates a two-mirror Kohler radial homogenizer optical system that may be comprised of volumes 70, 71, 72 and 73 of different refractive indices. If 72 is air and 70 and 71 are of the same dielectric material (so interface 702 does not exist), the device in Figure 7 reduces to that in Figure 3. The optical design of the device in Figure 7 is done in substantially the same way as described for the design of Figure 3.
  • 71 is air, in which the optical losses due to absorption in that medium are eliminated.
  • the flat cover 70 prevents dust from accumulating in the system and protects mirrors from the environment.
  • medium 73 is also air, the cell is not encapsulated, which increases the system optical efficiency since the Fresnel reflection on the interface 705 is eliminated.
  • the prescribed surface 705 of the encapsulating dielectric material will be considered in the design as a prescribed surface through which the rays are traced.
  • the encapsulating lens can be made of glass or transparent plastic, and the cell coupled to it with a gel or a silicon rubber. In this case, an additional interface (without a specific optical function) will appear.
  • any other two surfaces of the five surfaces 701, 702, 703, 704 and 705 in Figure 7 could be designed. Therefore, nine alternative families of devices are illustrated in Figure 8 through Figure 16. Other like configurations can be established using combinations and variations by employing the principals of the invention. For all this cases, the design can be generated in 4 steps:
  • the target and acceptance angle can be scaled down to converge to zero, and then the resulting two surfaces will be aplanatic (i.e., stigmatic and fulfilling the Abbe sine condition). If the calculated surfaces are not manufacturable, a new selection of the three prescribed surfaces in step (1) is done,
  • the exit surface profile When the exit surface is to be selected, it is possible to shape it to even improve the uniformity of the Kohler homogenizing device when the sun is on-axis, provided that there is a significant refractive index difference at both sides of the exit surface.
  • Figure 17 illustrates how this can be accomplished.
  • the exit surface profile In order to provide the uniformity improvement, the exit surface profile should have a concavity 171 or a convexity 172 at the center when the cell side 173 has respectively, a higher or lower refractive index These profiles cause rays 174 going to the cell-center to be deflected and strike closer to the cell rim.
  • Figure 8 illustrates a Kohler homogenizer optical system that can be comprised of volumes 80, 81, 82 and 83 of different refractive indices; and the Kohler homogenization is done between the two surfaces 801 and 802 of the front top dielectric cover 80.
  • the medium 82 is air and the lenses in cover 80 are top-down symmetric.
  • the Kohler homogenization can be only in the radial direction.
  • the Kohler homogenization can be done in both the radial and sagittal directions using with rotationally symmetric lens units in the lens array, displaced either in a rectangular or hexagonal pattern. This embodiment would increase further the illumination homogeneity of the lens.
  • Figure 9 illustrates a Kohler radial homogenizer optical system that can be composed of volumes 90, 91, 92 and 93 of different refractive indices; and the Kohler radial homogenization is done between the entry surface 901 and the primary mirror 903.
  • the focal length and pitch of the lens and mirror segment will decrease from the optical axis to the rim, due to the progressively smaller separation of the Kohler integrator pairs.
  • Figure 10 illustrates a Kohler radial homogenizer optical system that is comprised of volumes 100, 101, 102 and 103 of different refractive indices; and the Kohler radial homogenization is done between the entry surface 1001 and the secondary mirror 1004.
  • material 101 is air and dielectric material materials 100 and 102 are identical (so interface 1002 does not exist), so it can be manufactured as a single piece.
  • Figure 11 illustrates a Kohler radial homogenizer optical system that is comprised of volumes 110, 111, 112 and 113 of different refractive indices and the Kohler radial homogenization is done between the entry surface 1101 and the exit surface 1105.
  • the material 112 is air, so the lens segments of exit surface 1105 are concave.
  • the material 112 is a dielectric and 113 is air, so the lens segments of exit surface 1105 are convex.
  • Figure 12 illustrates a Kohler radial homogenizer optical system that is comprised of volumes 120, 121, 122 and 123 of different refractive indices; and the Kohler radial homogenization is done between the inner surface 1202 of the top cover and the primary mirror 1203. Also in this case, the focal length and pitch of the lens and mirror segment will decrease from the optical axis to the rim, due to the progressively smaller separation of the Kohler integrator pairs.
  • Figure 13 illustrates a Kohler radial homogenizer optical system that is comprised of volumes 130, 131, 132 and 133 of different refractive indices; and the Kohler radial homogenization is done between the inner surface of the top cover 1302 and the secondary mirror 1304.
  • material 1301 is air and dielectric material materials 1300 and 1302 are identical (so interface 1002 does not exist), so that it can be manufactured as a single piece.
  • Figure 14 illustrates a Kohler radial homogenizer optical system that is comprised of volumes 140, 141, 142 and 143 of different refractive indices; and the Kohler radial homogenization is done between the inner surface of the top cover 1402 and the exit surface 1405.
  • material 141 is air and dielectric material materials 140 and 142 are identical (so interface 1402 does not exist), so that it can be manufactured as a single piece.
  • the material 112 is air, so the lens segments of exit surface 1405 are concave.
  • the material 142 is a dielectric and 143 is air, so the lens segments of exit surface 1405 are convex.
  • Figure 15 illustrates a Kohler radial homogenizer optical system that is comprised of volumes 150, 151, 152 and 153 of different refractive indices; and the Kohler radial homogenization is done between the primary mirror 1503 and the exit surface 1505.
  • the material 152 is air, so the lens segments of exit surface 1505 are concave.
  • the material 152 is a dielectric and 153 is air, so the lens segments of exit surface 1505 are convex.
  • Figure 16 illustrates a Kohler radial homogenizer optical system that is comprised of volumes 160, 161, 162 and 163 of different refractive indices; and the Kohler radial homogenization is done between the secondary mirror 1604 and the exit surface 1605.
  • the material 162 is air, so the lens segments of exit surface 1605 are concave.
  • the material 162 is a dielectric and 163 is air, so the lens segments of exit surface 1605 are convex.
  • Figures 17A & B illustrates how to provide the uniformity-improvement: the exit surface profile should have a concavity 171 or a convexity 172 at the center, when the cell side 173 has a higher or lower refractive index, respectively. This profiles cause the rays 174 going to the cell-center to be deflected closer to the cell edge. It should be understood that various changes and modifications referred to in the embodiment described herein would be apparent to those skilled in the art. Such changes and modification can be made without departing from the spirit and scope of the present invention.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Chemical & Material Sciences (AREA)
  • Thermal Sciences (AREA)
  • Sustainable Energy (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Photovoltaic Devices (AREA)
  • Optical Elements Other Than Lenses (AREA)

Abstract

Les modes de réalisation de cette invention fournissent des procédés et des systèmes destinés à homogénéiser l'éclairage d'une cible. Certains de ces modes de réalisation fournissent des concentrateurs solaires à réflecteurs doubles symétriques rotationnels comportant un réflecteur primaire concave à direction cible dirigée vers le soleil afin de recevoir un rayonnement optique dans un angle de champ lointain compris dans un angle d'acceptation et de rediriger le rayonnement de façon centrale et vers le haut générant une concentration de flux, un réflecteur secondaire positionné de façon coaxiale avec le réflecteur primaire afin de recevoir ce rayonnement redirigé et de le rediriger de façon centrale et vers le bas générant des rayons solaires à concentration de flux, et une zone cible centrale recevant ces rayons solaires concentrés, des sections transversales de ces réflecteurs primaire et secondaire contenant tous deux plusieurs segments établissant une correspondance entre des paires de segment, chacun de ces segments du réflecteur primaire de manière à imager cet angle d'acceptation sur le segment correspondant du réflecteur secondaire afin de l'imager sur la zone cible.
EP07758108A 2006-03-08 2007-03-07 Cellules solaires multijonctions équipées d'un système homogénéisateur et d'un concentrateur de lumière couplé sans mise en image Withdrawn EP1997154A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US78052006P 2006-03-08 2006-03-08
PCT/US2007/063522 WO2007103994A2 (fr) 2006-03-08 2007-03-07 Cellules solaires multijonctions équipées d'un système homogénéisateur et d'un concentrateur de lumière couplé sans mise en image

Publications (1)

Publication Number Publication Date
EP1997154A2 true EP1997154A2 (fr) 2008-12-03

Family

ID=38475842

Family Applications (2)

Application Number Title Priority Date Filing Date
EP07758108A Withdrawn EP1997154A2 (fr) 2006-03-08 2007-03-07 Cellules solaires multijonctions équipées d'un système homogénéisateur et d'un concentrateur de lumière couplé sans mise en image
EP07758185A Withdrawn EP2008311A2 (fr) 2006-03-08 2007-03-08 Cellules solaires multijonctions équipées d'un système homogénéisateur et d'un concentrateur de lumière couplé sans mise en image

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP07758185A Withdrawn EP2008311A2 (fr) 2006-03-08 2007-03-08 Cellules solaires multijonctions équipées d'un système homogénéisateur et d'un concentrateur de lumière couplé sans mise en image

Country Status (3)

Country Link
EP (2) EP1997154A2 (fr)
JP (1) JP2009529791A (fr)
WO (2) WO2007103994A2 (fr)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8283554B2 (en) * 2005-12-19 2012-10-09 Corning Incorporated Method and apparatus for concentrating light
US20080185039A1 (en) 2007-02-02 2008-08-07 Hing Wah Chan Conductor fabrication for optical element
CN102282429A (zh) * 2008-11-18 2011-12-14 光处方革新有限公司 科勒聚光器
US8960120B2 (en) 2008-12-09 2015-02-24 Palo Alto Research Center Incorporated Micro-extrusion printhead with nozzle valves
US8866000B2 (en) * 2009-07-31 2014-10-21 Corey A. Weiss Ultra-efficient energy conversion device for converting light to electricity by rectifying surface plasmon polaritons
WO2011038450A1 (fr) * 2009-09-29 2011-04-07 Paul Andre Guignard Génération d'électricité solaire
WO2012058304A2 (fr) * 2010-10-28 2012-05-03 Banyan Energy, Inc. Éléments optiques de réorientation destinés à des systèmes de concentration et d'éclairage
US8884156B2 (en) 2010-11-29 2014-11-11 Palo Alto Research Center Incorporated Solar energy harvesting device using stimuli-responsive material
US8040609B1 (en) 2010-11-29 2011-10-18 Palo Alto Research Center Incorporated Self-adjusting solar light transmission apparatus
GB2488113A (en) * 2011-02-14 2012-08-22 Geoffrey David Horn Apparatus for increasing the output power of solar cells
JP2013211487A (ja) * 2012-03-30 2013-10-10 Sharp Corp 二次レンズ、太陽電池実装体、集光型太陽光発電ユニット及び集光型太陽光発電モジュール
CN104205620A (zh) * 2012-03-30 2014-12-10 夏普株式会社 二次透镜、太阳能电池安装体、聚光型太阳能发电单元、聚光型太阳能发电装置以及聚光型太阳能发电模块
US8752380B2 (en) 2012-05-22 2014-06-17 Palo Alto Research Center Incorporated Collapsible solar-thermal concentrator for renewable, sustainable expeditionary power generator system
CN102768400B (zh) * 2012-08-07 2015-05-06 姜莹 无均光棒的反射太阳能聚光器
WO2014069678A1 (fr) * 2012-10-29 2014-05-08 주식회사 애니캐스팅 Élément optique secondaire à fonction de protection de support et module de cellules solaires à concentration doté de celui-ci
JP2015099336A (ja) * 2013-11-20 2015-05-28 株式会社東芝 光学素子および光学装置
CN103940591B (zh) * 2014-04-17 2016-08-24 湘电集团有限公司 一种碟式太阳能聚光器聚焦精度的检测装置
JP6670991B2 (ja) * 2015-03-23 2020-03-25 パナソニックＩｐマネジメント株式会社 太陽電池
AU2021288793A1 (en) * 2020-06-08 2023-02-02 Navitus, Inc. Solar concentrator
CN114527558A (zh) * 2022-02-14 2022-05-24 华北电力大学 一种考虑太阳张角的类球面反射聚光器

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5916242B2 (ja) * 1974-06-14 1984-04-14 工業技術院長 太陽放射エネルギ−用反射鏡
US4114592A (en) * 1976-08-16 1978-09-19 The United States Of America As Represented By The United States Department Of Energy Cylindrical radiant energy direction device with refractive medium
US4350412A (en) * 1980-04-07 1982-09-21 Georgia Tech Research Institute Fresnel spiral reflector and method for making same
GB8510706D0 (en) * 1985-04-26 1985-06-05 Marconi Co Ltd Solar cell arrays
US5153780A (en) * 1991-06-10 1992-10-06 The United States Of America As Represented By The United States Department Of Energy Method and apparatus for uniformly concentrating solar flux for photovoltaic applications
JPH06342922A (ja) * 1993-05-31 1994-12-13 Iwasaki Electric Co Ltd 反射型受光器
US5540216A (en) * 1994-11-21 1996-07-30 Rasmusson; James K. Apparatus and method for concentrating radiant energy emanated by a moving energy source
US6225551B1 (en) * 1999-09-02 2001-05-01 Midwest Research Institute Multi-facet concentrator of solar setup for irradiating the objects placed in a target plane with solar light
JP2002289900A (ja) * 2001-03-23 2002-10-04 Canon Inc 集光型太陽電池モジュール及び集光型太陽光発電システム
US6691701B1 (en) * 2001-08-10 2004-02-17 Karl Frederic Roth Modular solar radiation collection and distribution system
US6668820B2 (en) * 2001-08-24 2003-12-30 Solargenix Energy Llc Multiple reflector solar concentrators and systems
US6818818B2 (en) * 2002-08-13 2004-11-16 Esmond T. Goei Concentrating solar energy receiver
US7377671B2 (en) * 2003-02-04 2008-05-27 Light Prescriptions Innovators, Llc Etendue-squeezing illumination optics
US7906722B2 (en) * 2005-04-19 2011-03-15 Palo Alto Research Center Incorporated Concentrating solar collector with solid optical element

Also Published As

Publication number Publication date
WO2007103994A3 (fr) 2008-04-17
WO2007104028A3 (fr) 2008-04-03
WO2007103994A2 (fr) 2007-09-13
WO2007104028A2 (fr) 2007-09-13
EP2008311A2 (fr) 2008-12-31
JP2009529791A (ja) 2009-08-20

Similar Documents

Publication Publication Date Title
US8631787B2 (en) Multi-junction solar cells with a homogenizer system and coupled non-imaging light concentrator
WO2007103994A2 (fr) Cellules solaires multijonctions équipées d'un système homogénéisateur et d'un concentrateur de lumière couplé sans mise en image
US20080047605A1 (en) Multi-junction solar cells with a homogenizer system and coupled non-imaging light concentrator
US8101855B2 (en) Optical concentrator, especially for solar photovoltaics
US8000018B2 (en) Köhler concentrator
KR20100072005A (ko) 광 에너지의 집중, 집결 및 조명을 위한 소형 광소자
US20090231739A1 (en) Matrix formulation of kohler integrating system and coupled non-imaging light concentrator
US20130104984A1 (en) Monolithic photovoltaic solar concentrator
US20100307586A1 (en) Reflective free-form kohler concentrator
EP1866971A2 (fr) Piles solaires a jonctions multiples dotees d'un systeme d'imagerie aplanetique et d'un concentrateur de lumiere couple sans mise en image
WO2002075225A2 (fr) Concentrateur par reflexion a irradiation uniforme
Fu et al. Secondary optics for Fresnel lens solar concentrators
WO2010131164A2 (fr) Concentrateur solaire
CN107078688A (zh) 使用光伏二阶聚光的混合槽太阳能发电系统
Hernández et al. High-performance Köhler concentrators with uniform irradiance on solar cell
TWI473279B (zh) 太陽能集光器
CN112187166B (zh) 一种高效能聚光太阳能电池板
US20150101667A1 (en) Concentrator for polychromatic light
US10641929B2 (en) Planar optical module for tracking and collimating incident light
TWI578024B (zh) 集光模組
EP2839518A1 (fr) Concentrateur de lumière polychromatique
Beniítez et al. New high-concentration mirror-based kohler integrating optical design for multijunction solar cells
KR101469583B1 (ko) 태양광 집광 장치
Liu et al. Optical design of a new combo solar concentrator
US20130068281A1 (en) Offset light concentrating

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20081008

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

RIN1 Information on inventor provided before grant (corrected)

Inventor name: BENITEZ, PABLO

Inventor name: DROSS, OLIVER

Inventor name: HERNANDEZ, MAIKEL

Inventor name: MINANO, JUAN CARLOS

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Effective date: 20110216