• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A point focus radiation concentrator (38) using two linear echelon surfaces (40, 42) crossed at approximately 90 degrees with the two linear echelon surfaces (40, 42) having a generally cylindrical shape with a radius of curvature (52) approximately equal to the focal distance (10). The two echelon surfaces (40, 42) may be formed on separate sheets positioned in close proximity to each other or may be formed on opposite sides of a single sheet. The cross section of the curved concentrator surface may be circular or other aspherical shape, such as parabolic, ellipsoid and hyperbolic.
    公开号:SU1271380A3
    申请号:SU813352399
    申请日:1981-11-03
    公开日:1986-11-15
    发明作者:Ф.Вандерверф Деннис
    申请人:Миннесота Майнинг Энд Мануфакчуринг Компани (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to instrumentation, in particular to concentrators of parallel beams of solar radiation. The aim of the invention is to improve the efficiency of the device. FIG. presents a device for concentrating radiation to a point ™ focus; in fig. 2 - ray path through the first linear complex surface; FIG. 3 is the same through a second linear complex surface; in fig. 4 shows the dependence of the angles of the linear complex elements on the distance Yanin 1 on the origin of coordinates (FIG. 1) for the prototype and invention; in fig. 5 dependence illustrating the distribution of energy in the spot as a function of the distance from the center according to the prototype; Fig. 1 shows a centralizer according to the invention with different degrees of approximation of the shape of a linear complex surface to the calculated one; ya fig. 9 is a radiation concentrator made on the same element with two complex surfaces on its opposite sides. The concentrator (Fig. 1) has a maximum concentration point in its focus 2 and two linear complex surfaces 3 and 4) are orthogonal to each other, one of which is oriented along the cylinder generator. A schematic representation of the beam through the first linear complex surface is shown in section XZ Fig. 2. The angles of the individual linear complex elements 3 for the first linear complex surface in order to effectively converge radiation to a point must be fulfilled according to the formula for 1: arete G: .Q buL4iS Gf p.soz (cf; -F;) is co8 (FGG where ri (j is the calculated coefficient of refraction of the material used for the linear complex surface 3, the same data is shown in FIG. 3 for the linear complex surface 4, with the angle of each element fi calculated Jbi arc sin (nj.sin arctg g;) Using the above formulas, calculate the initial values for the angles of the complex elements of the concentrators, then build three-dimensional paths for all the rays passing along the lines 5 and 6, and the angles i and {b are refined until all the rays converge at point focus 2. In FIG. 4 shows specific values for ck; and L linear complex elements 3 and 4, obtained using this calculation. The vertical axis shows the dimensions in degrees, and the horizontal axis shows the relative values of f. f is measured diagonally from the center, where / O, to the corner point, where / 1. In FIG. Figure 5 shows the dependence of the distribution of partial energy if the angles of the linear elements are chosen in accordance with the above calculation, from which it follows that the radius of the spot in which 95% of the energy is focused is 0.01 units, which is two orders of magnitude better than prototype In the manufacture of a large concentrator using the technique of partitioning the material, significant savings can be obtained due to the fact that the matrices are not completely equivalent, i.e. semi-equivalent, which means that with a difference in the angles o / ;, and i, which is less than 0.6 o / j, they are equivalent, and for their large values, they are not equivalent (see, Fig. 6, where the radius of concentration is 95% energy is about 0,027 units). Fig. 7 shows the energy distribution in the case of a fully equivalent profile, the linear complex surfaces are identical, and the angles and i are equal to each other over the entire interval f from 0 to I o. To increase the efficiency of the concentrator in the case of a fully equivalent profile. the cross section of the concentrator is a two-dimensional aspherical shape, the cross section of which is described by the expression I + V - (K + 1) / where C is the curvature in the vertex; K - constant taper. When K O is the cross-section of the angles, when K -1 is hyperbolic.
    with elliptical5 with K 1, a paribolic, with an elongated ellipse.
    .12713804
    The resulting distribution of the fractional energy with an aspherical surface profile is shown in FIG. eight,
    50
    DT Qf 0.5 fl. I 0.5 0.0 0.7. 0.8 O, ff 5;
    c: riel
    0 (5
    fii
    7.5,0
    JP cfjuff.5
    0.1
     0.01 D, 0f5
    Cpt / ff.6
    oA
    95
    o, a {K
    0, O2S C
    qots odgy gyuff.7
    权利要求:
    Claims (2)
    [1]
    1. DEVICE FOR CONCENTRATION OF RADIATION TO A POINT FOCUS, containing two elements with a relief section in the form of rectangular triangles whose hypotenuse angles satisfy the ratio of Fresnel lenses in the meridional plane, facing relief sections, oriented to each other, and oriented at an angle 90 °, characterized in that, in order to increase its efficiency, the surfaces are made in the shape of a circular cylinder with a radius equal to the focal length of the device.
    [2]
    2. The device according to π. 1, characterized in that two embossed sections are made on opposite sides of the elements.
    SU. „, 1271380 AZ
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1271380A3|1986-11-15|Device for concentration of radiation to point focus
    US4114592A|1978-09-19|Cylindrical radiant energy direction device with refractive medium
    US2853617A|1958-09-23|Focusing crystal for x-rays and method of manufacture
    US5982562A|1999-11-09|Lenses formed by arrays of reflectors
    US5969864A|1999-10-19|Variable surface relief kinoform optical element
    CN106094086B|2019-10-29|A kind of transmission grating
    WO2011079856A1|2011-07-07|Photovoltaic concentrator with optical stepped lens and optical stepped lens
    Riveros et al.1986|Graphical analysis of sun concentrating collectors
    GB1560307A|1980-02-06|Reflecting devices for concentrating a waveflux
    Awasthi et al.2020|Design of Fresnel lens with spherical facets for concentrated solar power applications
    Sutter et al.2017|Aberration-free aspherical lens shape for shortening the focal distance of an already convergent beam
    JP6249175B2|2017-12-20|Device for concentrating energy
    US4344673A|1982-08-17|Focusing reflector
    RU2576752C2|2016-03-10|Solar module with concentrator
    CN107238940B|2020-07-07|Lobster eye structure with micro-shaping surface
    JPWO2015156120A1|2017-04-13|Micro lens array
    RU184726U1|2018-11-07|X-RAY PLANAR AXICON
    CN108646330A|2018-10-12|A kind of full impregnated zone plate
    CN106773074B|2020-07-10|Refractive optical element for generating rotationally symmetrical combined focusing light field
    KR20200017880A|2020-02-19|Silicon wafer enhanced the absorption of sunlight by time of day through symmetrical continuous bending process and solar sell using thereof
    JP2000249805A|2000-09-14|Condenser lens with discontinuous line
    Kushneryov et al.2021|Some Features of Generalized Mikaelian Lens with Negative Refractive Index
    RU2572167C1|2015-12-27|Solar module with concentrator |
    Avendaño-Alejo2016|Design of Fresnel lenses by using arbitrary surfaces
    AU680768B2|1997-08-07|Lenses formed by arrays of reflectors
    同族专利:
    公开号 | 公开日
    EP0051932B1|1984-08-22|
    JPS57105703A|1982-07-01|
    ES269246Y|1984-01-01|
    IL64197D0|1982-02-28|
    JPH0547801B2|1993-07-19|
    DE3165700D1|1984-09-27|
    CA1160088A|1984-01-10|
    ES269246U|1983-06-16|
    AU548406B2|1985-12-12|
    US4385808A|1983-05-31|
    EP0051932A1|1982-05-19|
    AU7706481A|1982-05-13|
    BR8107123A|1982-07-20|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3203306A|1961-09-25|1965-08-31|Lefferts Peter|Optical ray concentrator|
    US3334958A|1963-08-07|1967-08-08|Minnesota Mining & Mfg|Nested fresnel-type lenses|
    JPS53984Y2|1972-06-10|1978-01-12|
    DE2435860B2|1974-07-25|1977-10-20|Deutsche Gold- U. Silber-Scheideanstalt, Vorm. Roessler, 6000 Frankfurt|PROCESS FOR THE PRODUCTION OF FINE PARTICLE HYDROPHOBIC SILICACIDS OR SILICATES|
    US4118114A|1974-08-21|1978-10-03|Minnesota Mining And Manufacturing Company|Low-glare overhead projector|
    US4108540A|1976-06-17|1978-08-22|Minnesota Mining And Manufacturing Company|Refractor-reflector radiation concentrator|
    DE7620151U1|1976-06-25|1976-11-04|Schmidt, Gunter Adolf, 8000 Muenchen|SOLAR MOTOR|
    JPS5357054A|1976-11-02|1978-05-24|Toshiba Corp|Optical system of fresnel lens|
    US4069812A|1976-12-20|1978-01-24|E-Systems, Inc.|Solar concentrator and energy collection system|
    US4315671A|1977-10-03|1982-02-16|Bunch Jesse C|Lenticulated lens|
    JPS5524562U|1978-08-05|1980-02-16|
    JPS6249776B2|1978-09-06|1987-10-21|Sony Corp|
    US4257401A|1980-01-02|1981-03-24|Daniels Ronald M|Solar heat collector|
    US4301321A|1980-08-11|1981-11-17|Spectrolab|Two-axis focusing energy concentrator|US4800868A|1978-02-22|1989-01-31|Minnesota Mining And Manufacturing Company|Tilted panel linear echelon solar collector|
    US4934798A|1983-03-16|1990-06-19|Bunch Jesse C|Lens deflection system|
    JPS60208725A|1984-04-03|1985-10-21|Hiroyoshi Mori|Polarizing and converging device|
    US4665895A|1984-09-21|1987-05-19|Mcdonnell Douglas Corporation|Ellipsoidal solar dish concentrator|
    US4545366A|1984-09-24|1985-10-08|Entech, Inc.|Bi-focussed solar energy concentrator|
    CH667744A5|1985-05-24|1988-10-31|Cerberus Ag|INFRARED INTRUSION DETECTOR.|
    US4711972A|1985-07-05|1987-12-08|Entech, Inc.|Photovoltaic cell cover for use with a primary optical concentrator in a solar energy collector|
    CA1286270C|1985-09-09|1991-07-16|Roger H. Appeldorn|Refracting solar energy concentrator and thin flexible fresnel lens|
    JPH021701U|1987-11-11|1990-01-08|
    US4896953A|1988-08-08|1990-01-30|Minnesota Mining And Manufacturing Company|Anamorphic wide angle safety lens|
    US5040883A|1989-10-30|1991-08-20|Minnesota Mining And Manufacturing Company|Light fixture with beam shaping lens|
    US5235467A|1990-03-23|1993-08-10|Zeni Lite Buoy Co., Limited|Cylindrical lens and a manufacturing method for the same|
    US5286305A|1992-06-15|1994-02-15|Laing Johannes N|Photovoltaic power plant|
    DE29508623U1|1995-05-24|1996-09-19|Hohe Gmbh & Co Kg|Wide angle lens for vehicle rear windows|
    US6481859B1|1998-07-21|2002-11-19|Levan Tsintsadze|Radiant energy concentrator|
    WO2001055650A2|2000-01-20|2001-08-02|Bd Systems, Llc|Self tracking, wide angle, solar concentrators|
    US8689784B2|2006-09-14|2014-04-08|James Matthew Monsebroten|Solar concentrator system|
    US20080236569A1|2007-03-26|2008-10-02|Rocco Joseph Tuccio|System and Method for Concentrating Sunlight|
    US20100175685A1|2008-07-14|2010-07-15|Robert Owen Campbell|Advanced Tracking Concentrator Employing Rotating Input Arrangement and Method|
    US20100006088A1|2008-07-14|2010-01-14|Robert Owen Campbell|Tracking Concentrator Employing Inverted Off-Axis Optics and Method|
    US20110088684A1|2009-10-16|2011-04-21|Raja Singh Tuli|Solar Energy Concentrator|
    US20120255540A1|2011-04-07|2012-10-11|Hutchin Richard A|Sun tracking solar concentrator|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US06/204,022|US4385808A|1980-11-04|1980-11-04|Point focus refracting radiation concentrator|
    [返回顶部]