WO2011081553A1 - Procédé de focalisation d'un flux de rayonnement axisymétrique généré par une source de type ondes et système optique pour sa mise en œuvre - Google Patents

Procédé de focalisation d'un flux de rayonnement axisymétrique généré par une source de type ondes et système optique pour sa mise en œuvre Download PDF

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Publication number
WO2011081553A1
WO2011081553A1 PCT/RU2010/000003 RU2010000003W WO2011081553A1 WO 2011081553 A1 WO2011081553 A1 WO 2011081553A1 RU 2010000003 W RU2010000003 W RU 2010000003W WO 2011081553 A1 WO2011081553 A1 WO 2011081553A1
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WO
WIPO (PCT)
Prior art keywords
optical elements
axis
symmetry
optical
radiation
Prior art date
Application number
PCT/RU2010/000003
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English (en)
Russian (ru)
Inventor
Анатолий Алексеевич ЩЕТНИКОВ
Яков Михайлович АШКИНАЗИЙ
Original Assignee
Schetnikov Anatoly Alekseevich
Ashkinazy Yakov Mikhailovich
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.)
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Application filed by Schetnikov Anatoly Alekseevich, Ashkinazy Yakov Mikhailovich filed Critical Schetnikov Anatoly Alekseevich
Publication of WO2011081553A1 publication Critical patent/WO2011081553A1/fr

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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
    • G02B19/0019—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed having reflective surfaces only (e.g. louvre systems, systems with multiple planar reflectors)
    • G02B19/0023—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed having reflective surfaces only (e.g. louvre systems, systems with multiple planar reflectors) at least one surface having optical power
    • 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

Definitions

  • the invention relates to the field of optics and can be used as a means and methods of focusing (in a particular case, collimation) of axisymmetric radiation fluxes generated by a wide range of wave sources.
  • the prior art method for focusing an axisymmetric radiation flux generated by a source of wave nature which consists in the following.
  • the generated radiation flux is divided into a number of elementary beams, for which an integral periodic optical structure with the property of rotational symmetry is used.
  • This structure is organized by a set of identical optical elements with at least one reflective surface in each of them.
  • an elementary beam is extracted from the radiation flux generated by the source and its propagation direction is changed relative to the said radiation flux (RU, N ° 2366866, 2009).
  • An optical system for focusing an axisymmetric radiation flux generated by a wave source is also known in the art.
  • This system includes an integrated periodic optical structure with the property of rotational symmetry. Said structure is organized by means of a set of identical optical elements with at least one reflective surface in each of them. Moreover, each of the mentioned optical elements is spatially formed with the possibility of separation from the stream radiation generated by the source, the elementary beam and the subsequent change in the direction of propagation of the emitted elementary beam relative to the aforementioned radiation flux (RU, N Q 76430, 2008).
  • the technical result of the claimed invention is to reduce energy losses during the implementation of the focusing method by the claimed optical system, with simplification of the technology of focusing (in a particular case, collimation) and the design of means for its implementation.
  • the “method” is solved by the fact that in the method of focusing an axisymmetric radiation flux generated by a wave source of nature, namely, that the generated radiation flux is divided into a number of elementary beams, for which an integral periodic optical structure having a property of rotational symmetry, which is organized by means of a set of identical optical elements with at least one reflecting surface in each of them, while using each of the mentioned optical elements from the radiation flux generated by the source, an elementary beam is extracted and the direction of its propagation relative to the said radiation flux is changed, according to the invention, the reflecting surfaces of the optical elements are arranged in the form of double curvature radially extended from the axis of symmetry of the radiation flux generated by the source, which are limited by continuous spatial curves passing near the specified axis, mainly with at least one common point on the specified axis of symmetry and, through the indicated surfaces, form in each elementary beam a family of oblique rays with focus outside the mentioned axis of symmetry,
  • An integral periodic optical structure is formed with a step of the arrangement of optical elements, which is determined from the condition of ensuring a minimum, mainly complete elimination of the overlay of deflected elementary beams on adjacent optical elements.
  • optical elements it is permissible to use any waveguides known from the prior art whose spatial structure is organized taking into account the conditions described in paragraph 1. formulas.
  • the “device” is solved by the fact that in an optical system for focusing an axisymmetric radiation flux generated by a wave source of nature, including an integrated periodic optical structure having the property of rotational symmetry, which is organized by a set of identical optical elements at least one reflective surface in each of them, with each of the mentioned optical elements space is formed with the possibility of separating an elementary beam from the radiation generated by the source and then changing the propagation direction of the selected elementary beam relative to the radiation stream, according to the invention, the reflective surfaces of the optical elements are functionally a means of forming in each elementary beam a family of oblique rays with a focus outside the aforementioned axis of symmetry, including at infinity, while reflective surfaces are made in the form of over awns double curvature, extended radially from the axis of symmetry of the radiation flux generated by the source, and limited continuous spatial curve passing close to said axis, preferably with at least one common point on said axis of symmetry.
  • the magnitude of the step location of the optical elements in the integrated periodic optical structure 4, as a rule, is calculated from the condition of ensuring the minimum mainly, the complete elimination of the overlap of the rejected elementary beams 3 on adjacent optical elements 5.
  • any waveguides known from the prior art can be used, the spatial structure of which is organized taking into account the conditions described in paragraph 4. formulas.
  • the invention is illustrated by graphic materials.
  • Figure 1 is a General view of one of the possible embodiments of the claimed optical system (integrated optical structure) in isometry.
  • Figure 2 is a plan view of another possible embodiment of an optical system (with a cut off apex, i.e., in the form of a truncated hemispherical structure).
  • FIG 4 diagram of the distribution of illumination after the conversion (focusing) of the radiation flux generated by the source in accordance with the claimed invention (according to the variant of figure 2)
  • 5 is an optical diagram of the propagation of the radiation flux generated by the source (as well as extracted and deflected beams) during its conversion according to the invention.
  • the constituent structures, elements and radiation fluxes (including extracted and deflected beams) of the claimed optical system in graphic materials are indicated by the following positions.
  • the radiation flux 1 is divided into a number of elementary beams 3.
  • an integral periodic optical structure 4 having the property of rotational symmetry is used.
  • This structure 4 is organized by means of a set of identical optical elements 5 with at least one reflective surface in each of them.
  • an elementary beam 3 is separated from the radiation stream 1 generated by the source 2 and its propagation direction is changed relative to the said radiation stream 1.
  • the reflective surfaces of the optical elements 5 are arranged in the form of double curvature surfaces extended in the radial direction from the axis of symmetry 6 of the radiation flux 1 generated by the source.
  • These reflective surfaces are limited to continuous spatial curves 8, passing near the specified axis 6, mainly with at least one common point 7 on the specified axis of symmetry 6 and, through the indicated surfaces, form in each elementary bundle 3 a family of oblique rays with focus F outside the mentioned axis of symmetry 6 , including at infinity.
  • the integrated periodic optical structure 4 is formed with a step of the arrangement of the optical elements 5 in the circumferential direction, which is determined from the condition of ensuring a minimum, mainly complete elimination of the overlap of the deflected elementary beams on adjacent optical elements 5.
  • focusing (in a particular case, collimation) of the radiation flux 1 generated by the source 2 in at least one direction (one region of space) is provided. That is, if source 2 provides a radiation flux 1 (with a vertical axis 6 of symmetry of this flux 1), for example, into a region of space close to the hemisphere, then at the exit from the optical system we get a certain focused (collimated) circular flow in a horizontal region space.
  • the half aperture angle was, for example, 90 °, then at the exit from this structure 4 it should be less than 90 °, and in the extreme case it tends to zero.
  • Optical elements 5 of the optical structure can be made: with reflective, refracting, partially scattering surfaces, in the form of some kind of gradient or diffracting medium, including a set of waveguides.
  • This method of focusing (collimating) the radiation flux 1 in a given region of space is acceptable to any radiation of a wave nature, in particular: electromagnetic, x-ray, sound, etc.
  • the claimed method and device for its implementation can be used in more complex focusing (collimating) optical systems in which the stream concentrated in a limited area of space (by the claimed method and device for its implementation) is subjected to further transformation, for example, changing its direction, with using known from the modern level of technology means and methods.
  • the reflective surface of the adjacent optical element 5 of the periodic structure 4 is organized by a simple rotation in the circumferential direction to a predetermined discrete angle of the previous optical element 5 relative to the axis of symmetry 6.
  • a closed periodic structure 4 having the property rotational symmetry, realizing the aforementioned property, necessary and sufficient for organizing the output angular aperture of the structure under consideration 4 smaller values, in relation to the magnitude of the angular aperture of the same structure 4 at the inlet of stream 1.
  • Optical system for focusing (in a particular case, collimation) axisymmetric radiation flux 1 generated source 2 wave nature includes the following structures and elements.
  • the integrated periodic optical structure 4 having the property of rotational symmetry.
  • This structure 4 is organized by means of a set of identical optical elements 5 with at least one reflective surface in each of them (not conventionally indicated in graphic materials).
  • each of the said optical elements 5 is spatially formed with the possibility of separating from the stream 1 the radiation generated by the source 2, the elementary beam 3 and the subsequent change of the propagation direction of the selected elementary beam 3 relative to the aforementioned radiation stream 1.
  • the reflecting surfaces of the optical elements 5 are functionally a means of forming in each elementary beam 3 a family of oblique rays with focus F outside the mentioned axis of symmetry 6, including at infinity, while the reflecting surfaces are made in the form of double curvature radially extended from the axis of symmetry 6 of the radiation flux 1 generated by the source 2, and are limited by continuous spatial curves 8, passing near the specified axis 6, mainly with at least one 7 bschey point on said axis of symmetry 6.
  • the magnitude of the arrangement step (in the circumferential direction) of the optical elements 5 in the integral periodic optical structure 4, as a rule, is formed with the arrangement of the optical elements, which is determined from the condition of ensuring the minimum, mainly complete elimination of the rejected elementary beams 3 on adjacent optical elements 5 .
  • optical elements 5 can be used any known from the prior art waveguides, the spatial structure of which is organized taking into account the conditions described in paragraph 4. formulas.
  • the claimed objects of the invention can find wide application in various fields of science and technology for focusing (in a particular case, collimation) the radiation flux of a wave nature

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
  • Optical Integrated Circuits (AREA)
  • Optical Couplings Of Light Guides (AREA)

Abstract

L'invention concerne un procédé qui consiste à diviser un flux de rayonnement (1) en une série de faisceaux élémentaires (3). A cette fin, on utilise une structure optique (4) ayant une propriété de symétrie de rotation. La structure (4) se présente sous forme d'un ensemble d'éléments optiques identiques (5) comprenant au moins une surface réfléchissante. Un faisceau élémentaire (3) est extrait du flux (1) à l'aide desdits éléments optiques (5), et sa direction de propagation est modifiée par rapport au flux (1). Les surfaces réfléchissantes des éléments optiques (5) se présentent sous forme de surfaces ayant une double courbure et s'étendent dans une direction radiale depuis l'axe de symétrie (6) du flux (1). Les surfaces réfléchissantes des éléments optiques (5) sont délimitées par des courbes spatiales continues (8) passant à proximité dudit axe (6), et ces surfaces permettent de former dans chaque faisceau élémentaire (3) un groupe de rayons obliques ayant une focale F située au-delà des limites de l'axe de symétrie (6). Le système optique possède les structures et éléments suivants : une structure optique (4) ayant une propriété de symétrie de rotation. La structure (4) se présente sous forme d'un ensemble d'éléments optiques identiques (5) comprenant chacun au moins une surface réfléchissante. Chacun des éléments optiques (5) est réalisé de manière à séparer un faisceau élémentaire (3) du flux de rayonnement (1), et à modifier la direction de propagation du faisceau élémentaire (3) par rapport à l'axe (1). Les surfaces réfléchissantes des éléments optiques (5) consistent en un moyen permettant de former dans chaque faisceau (3) un groupe de rayons obliques ayant une focale (F) située au-delà des limites de l'axe de symétrie (6), y compris à l'infini. Les surfaces réfléchissantes des éléments optiques (5) consistent en des surfaces à double courbure, s'étendent dans une direction radiale depuis l'axe (6) du flux de rayonnement (1) et sont délimitées par des courbes spatiales continues (8) passant à proximité dudit axe (6).
PCT/RU2010/000003 2009-12-29 2010-01-14 Procédé de focalisation d'un flux de rayonnement axisymétrique généré par une source de type ondes et système optique pour sa mise en œuvre WO2011081553A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU2009148858 2009-12-29
RU2009148858/28A RU2404444C1 (ru) 2009-12-29 2009-12-29 Способ фокусировки осесимметричного потока излучения, генерируемого источником волновой природы, и оптическая система для его осуществления

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WO2011081553A1 true WO2011081553A1 (fr) 2011-07-07

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1697041A1 (ru) * 1990-02-23 1991-12-07 Центральное Конструкторское Бюро Уникального Приборостроения Научно-Технического Объединения Ан Ссср Устройство дл фокусировки гауссова пучка в пр моугольник с равномерным распределением интенсивности
US5982562A (en) * 1994-05-31 1999-11-09 The Australian National University Of Acton Lenses formed by arrays of reflectors
RU2238576C1 (ru) * 2003-01-09 2004-10-20 Общество С Ограниченной Ответственностью "Инсмат Технология" Способ фокусировки волнового поля и устройство для его осуществления
WO2008031514A2 (fr) * 2006-09-15 2008-03-20 Media Lario S.R.L. Système optique collecteur
RU76430U1 (ru) * 2008-05-26 2008-09-20 Общество С Ограниченной Ответственностью "Инсмат Технология" Оптический модуль для преобразования волнового поля

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1697041A1 (ru) * 1990-02-23 1991-12-07 Центральное Конструкторское Бюро Уникального Приборостроения Научно-Технического Объединения Ан Ссср Устройство дл фокусировки гауссова пучка в пр моугольник с равномерным распределением интенсивности
US5982562A (en) * 1994-05-31 1999-11-09 The Australian National University Of Acton Lenses formed by arrays of reflectors
RU2238576C1 (ru) * 2003-01-09 2004-10-20 Общество С Ограниченной Ответственностью "Инсмат Технология" Способ фокусировки волнового поля и устройство для его осуществления
WO2008031514A2 (fr) * 2006-09-15 2008-03-20 Media Lario S.R.L. Système optique collecteur
RU76430U1 (ru) * 2008-05-26 2008-09-20 Общество С Ограниченной Ответственностью "Инсмат Технология" Оптический модуль для преобразования волнового поля

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Publication number Publication date
RU2404444C1 (ru) 2010-11-20
RU2009148858A (ru) 2010-08-20

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