EP1266260A1 - Sighting device with four fixed reflecting surfaces - Google Patents

Sighting device with four fixed reflecting surfaces

Info

Publication number
EP1266260A1
EP1266260A1 EP01919549A EP01919549A EP1266260A1 EP 1266260 A1 EP1266260 A1 EP 1266260A1 EP 01919549 A EP01919549 A EP 01919549A EP 01919549 A EP01919549 A EP 01919549A EP 1266260 A1 EP1266260 A1 EP 1266260A1
Authority
EP
European Patent Office
Prior art keywords
conical
electromagnetic wave
conical surfaces
reflecting means
reflecting
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Withdrawn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
EP01919549A
Other languages
German (de)
French (fr)
Inventor
Sajan Gianchandani
Alexandre Leroy
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.)
Egg Solution Optronics SA
Original Assignee
Egg Solution Optronics SA
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 Egg Solution Optronics SA filed Critical Egg Solution Optronics SA
Publication of EP1266260A1 publication Critical patent/EP1266260A1/en
Withdrawn legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
    • G03B13/32—Means for focusing
    • G03B13/34—Power focusing
    • G03B13/36—Autofocus systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C3/00—Measuring distances in line of sight; Optical rangefinders
    • G01C3/02—Details
    • G01C3/06—Use of electric means to obtain final indication
    • G01C3/08—Use of electric radiation detectors
    • G01C3/085—Use of electric radiation detectors with electronic parallax measurement
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B37/00—Panoramic or wide-screen photography; Photographing extended surfaces, e.g. for surveying; Photographing internal surfaces, e.g. of pipe
    • G03B37/06—Panoramic or wide-screen photography; Photographing extended surfaces, e.g. for surveying; Photographing internal surfaces, e.g. of pipe involving anamorphosis

Definitions

  • the present invention relates to the field of so-called “passive” sighting devices and detectors.
  • the present invention relates more particularly to an aiming device making it possible to determine the position of a target in space, of the type comprising at least one reflector provided with an external, at least partially reflecting surface, associated with a sensor electromagnetic waves.
  • the present invention intends to remedy the drawbacks of the prior art by proposing a fixed aiming device which does not require moving the objectives of the electromagnetic wave sensors to follow a target in space.
  • the present invention is of the type described above and it is remarkable, in its broadest sense, in that the device comprises four reflecting means each associated respectively with an electromagnetic wave sensor, said reflecting means being each provided respectively with a concave conical surface and being arranged so that the axes respectively of the four conical surfaces are parallel and vertical, three conical surfaces being arranged in the same horizontal mean plane so that their respective axes form in horizontal section a triangle and the fourth conical surface being arranged above the other three.
  • a cone is a regulated surface whose generator passes through a fixed point, the vertex.
  • a concave cone is a cone whose generator has a curvature in the direction of the axis of the cone.
  • said conical surfaces are generated by a substantially parabolic generator or by a generator substantially in an arc of a circle or even by a substantially elliptical generator.
  • the three conical surfaces are preferably arranged in the same horizontal mean plane so that their respective axes form in horizontal section an equilateral triangle.
  • Said reflecting means each preferably have a shape of a concave cone which has an apex, said apices being oriented towards said electromagnetic wave sensors.
  • Said reflecting means are preferably each arranged in a protective housing.
  • the protective boxes each have at least one window that is at least partially transparent over at least the entire height of at least part of said conical surfaces.
  • the present invention makes it possible to produce a compact, light and handy aiming device.
  • the aiming parameters of the aiming device according to the invention can be easily modified.
  • the present invention makes it possible to reduce the times for calculating the positions and to obtain sighting data extremely quickly.
  • FIG. 1 illustrates a perspective view of the device according to the invention
  • FIG. 2 illustrates a front view of the device according to the invention
  • Figure 3 illustrates a top view of the device according to the invention.
  • the aiming device (10) is a device making it possible to determine the position of a target in space, of the type comprising at least one reflector (20) provided with a surface (30), external, at least partially reflecting, associated with an electromagnetic wave sensor (40).
  • the sighting device (10) is characterized in that it comprises four means reflectors (20, 21, 22, 23) each associated respectively with an electromagnetic wave sensor (40, 41, 42, 43) said reflector means (20, 21, 22, 23) being each provided with a surface ( 30, 31, 32, 33) conical, concave and being arranged so that the axes (A0, Al, A2, A3) respectively of the four conical surfaces (30, 31, 32, 33) are parallel and vertical, three surfaces (31, 32, 33) conical being arranged in the same horizontal mean plane P so that their respective axes (A1, A2, A3) form a horizontal section in a triangle and the fourth conical surface (30) being disposed above the three others.
  • the three conical surfaces (31, 32, 33) are arranged in the same horizontal mean plane P preferably so that their respective axes (A1, A2, A3) form in horizontal section an equilateral triangle.
  • the location of the fourth conical surface (30) does not matter: it can be arranged so that its axis (A0) is inscribed in the triangle formed by the axes (Al, A2, A3) respectively of the three surfaces (31, 32, 33) conical, as illustrated in Figure 3.
  • the reflecting means (20, 21, 22, 23) are preferably identical and are positioned respectively in the optical axis of the electromagnetic wave sensors (40, 41, 42, 43).
  • the conical surfaces (30, 31, 32, 33) are generated by a substantially parabolic generator or by a generator substantially in an arc of a circle or by a substantially elliptical generator, according to the characteristics of determination of position sought.
  • each surface is therefore a circle or an ellipse. Thanks to the conical and concave surfaces (30, 31, 32, 33), the starting point of the angle of vision of the proximal end of each reflecting means is offset towards its distal end.
  • the conical surfaces (30, 31, 32, 33) reflect neither the observer nor an electromagnetic wave sensor (40, 41, 42, 43) positioned in place of the latter.
  • the electromagnetic wave sensors (40, 41, 42, 43) are then outside the fields of vision (50, 51, 52, 53), as illustrated in FIG. 2 and the surfaces (30,
  • Said reflector means (20, 21, 22, 23) preferably each have a cone shape which has an apex (60, 61, 62, 63), said apexes (60, 61, 62, 63) being oriented towards said sensors electromagnetic waves (40, 41, 42, 43), to minimize loss of light.
  • Said reflecting means (20, 21, 22, 23) are each arranged in a protective housing (70, 71, 72, 73) each having at least one window (80, 81, 82, 83) at least partially transparent on the at least the entire height of at least part of said surfaces (30, 31,
  • the induced fields of vision (50, 51, 52, 53) are 360 ° in the horizontal plane and approximately 90 ° in the vertical plane.
  • the values of the fields of vision are essentially defined by the curvature of the reflecting surfaces and the vertical position of the fourth reflecting surface with respect to the first three.
  • a common support is preferably also provided at the lower end of the device.
  • the device therefore makes it possible to calculate the position (three coordinates in space) of a target extremely quickly with adequate computer processing, even when the target is very far away (several tens of meters).
  • the coordinates of the target are determined by triangulation.
  • two reflecting means situated on the same plane P, each associated respectively with a sensor.
  • the vertical coordinates are then determined by the fourth reflecting surface located in another plane, but whose axis is parallel to the axis of the other three.
  • the data possibly provided by the third reflecting surface located in the plane P serve to compare those obtained by the first two.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Electromagnetism (AREA)
  • Remote Sensing (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Stereoscopic And Panoramic Photography (AREA)
  • Studio Devices (AREA)
  • Measurement Of Optical Distance (AREA)
  • Aerials With Secondary Devices (AREA)
  • Lenses (AREA)

Abstract

The invention concerns a sighting device (10) for determining the position of a target in space, comprising at least a reflector (20) provided with an outer surface (30), at least partly reflecting, associated with an electromagnetic wave sensor (4). The invention is characterised in that it comprises four reflecting means (20, 21, 22, 23) associated each with an electromagnetic wave sensor (40, 41, 42, 43) said reflecting means (20, 21, 22, 23) being each provided with a respective concave conical surface (30, 31, 32, 33) and being arranged such that the respective axes (A0, A1, A2, A3) of the four surfaces (30, 31, 32, 33) are parallel and vertical, three conical surfaces (31, 32, 33) being arranged in the same horizontal medium plane P so that their respective axes (A1, A2, A3) form in horizontal cross-section a triangle and the fourth conical surface (30) being arranged above the other three.

Description

DISPOSITIF DE VISÉE À QUATRE SURFACES RÉFLÉCHISSANTES FIXESSIGHTING DEVICE WITH FOUR FIXED REFLECTIVE SURFACES
La présente invention se rapporte au domaine des dispositifs de visée et détecteurs dits « passifs ». La présente invention se rapporte plus particulièrement à un dispositif de visée permettant de déterminer la position d'une cible dans l'espace, du type comportant au moins un réflecteur muni d'une surface, extérieure, au moins partiellement réfléchissante, associé à un capteur d'ondes électromagnétiques.The present invention relates to the field of so-called “passive” sighting devices and detectors. The present invention relates more particularly to an aiming device making it possible to determine the position of a target in space, of the type comprising at least one reflector provided with an external, at least partially reflecting surface, associated with a sensor electromagnetic waves.
L'art antérieur connaît déjà des dispositifs de visée et notamment le brevet américain US 3 961 851 qui porte sur un système de visée utilisant trois caméras mobiles pour déterminer la position d'une cible dans 1 ' espace.The prior art already knows sighting devices and in particular the American patent US 3 961 851 which relates to a sighting system using three mobile cameras to determine the position of a target in space.
L'inconvénient majeur de ce dispositif réside dans le fait qu'il est lourd, encombrant et inefficace dans le suivi rapide de cibles car dans ce cas les objectifs mobiles doivent être bougés très rapidement avec beaucoup de précision.The major drawback of this device lies in the fact that it is heavy, bulky and ineffective in the rapid tracking of targets because in this case the mobile objectives must be moved very quickly with great precision.
La présente invention entend remédier aux inconvénients de l'art antérieur en proposant un dispositif de visée fixe qui ne nécessite pas de bouger les objectifs des capteurs d'ondes électromagnétiques pour suivre une cible dans l'espace.The present invention intends to remedy the drawbacks of the prior art by proposing a fixed aiming device which does not require moving the objectives of the electromagnetic wave sensors to follow a target in space.
Pour ce faire, la présente invention est du type décrit ci-dessus et elle est remarquable, dans son acception la plus large, en ce que le dispositif comporte quatre moyens réflecteurs associés chacun respectivement à un capteur d'ondes électromagnétiques, lesdits moyens réflecteurs étant munis chacun respectivement d'une surface conique concave et étant disposés de telle sorte que les axes respectivement des quatre surfaces coniques soient parallèles et verticaux, trois surfaces coniques étant disposées dans le même plan moyen horizontal de manière que leurs axes respectifs forment en coupe horizontale un triangle et la quatrième surface conique étant disposée au- dessus des trois autres .To do this, the present invention is of the type described above and it is remarkable, in its broadest sense, in that the device comprises four reflecting means each associated respectively with an electromagnetic wave sensor, said reflecting means being each provided respectively with a concave conical surface and being arranged so that the axes respectively of the four conical surfaces are parallel and vertical, three conical surfaces being arranged in the same horizontal mean plane so that their respective axes form in horizontal section a triangle and the fourth conical surface being arranged above the other three.
Un cône est une surface réglée dont la génératrice passe par un point fixe, le sommet.A cone is a regulated surface whose generator passes through a fixed point, the vertex.
Un cône concave est un cône dont la génératrice présente une courbure en direction de l'axe du cône.A concave cone is a cone whose generator has a curvature in the direction of the axis of the cone.
Selon les variantes de l'invention, lesdites surfaces coniques sont engendrées par une génératrice sensiblement parabolique ou par une génératrice sensiblement en arc de cercle ou encore par une génératrice sensiblement elliptique.According to the variants of the invention, said conical surfaces are generated by a substantially parabolic generator or by a generator substantially in an arc of a circle or even by a substantially elliptical generator.
Les trois surfaces coniques sont disposées de préférence dans le même plan moyen horizontal de manière que leurs axes respectifs forment en coupe horizontale un triangle équilatéral. Lesdits moyens réflecteurs présentent de préférence chacun une forme de cône concave qui comporte un sommet, lesdits sommets étant orientés vers lesdits capteurs d'ondes électromagnétiques.The three conical surfaces are preferably arranged in the same horizontal mean plane so that their respective axes form in horizontal section an equilateral triangle. Said reflecting means each preferably have a shape of a concave cone which has an apex, said apices being oriented towards said electromagnetic wave sensors.
Lesdits moyens réflecteurs sont de préférence disposés chacun dans un boîtier de protection. Les boîtiers de protection présentent chacun au moins une fenêtre au moins partiellement transparente sur au moins toute la hauteur d'au moins une partie desdites surfaces coniques.Said reflecting means are preferably each arranged in a protective housing. The protective boxes each have at least one window that is at least partially transparent over at least the entire height of at least part of said conical surfaces.
Deux objectifs sur le même plan horizontal permettent la détermination de la position d'une cible sur ce plan. Le troisième n'est là que pour pallier à la présence d'angle mort pour les deux autres. Le quatrième objectif, disposé sur un plan horizontal différent des trois autres, permet une localisation en hauteur.Two objectives on the same horizontal plane allow the determination of the position of a target on this plane. The third is only there to compensate for the presence of a blind spot for the other two. The fourth objective, placed on a horizontal plane different from the other three, allows a location in height.
Avantageusement, la présente invention permet de réaliser un dispositif de visé compact, léger, maniable. Avantageusement également, les paramètres de visée du dispositif de visée selon l'invention peuvent être modifiés facilement. Avantageusement également, la présente invention permet de réduire les délais de calcul des positions et d'obtenir des données de visée extrêmement rapidement .Advantageously, the present invention makes it possible to produce a compact, light and handy aiming device. Advantageously also, the aiming parameters of the aiming device according to the invention can be easily modified. Advantageously also, the present invention makes it possible to reduce the times for calculating the positions and to obtain sighting data extremely quickly.
On comprendra mieux l'invention à l'aide de la description, faite ci-après à titre purement explicatif, d'un mode de réalisation de l'invention, en référence aux figures annexées : la figure 1 illustre une vue en perspective du dispositif selon l'invention ; la figure 2 illustre une vue de face du dispositif selon l'invention ; et la figure 3 illustre une vue de dessus du dispositif selon l'invention.The invention will be better understood with the aid of the description, given below for purely explanatory purposes, of an embodiment of the invention, with reference to the appended figures: FIG. 1 illustrates a perspective view of the device according to the invention; FIG. 2 illustrates a front view of the device according to the invention; and Figure 3 illustrates a top view of the device according to the invention.
Le dispositif de visée (10) selon l'invention, illustré figures 1 et 2, est un dispositif permettant de déterminer la position d'une cible dans l'espace, du type comportant au moins un réflecteur (20) muni d'une surface (30), extérieure, au moins partiellement réfléchissante, associé à un capteur d'ondes électromagnétiques (40) .The aiming device (10) according to the invention, illustrated in FIGS. 1 and 2, is a device making it possible to determine the position of a target in space, of the type comprising at least one reflector (20) provided with a surface (30), external, at least partially reflecting, associated with an electromagnetic wave sensor (40).
Le dispositif de visée (10) selon l'invention est caractérisé en ce qu'il comporte quatre moyens réflecteurs (20, 21, 22, 23) associés chacun respectivement à un capteur d'ondes électromagnétiques (40, 41, 42, 43) lesdits moyens réflecteurs (20, 21, 22, 23) étant munis chacun respectivement d'une surface (30, 31, 32, 33) conique, concave et étant disposés de telle sorte que les axes (A0 , Al, A2 , A3) respectivement des quatre surfaces (30, 31, 32, 33) coniques soient parallèles et verticaux, trois surfaces (31, 32, 33) coniques étant disposées dans le même plan moyen P horizontal de manière que leurs axes (Al, A2 , A3) respectifs forment en coupe horizontale un triangle et la quatrième surface (30) conique étant disposée au-dessus des trois autres.The sighting device (10) according to the invention is characterized in that it comprises four means reflectors (20, 21, 22, 23) each associated respectively with an electromagnetic wave sensor (40, 41, 42, 43) said reflector means (20, 21, 22, 23) being each provided with a surface ( 30, 31, 32, 33) conical, concave and being arranged so that the axes (A0, Al, A2, A3) respectively of the four conical surfaces (30, 31, 32, 33) are parallel and vertical, three surfaces (31, 32, 33) conical being arranged in the same horizontal mean plane P so that their respective axes (A1, A2, A3) form a horizontal section in a triangle and the fourth conical surface (30) being disposed above the three others.
Les trois surfaces (31, 32, 33) coniques sont disposées dans le même plan moyen P horizontal de préférence de manière que leurs axes (Al, A2 , A3) respectifs forment en coupe horizontale un triangle équilatéral .The three conical surfaces (31, 32, 33) are arranged in the same horizontal mean plane P preferably so that their respective axes (A1, A2, A3) form in horizontal section an equilateral triangle.
L'emplacement de la quatrième surface (30) conique importe peu : elle peut être disposée de telle sorte que son axe (A0) soit inscrit dans le triangle formé par les axes (Al, A2 , A3) respectivement des trois surfaces (31, 32, 33) coniques, comme illustré figure 3.The location of the fourth conical surface (30) does not matter: it can be arranged so that its axis (A0) is inscribed in the triangle formed by the axes (Al, A2, A3) respectively of the three surfaces (31, 32, 33) conical, as illustrated in Figure 3.
Les moyens réflecteurs (20, 21, 22, 23) sont de préférence identiques et sont positionnés respectivement dans l'axe optique des capteurs d'ondes électromagnétiques (40, 41, 42, 43).The reflecting means (20, 21, 22, 23) are preferably identical and are positioned respectively in the optical axis of the electromagnetic wave sensors (40, 41, 42, 43).
Selon les variantes de l'invention, les surfaces (30, 31, 32, 33) coniques sont engendrées par une génératrice sensiblement parabolique ou par une génératrice sensiblement en arc de cercle ou encore par une génératrice sensiblement elliptique, suivant les caractéristiques de détermination de position recherchées.According to the variants of the invention, the conical surfaces (30, 31, 32, 33) are generated by a substantially parabolic generator or by a generator substantially in an arc of a circle or by a substantially elliptical generator, according to the characteristics of determination of position sought.
La section vue du bas de chaque surface est donc un cercle ou une ellipse. Grâce aux surfaces (30, 31, 32, 33) coniques et concaves, le point de départ de l'angle de vision de l'extrémité proximale de chaque moyen réflecteur est déporté vers son extrémité distale.The section seen from the bottom of each surface is therefore a circle or an ellipse. Thanks to the conical and concave surfaces (30, 31, 32, 33), the starting point of the angle of vision of the proximal end of each reflecting means is offset towards its distal end.
Ainsi, les surfaces (30, 31, 32, 33) coniques ne reflètent ni l'observateur, ni un capteur d'ondes électromagnétiques (40, 41, 42, 43) positionné à la place de ce dernier. Les capteurs d'ondes électromagnétiques (40, 41, 42, 43) sont alors en dehors des champs de vision (50, 51, 52, 53), comme illustré figure 2 et les surfaces (30,Thus, the conical surfaces (30, 31, 32, 33) reflect neither the observer nor an electromagnetic wave sensor (40, 41, 42, 43) positioned in place of the latter. The electromagnetic wave sensors (40, 41, 42, 43) are then outside the fields of vision (50, 51, 52, 53), as illustrated in FIG. 2 and the surfaces (30,
31, 32, 33) coniques peuvent être placées dans un dispositif de protection situé également respectivement hors des champs de vision (50, 51, 52, 53).31, 32, 33) conical can be placed in a protective device also located respectively outside the field of vision (50, 51, 52, 53).
Lesdits moyens réflecteurs (20, 21, 22, 23) présentent de préférence chacun une forme de cône qui comporte un sommet (60, 61, 62, 63), lesdits sommets (60, 61, 62, 63) étant orientés vers lesdits capteurs d'ondes électromagnétiques (40, 41, 42, 43), afin de minimiser les pertes de luminosité.Said reflector means (20, 21, 22, 23) preferably each have a cone shape which has an apex (60, 61, 62, 63), said apexes (60, 61, 62, 63) being oriented towards said sensors electromagnetic waves (40, 41, 42, 43), to minimize loss of light.
Lesdits moyens réflecteurs (20, 21, 22, 23) sont disposés chacun dans un boîtier de protection (70, 71, 72, 73) présentant chacun au moins une fenêtre (80, 81, 82, 83) au moins partiellement transparente sur au moins toute la hauteur d'au moins une partie desdites surfaces (30, 31,Said reflecting means (20, 21, 22, 23) are each arranged in a protective housing (70, 71, 72, 73) each having at least one window (80, 81, 82, 83) at least partially transparent on the at least the entire height of at least part of said surfaces (30, 31,
32, 33) coniques.32, 33) conical.
Il est possible d'envisager qu'il n'y ait pas de surface réfléchissante ni de fenêtre dans les angles morts des moyens réflecteurs provoqués par la présence des autres moyens réflecteurs. Les champs de vision (50, 51, 52, 53) induits sont de 360° dans le plan horizontal et d'environ 90° dans le plan vertical .It is possible to envisage that there is no reflecting surface or window in the blind spots of the reflecting means caused by the presence of the other reflecting means. The induced fields of vision (50, 51, 52, 53) are 360 ° in the horizontal plane and approximately 90 ° in the vertical plane.
Les valeurs des champs de vision sont essentiellement définies par la courbure des surfaces réfléchissantes et la position verticale de la quatrième surface réfléchissante par rapport aux trois premières.The values of the fields of vision are essentially defined by the curvature of the reflecting surfaces and the vertical position of the fourth reflecting surface with respect to the first three.
Pour assurer que la position des surfaces les unes par rapport aux autres soient fixes, un support commun est de préférence en outre prévu à l'extrémité inférieure du dispositif.To ensure that the position of the surfaces relative to each other are fixed, a common support is preferably also provided at the lower end of the device.
Le dispositif permet donc de calculer extrêmement rapidement la position (trois coordonnées dans l'espace) d'une cible avec un traitement informatique adéquat, même lorsque la cible est très éloignée (plusieurs dizaines de mètres) .The device therefore makes it possible to calculate the position (three coordinates in space) of a target extremely quickly with adequate computer processing, even when the target is very far away (several tens of meters).
Les coordonnées de la cible sont déterminées par triangulation.The coordinates of the target are determined by triangulation.
Pour déterminer les coordonnées selon l'horizontale, deux moyens réflecteurs situés sur le même plan P associés respectivement chacun à un capteur suffisent. Les coordonnées verticales sont alors déterminées par la quatrième surface réfléchissante située dans un autre plan, mais dont l'axe est parallèle à l'axe des trois autres. Les données éventuellement fournies par la troisième surface réfléchissante située dans le plan P servent à confronter celles obtenues par les deux premières.To determine the coordinates according to the horizontal, two reflecting means situated on the same plane P, each associated respectively with a sensor. The vertical coordinates are then determined by the fourth reflecting surface located in another plane, but whose axis is parallel to the axis of the other three. The data possibly provided by the third reflecting surface located in the plane P serve to compare those obtained by the first two.
L'invention est décrite dans ce qui précède à titre d'exemple. Il est entendu que l'homme du métier est à même de réaliser différentes variantes de l'invention sans pour autant sortir du cadre du brevet. The invention is described in the foregoing by way of example. It is understood that the skilled person is at even realize different variants of the invention without departing from the scope of the patent.

Claims

REVENDICATIONS
1. Dispositif de visée (10) permettant de déterminer la position d'une cible dans l'espace, du type comportant au moins un réflecteur (20) muni d'une surface (30), extérieure, au moins partiellement réfléchissante, associé à un capteur d'ondes électromagnétiques (4), caractérisé en ce qu'il comporte quatre moyens réflecteurs (20, 21, 22, 23) associés chacun respectivement à un capteur d'ondes électromagnétiques (40, 41, 42, 43) lesdits moyens réflecteurs (20, 21, 22, 23) étant munis chacun respectivement d'une surface (30, 31, 32, 33) conique, concave et étant disposés de telle sorte que les axes (AO, Al, A2 , A3) respectivement des quatre surfaces (30, 31, 32, 33) soient parallèles et verticaux, trois surfaces (31, 32, 33) étant disposées dans le même plan moyen P horizontal de manière que leurs axes (Al, A2 , A3) respectifs forment en coupe horizontale un triangle et la quatrième surface (30) étant disposée au-dessus des trois autres.1. Aiming device (10) for determining the position of a target in space, of the type comprising at least one reflector (20) provided with an outer surface (30), at least partially reflecting, associated with an electromagnetic wave sensor (4), characterized in that it comprises four reflecting means (20, 21, 22, 23) each associated respectively with an electromagnetic wave sensor (40, 41, 42, 43) said means reflectors (20, 21, 22, 23) being each provided respectively with a conical, concave surface (30, 31, 32, 33) and being arranged so that the axes (AO, Al, A2, A3) respectively four surfaces (30, 31, 32, 33) are parallel and vertical, three surfaces (31, 32, 33) being arranged in the same horizontal mean plane P so that their respective axes (A1, A2, A3) form in section horizontal a triangle and the fourth surface (30) being arranged above the other three.
2. Dispositif (1) selon la revendication 1, caractérisé en ce que les trois surfaces (31, 32, 33) coniques sont disposées dans le même plan moyen P horizontal de manière que leurs axes (Al, A2 , A3) respectifs forment en coupe horizontale un triangle équilatéral .2. Device (1) according to claim 1, characterized in that the three conical surfaces (31, 32, 33) are arranged in the same horizontal mean plane P so that their respective axes (A1, A2, A3) form in horizontal section of an equilateral triangle.
3. Dispositif (1) selon la revendication 1 ou la revendication 2, caractérisé en ce que lesdites surfaces (30, 31, 32, 33) coniques sont engendrées chacune par une génératrice sensiblement parabolique.3. Device (1) according to claim 1 or claim 2, characterized in that said conical surfaces (30, 31, 32, 33) are each generated by a substantially parabolic generator.
4. Dispositif (1) selon l'une quelconque des revendications 1 à 2, caractérisé en ce que lesdites surfaces (30, 31, 32, 33) coniques sont engendrées chacune par une génératrice sensiblement en arc de cercle. 4. Device (1) according to any one of claims 1 to 2, characterized in that said conical surfaces (30, 31, 32, 33) are each generated by a generator substantially in an arc.
5. Dispositif (1) selon la revendication 1 ou la revendication 2, caractérisé en ce que lesdites surfaces (30, 31, 32, 33) coniques sont engendrées chacune par une génératrice sensiblement elliptique. 5. Device (1) according to claim 1 or claim 2, characterized in that said conical surfaces (30, 31, 32, 33) are each generated by a substantially elliptical generator.
6. Dispositif (1) selon l'une quelconque des revendications 1 à 5, caractérisé en ce que lesdits moyens réflecteurs (20, 21, 22, 23) présentent chacun une forme de cône qui comporte un sommet ( 60 , 61, 62, 63 ) , lesdits sommets (60, 61, 62, 63) étant orientés vers lesdits capteurs d'ondes électromagnétiques (40, 41, 42, 43).6. Device (1) according to any one of claims 1 to 5, characterized in that said reflecting means (20, 21, 22, 23) each have a cone shape which has a top (60, 61, 62, 63), said vertices (60, 61, 62, 63) being oriented towards said electromagnetic wave sensors (40, 41, 42, 43).
7. Dispositif (1) selon l'une quelconque des revendications 1 à 6, caractérisé en ce que lesdits moyens réflecteurs (20, 21, 22, 23) sont disposés chacun dans un boîtier de protection (70, 71, 72, 73) présentant chacun au moins une fenêtre (80, 81, 82, 83) au moins partiellement transparente sur au moins toute la hauteur d'au moins une partie desdites surfaces (30, 31, 32, 33) coniques. 7. Device (1) according to any one of claims 1 to 6, characterized in that said reflecting means (20, 21, 22, 23) are each arranged in a protective housing (70, 71, 72, 73) each having at least one window (80, 81, 82, 83) at least partially transparent over at least the entire height of at least a portion of said conical surfaces (30, 31, 32, 33).
EP01919549A 2000-03-22 2001-03-22 Sighting device with four fixed reflecting surfaces Withdrawn EP1266260A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0003672A FR2806809B1 (en) 2000-03-22 2000-03-22 PANORAMIC IMAGE AQUISITION DEVICE
FR0003672 2000-03-22
PCT/FR2001/000878 WO2001071420A1 (en) 2000-03-22 2001-03-22 Sighting device with four fixed reflecting surfaces

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EP00964329A Withdrawn EP1266263A1 (en) 2000-03-22 2000-09-20 Panoramic image acquisition device
EP01919549A Withdrawn EP1266260A1 (en) 2000-03-22 2001-03-22 Sighting device with four fixed reflecting surfaces

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EP (2) EP1266263A1 (en)
JP (1) JP2003528351A (en)
KR (1) KR20030005235A (en)
CN (1) CN1452730A (en)
AU (3) AU7528900A (en)
BR (1) BR0017169A (en)
CA (1) CA2402618A1 (en)
EA (1) EA200200984A1 (en)
FR (1) FR2806809B1 (en)
IL (3) IL151844A0 (en)
MX (1) MXPA02009246A (en)
TW (1) TW528924B (en)
WO (2) WO2001071423A1 (en)
ZA (1) ZA200208455B (en)

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AU7528900A (en) 2001-10-03
FR2806809B1 (en) 2002-11-22
WO2001071423A1 (en) 2001-09-27
IL151845A0 (en) 2003-04-10
US20030043261A1 (en) 2003-03-06
CN1452730A (en) 2003-10-29
FR2806809A1 (en) 2001-09-28
TW528924B (en) 2003-04-21
US20030053080A1 (en) 2003-03-20
ZA200208455B (en) 2003-10-20
BR0017169A (en) 2003-01-14
CA2402618A1 (en) 2001-09-27
IL151842A0 (en) 2003-04-10
IL151844A0 (en) 2003-04-10
US20020126395A1 (en) 2002-09-12
EP1266263A1 (en) 2002-12-18
AU4662901A (en) 2001-10-03
WO2001071420A1 (en) 2001-09-27
EA200200984A1 (en) 2003-02-27
JP2003528351A (en) 2003-09-24
AU4662801A (en) 2001-10-03
MXPA02009246A (en) 2004-08-12
KR20030005235A (en) 2003-01-17

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