EP0228734B1 - Regelvorrichtung zur Harmonisierung der Achse eines Lenksystems mit verstellbarem Gesichtsfeld in bezug auf die Achse eines Visiers - Google Patents

Regelvorrichtung zur Harmonisierung der Achse eines Lenksystems mit verstellbarem Gesichtsfeld in bezug auf die Achse eines Visiers Download PDF

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Publication number
EP0228734B1
EP0228734B1 EP86202171A EP86202171A EP0228734B1 EP 0228734 B1 EP0228734 B1 EP 0228734B1 EP 86202171 A EP86202171 A EP 86202171A EP 86202171 A EP86202171 A EP 86202171A EP 0228734 B1 EP0228734 B1 EP 0228734B1
Authority
EP
European Patent Office
Prior art keywords
guidance
axis
optical
centre
field
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.)
Expired - Lifetime
Application number
EP86202171A
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English (en)
French (fr)
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EP0228734A1 (de
Inventor
Fernand Loy
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.)
Cessione thomson - Trt Defense
Original Assignee
Telecommunications Radioelectriques et Telephoniques SA TRT
Philips Gloeilampenfabrieken NV
Koninklijke Philips Electronics NV
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Publication date
Application filed by Telecommunications Radioelectriques et Telephoniques SA TRT, Philips Gloeilampenfabrieken NV, Koninklijke Philips Electronics NV filed Critical Telecommunications Radioelectriques et Telephoniques SA TRT
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Publication of EP0228734B1 publication Critical patent/EP0228734B1/de
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41G—WEAPON SIGHTS; AIMING
    • F41G7/00—Direction control systems for self-propelled missiles
    • F41G7/20—Direction control systems for self-propelled missiles based on continuous observation of target position
    • F41G7/24—Beam riding guidance systems
    • F41G7/26—Optical guidance systems
    • F41G7/263—Means for producing guidance beams
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41G—WEAPON SIGHTS; AIMING
    • F41G3/00—Aiming or laying means
    • F41G3/32—Devices for testing or checking
    • F41G3/326—Devices for testing or checking for checking the angle between the axis of the gun sighting device and an auxiliary measuring device

Definitions

  • the invention relates to a device for controlling the guide axis of a guidance system with a variable field to the line of sight of a telescopic sight, the latter comprising a lens, a reticle and an eyepiece, said guidance system comprising an optical beam guidance emitter, a guidance field scanning or coding system the center of which is projected to infinity by means of a variable focal length or zoom lens along the guidance axis connecting the optical axis of the zoom to said center of the guide field.
  • This device is particularly applicable to missile guidance systems on laser beam in which the angular guidance field is variable according to a predetermined law depending on the distance of the missile.
  • Such systems generally use objectives with variable focal length to project the guide beam on the axis of which the missile controls its trajectory.
  • the ratio of the focal lengths of these objectives between the instant of ignition and that of the end of the flight can be greater than 100.
  • These objectives are zoom lenses, the variation of the focal distance of which is obtained by the translation of several groups of lenses along the mechanical axis of the objective.
  • One of the main difficulties in producing these optics is to keep an optical axis whose direction is fixed at all focal distances, this axis having to be parallel to the line of sight under all environmental conditions.
  • the present invention provides a simple structure servo device which takes into account to a greater extent the displacement of the optical members.
  • such a device comprises a blade with parallel faces taken as an optical reference piece and rigidly fixed on the telescope to adjust the line of sight of said telescope, by translation of the reticle in its plane up to so that the reticle and its image obtained by self-animation on said slide and observed through the eyepiece are combined, a deviation meter to identify any transverse displacement of the optical center of the zoom which causes an angular deviation of said guide axis, a deviation gauge composed of a symmetrical hole in said center of the guide field with respect to another blade with semi-transparent parallel faces, and a detector arranged in front of said hole so as to receive flux from the guide emitter after successive reflections on said blades , detector connected to the input of a deviation meter to deliver an error signal at its output measuring the deviation of the op axis tick of the zoom relative to its nominal position parallel to the line of sight and directed towards a correction element on the path of the laser beam to deflect this beam and the position of the center of said guide field so as to cancel said deviation
  • the single figure shows the block diagram of a device according to the invention.
  • the telescopic sight 1 defines the sight axis 2, it is adjusted by construction perpendicular to the blade with parallel faces 3 rigidly fixed on the telescopic sight 1. This adjustment is obtained for example by translation in its plane of the reticle 4 until the reticle and its sticker image on slide 3 are confused. The image is observed by the observer 5 through the eyepiece 6. For this adjustment, the reticle must be luminous or illuminated by a source not shown.
  • the guide projector comprises the laser beam 7, a scanning or coding system 8 for the guide field, the center of which is point 9, a projection lens with variable focal length 10.
  • the guide axis is axis 11.
  • This guide axis 11 must be stable at all the focal distances of the zoom 10 and parallel to the axis 2 despite the mechanical imperfections of the zoom (clearances, dilations, etc.).
  • the axis 11 passes through the optical center 12 of the zoom (represented here as a simple lens) and the center 9 of the guide field. Any transverse movement of 12 causes an angular deviation of the axis 11. This movement is identified by means of a distance meter composed of a hole 13 placed in front of a detector 14 which receives the flux emitted by the guide emitter after reflection on the blade 3 and the semi-transparent blade 15. The hole 13 is symmetrical with 9 in the blade 15. This assembly is rigid and non-deformable.
  • the detector 14 is provided with a deviation receiver 16 similar to that of the missile. We can thus measure at any time the deviation of the axis 11 from its nominal position.
  • the error signal is directed to a correction element 17 which will deflect the laser beam 7 and the position of the center of the field 9 so as to cancel the deviation.
  • the correction element 17 can, in certain cases, be incorporated into the scanning system 8 by acting directly on the scans of the field without additional deflection element.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Telescopes (AREA)
  • Optical Radar Systems And Details Thereof (AREA)
  • Control Of Position Or Direction (AREA)

Claims (3)

  1. Vorrichtung zum Ausrichten der Achse (11) eines Fohrungssystems mit einstellbarem Feld auf die Visierachse (2) eines Zielfernrohrs (1), das ein Objektiv, ein Fadenkreuz (4) und ein Okular (6) enthält, wobei das Führungssystem einen Sender für ein optisches Bündel (7) und ein Abtast- oder Codiersystem (8) für das Führungsfeld enthält, wobei die Feldmitte (9) mit Hilfe einer Varioptik, oder eines Zoom-Objektivs, (10) entlang der Führungsachse auf unendlich projiziert wird, die die optische Achse (12) des Zoom-Objektivs und die Mitte (9) des Führungsfeldes miteinander verbinden, dadurch qekennzeichnet, daß die Vorrichtung eine Platte (3) mit parallelen Flächen, die fest auf dem Fernrohr befestigt ist, als optisches Bezugselement um die Zielachse (2) des Fernrohrs (1) durch Verschieben des Fadenkreuzes (4) in seiner Ebene derart zu regeln, das das Fadenkreuz und seine durch Autokollimation auf der Platte und durch das Okular wahrgenommene Abbildung zur Deckung kommen, ein Bahnmeßgerat (13, 14, 16) zum Detektieren jeder seitlichen Verschiebung der optischen Mitte des Zoom-Objektivs, die eine Winkeländerung der Fflhrungsachse herbeiführt, wobei dieses Bahnmeßgerät besteht aus einer Offnung (13) die, in bezug auf eine andere Platte (15) mit parallelen halbdurchlässigen Flächen symmetrisch zur Mitte (9) des Lenkfeldes ist, und einen vor der Offnung angeordneten Detektor (14) enthält, um die vom Fllhrungssender ausgehenden Strahlung nach aufeinanderfolgenden Reflexionen an den Platten zu empfangen, wobei der Detektor verbunden ist mit dem Eingang eines Bahnmessungsempfängers (16) zum Erzeugen eines Fehlersignals an seinen Ausgang, das die Abweichung von der optischen Achse des Zoom-Objektivs in bezug auf seine parallele Nennstellung auf der Zielachse darstellt und einem Korrekturelement (17) in dem Weg des Bundels zugeführt wird, um dieses Bündel und die Lage der Mitte des Führungsfeldes abzulenken zum Beseitigen dieser Abweichung.
  2. Vorrichtung nach Anspruch 1, dadurch qekennzeichnet, daß das Führungsbündel ein Laserbündel ist.
  3. Vorrichtung nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß das Korrekturelement in das Abtastsystem aufgenommen ist und dabei die Feldabtastungen beeinflußt.
EP86202171A 1985-12-13 1986-12-04 Regelvorrichtung zur Harmonisierung der Achse eines Lenksystems mit verstellbarem Gesichtsfeld in bezug auf die Achse eines Visiers Expired - Lifetime EP0228734B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8518467 1985-12-13
FR8518467A FR2591767B1 (fr) 1985-12-13 1985-12-13 Procede d'asservissement de l'axe d'un systeme de guidage a champ variable a l'axe d'une lunette de visee

Publications (2)

Publication Number Publication Date
EP0228734A1 EP0228734A1 (de) 1987-07-15
EP0228734B1 true EP0228734B1 (de) 1991-03-13

Family

ID=9325746

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86202171A Expired - Lifetime EP0228734B1 (de) 1985-12-13 1986-12-04 Regelvorrichtung zur Harmonisierung der Achse eines Lenksystems mit verstellbarem Gesichtsfeld in bezug auf die Achse eines Visiers

Country Status (5)

Country Link
US (1) US4741618A (de)
EP (1) EP0228734B1 (de)
JP (1) JPS62140118A (de)
DE (1) DE3678128D1 (de)
FR (1) FR2591767B1 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3624128A1 (de) * 1986-07-17 1988-02-04 Messerschmitt Boelkow Blohm Verfahren zur parallelausrichtung
DE3911307C2 (de) * 1989-04-07 1998-04-09 Busch Dieter & Co Prueftech Verfahren zum Feststellen, ob zwei hintereinander angeordnete Wellen hinsichtlich ihrer Mittelachse fluchten oder versetzt sind
FR2793559B1 (fr) * 1999-05-12 2001-07-27 Cit Alcatel Procede et dispositif pour detecter les erreurs d'harmonisation de l'axe d'un instrument optique
JP3395733B2 (ja) * 1999-10-05 2003-04-14 三菱電機株式会社 光波妨害装置
JP4446087B2 (ja) * 2004-03-01 2010-04-07 独立行政法人情報通信研究機構 光検出装置及びこれを用いた光検出システム
CN105091792B (zh) * 2015-05-12 2017-11-03 西安邮电大学 一种标定多光轴光学系统光轴平行度的装置及其标定方法

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2133176A5 (de) * 1971-04-09 1972-11-24 Comp Generale Electricite
DE2426785C3 (de) * 1974-06-01 1979-02-01 Messerschmitt-Boelkow-Blohm Gmbh, 8000 Muenchen Vorrichtung zum Ausrichten der zwei optischen Achsen einer kombinierten Zielfernrohr/IR-Goniometer-Anlage
US4326799A (en) * 1975-08-06 1982-04-27 Raytheon Company Active-passive scanning system
US4100404A (en) * 1976-07-13 1978-07-11 Sanders Associates, Inc. Beam projector
US4179085A (en) * 1978-01-03 1979-12-18 The United States Of America As Represented By The Secretary Of The Army Optical boresight method for nutating system
DE2941627B1 (de) * 1979-10-13 1981-04-23 Eltro GmbH, Gesellschaft für Strahlentechnik, 6900 Heidelberg Verfahren und Vorrichtung zur Harmonisierung optischer Achsen
US4326800A (en) * 1980-05-05 1982-04-27 Hughes Aircraft Company Laser beam wavefront and line-of-sight error correction system
US4385834A (en) * 1980-07-28 1983-05-31 Westinghouse Electric Corp. Laser beam boresight system
DE3034922C2 (de) * 1980-09-16 1982-11-25 Siemens AG, 1000 Berlin und 8000 München Justier- und Prüfeinrichtung für ein Laserentfernungsmeßsystem
JPS5834420A (ja) * 1981-08-26 1983-02-28 Tech Res & Dev Inst Of Japan Def Agency 光学装置
GB2125162B (en) * 1982-07-26 1985-09-18 Atomic Energy Authority Uk Optical alignment system
US4662727A (en) * 1983-08-01 1987-05-05 Hughes Aircraft Company Two-axis optical inertial system using a gyro rotor as a stable reference

Also Published As

Publication number Publication date
DE3678128D1 (de) 1991-04-18
FR2591767A1 (fr) 1987-06-19
JPS62140118A (ja) 1987-06-23
EP0228734A1 (de) 1987-07-15
FR2591767B1 (fr) 1988-02-19
US4741618A (en) 1988-05-03

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