DE2422435A1 - Optical system for centre-point modulation - has individual detector element and optical component for tracking systems - Google Patents

Optical system for centre-point modulation - has individual detector element and optical component for tracking systems

Info

Publication number
DE2422435A1
DE2422435A1 DE2422435A DE2422435A DE2422435A1 DE 2422435 A1 DE2422435 A1 DE 2422435A1 DE 2422435 A DE2422435 A DE 2422435A DE 2422435 A DE2422435 A DE 2422435A DE 2422435 A1 DE2422435 A1 DE 2422435A1
Authority
DE
Germany
Prior art keywords
optical
axis
point modulation
centre
component
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.)
Ceased
Application number
DE2422435A
Other languages
German (de)
Inventor
Josef Menke
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.)
Elektro Optik GmbH and Co KG
Original Assignee
Elektro Optik GmbH and Co KG
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
Priority claimed from DE19722226372 external-priority patent/DE2226372B2/en
Application filed by Elektro Optik GmbH and Co KG filed Critical Elektro Optik GmbH and Co KG
Priority to DE2422435A priority Critical patent/DE2422435A1/en
Publication of DE2422435A1 publication Critical patent/DE2422435A1/en
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/64—Imaging systems using optical elements for stabilisation of the lateral and angular position of the image
    • G02B27/642—Optical derotators, i.e. systems for compensating for image rotation, e.g. using rotating prisms, mirrors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/78—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using electromagnetic waves other than radio waves
    • G01S3/782—Systems for determining direction or deviation from predetermined direction
    • G01S3/785—Systems for determining direction or deviation from predetermined direction using adjustment of orientation of directivity characteristics of a detector or detector system to give a desired condition of signal derived from that detector or detector system
    • G01S3/786—Systems for determining direction or deviation from predetermined direction using adjustment of orientation of directivity characteristics of a detector or detector system to give a desired condition of signal derived from that detector or detector system the desired condition being maintained automatically
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • G02B26/10—Scanning systems
    • G02B26/108—Scanning systems having one or more prisms as scanning elements

Abstract

The optical system contains an optical component (2) which rotates about the optical axis itself (y-axis) and about an axis (x-axis) which moves in an axis-normal plane to the optical axis, thereby causing modulation in the central area of the image field. The optical component bringing about centre-point modulation can be designed as a reflecting element, e.g. a rocking or vibrating mirror. It can also be designed as a transparent element, e.g. a polygonal prism. This component can be mounted rotatably in a frame lying in an axis-normal plane to the optical axis and the frame can be mounted rotatably coaxially to the optical axis.

Description

Optische Anordnung für ein Verfahren zur Mittelpunkt-Modulation in optischen Trackern Zusatz zu Patent....(Anm. P 22 26 372.5) Die Erfindung betrifft eine weitere Verbesserung der optischen Anordnung nach Patent....(Anm. P 22 26 372.5) vom 15.April 1972, Ausführung mit gefaltetem Strahlen£rang'(Fig.1b) sowie der Zusatz-Anmeldung P 22 50 113.9 vom 20.Be-otember 1972. Die in den Beiden Anmeldungen beschriebenen Anordnungen arbeiten jeweils mit zwei getrennten,optischen Elementen,von denen das eine die Bilddrehung, das andere die zeilenmäßige Abtastung übernimmt. Optical arrangement for a method for midpoint modulation in optical trackers addendum to patent .... (Note P 22 26 372.5) The invention relates a further improvement of the optical arrangement according to patent ... (note P 22 26 372.5) dated April 15, 1972, version with folded beams (Fig.1b) and the additional registration P 22 50 113.9 of December 20, 1972. The two applications described Arrangements each work with two separate optical elements, of which the one the image rotation, the other takes over the line-by-line scanning.

Der Zusatz-Erfindung liegt die Aufgabe zu Grunde, die optischen Anordnungen in den genannten Patentanmeldungenfür den Sonderfall der Anwendung eines einzelnen Detektor-Elements zu vereinfachen.The additional invention is based on the object, the optical arrangements in the named patent applications for the special case of the application of an individual Simplify detector element.

Diese Angabe wird erfindungsgemäß gelöst durch die Verwendung eines optischen Bau-Elements,welches sich einerseits um die optische Achse selbst (Y-Achse),andererseits um eine in einer Achsnormalebene zur optischen Achse sich bewegende Achse (X-Achse) dreht und dadurch eine Modulation im Mittelfeld des Bildfeldes bewirkt.According to the invention, this specification is achieved by using a optical construction element, which is on the one hand around the optical axis itself (Y-axis), on the other hand about an axis moving in a normal plane to the optical axis (X-axis) rotates and thereby causes a modulation in the middle field of the image field.

Bei der Anwendung auf den genannten Sonderfall obliegt somit dem erwähnten optischen Bau-Element nicht nur die Rotation zu als scan-Bewegung in Richtung um die X-Achse,sondern auch die Rotation Sty in Richtung um die optische Achse Y als Bilddrehung. Die Bauteile der Reversions-Optik,die zum Erreichen der Bilddrehung dienen, können damit entfallen.When applied to the special case mentioned, it is therefore incumbent on the mentioned optical construction element not just rotation to as scan movement in the direction around the X-axis, but also the rotation Sty in the direction about the optical axis Y as Image rotation. The components of the reversion optics that are used to achieve the image rotation serve, can thus be omitted.

Der mit dieser Erfindung erzielte Vorteil besteht insbesondere darin, daß keine Abschattung der Apertur mehr auftreten kann, die Anwendung einer gesonderten Reversions-Optik entfällt und die Strahlungsverluste somit auf ein Minimum reduziert werden.The advantage achieved with this invention consists in particular in that no more shadowing of the aperture can occur, the use of a separate one Reversion optics are no longer necessary and radiation losses are thus reduced to a minimum will.

Zum anderen kann an die Stelle des Polygons ein Schvling- oder Kipp-Spiegel treten, der um die X-Achse kippt als Zeilen-Abtastung und um die Y-Achse dreht als Bilddrehung.On the other hand, a swing or tilt mirror can take the place of the polygon step that tilts around the X-axis as a line scan and rotates around the Y-axis as Image rotation.

Bei Verwendung eines Polygonal-Prismas als die Mittelpunkt-Modulation bewirkendes, optisches Bauelement gibt es verschiedene Einbau-Möglichkeiten. So könnte man beispielsweise das Polygonal-Prisma mit Antriebsmotor für die Drehbewegung um die X-Achse in einem Rahmen lagern, welcher seinerueits in einem feststehendeg, normal zur Y-Achse und konzentrisch zu dieser angeordneten, zweiten Rahmen drehbar gelagert ist.When using a polygonal prism as the center point modulation effecting, optical component there are various installation options. So For example, one could use the polygonal prism with a drive motor for the rotary movement store around the X-axis in a frame, which in turn is in a fixed, normal to the Y-axis and concentric to this arranged, rotatable second frame is stored.

Eine zweite Möglichkeit besteht darin, nur das Pol»-gonal-Prisma in dem drehbaren Rahmen zu lagern und ihm die Drehbewegung um die X-Achse durch Abrollen eines mit der Welle des Prismas fest verbundenen Kegelrädchens auf einem feststehenden Zahnkranz zuzuführen. In diesem Fall würde der nutierende Antriebsmotor entfallen und der fest eingebaute Antriebsmotor für die Nutations-Bewegung gleichzeitig den Antrieb für die Drehbewegung um die X-Achse liefern.A second possibility is to use only the pole -gonal prism in to store the rotatable frame and give it the rotary movement around the X-axis by rolling a bevel wheel firmly connected to the shaft of the prism on a stationary one To feed the ring gear. In this case, the nutating drive motor would be omitted and the built-in drive motor for the nutation movement at the same time Provide drive for the rotary movement around the X-axis.

Ein Ausführungsbeispiel der Zusatz-Erfindung ist in einer Zeichnung dargestellt und wird im folgenden näher beschrieben.(J?ig.1) Die durch ein Eingangs-Obäektiv 1 eintretende, parallele Strahlung gelangt als konvergentes Bündel auf ein solygonal-Prisma 2. Das von einem rotor 5 angetriebene Polygonal-Frisma tastet durch seine Drehung um die X-Achse (scan-Bewegung) die Zeile ab und bewirkt durch die Nutation des Bildes um die Achse die Bilddrehung.An embodiment of the additional invention is shown in a drawing and is described in more detail below. (J? ig.1) The through an input lens 1 entering, parallel radiation arrives as a convergent bundle on a solygonal prism 2. The polygonal frism driven by a rotor 5 scans through its rotation around the X-axis (scan movement) and causes the nutation of the image the rotation of the image around the axis.

diernach fällt die Strahlung über einen Transtormator 3 auf den Detektor 4.thereafter the radiation falls on the detector via a transformer 3 4th

Claims (4)

PatentansprücheClaims 1. Optische Anordnung für ein Verfahren zu lGittelpunkt-Lodulation in optischen Trackern, insbesondere nach Patent... (Anmeldung P 22 26 372.5) mit einem einzelnen Betektor-Element, Sekennzeichnet durch ein optisches Bau-Element (2), welches sich einerseits um die optische Achse selbst (Y-hchse) andererseits um eine,«in einer Achsnormalebene zut optischen Achse sich bewegende Achse (X-Achse) dreht und dadurch eine Modulation im Mittelfeld des Bildfeldes bewirkt.1. Optical arrangement for a method for central point lodulation in optical trackers, especially according to patent ... (application P 22 26 372.5) with a single actuator element, characterized by an optical construction element (2), which is on the one hand around the optical axis itself (Y-axis) on the other hand about an axis moving in a normal plane to the optical axis (X-axis) rotates and thereby causes a modulation in the middle field of the image field. 2, Optische Anordnung nach Anspruch 1, dadurch gekennzeichnet, daß das die Mittelpunkt-Modulation bewirkende, optische Bauelement (2) als reflektierendes element, z.B. als Kipp- oder Schwing-Spiegel ausgebildet ist. 2, optical arrangement according to claim 1, characterized in that the center point modulation causing the optical component (2) as a reflective one element, e.g. designed as a tilting or oscillating mirror. 3. Optische Anordnung nach Anspruch 1, dadurch gekennzeichnet, daß das die Mittelpunkt-Modulation bewirkende, optische Bauelement (2) als transpafentes Element, z.B. als Polygonal-Prisma ausgebildet ist. 3. Optical arrangement according to claim 1, characterized in that the mid-point modulation causing the optical component (2) as transparent Element, e.g. designed as a polygonal prism. 4. Optische Anordnung nach den Ansprüchen 1 bis 3, dadurch gekennzeichnet, daß das die Mittelpunkt-Modulation bewirkende,optische Element (2) in einem in einer Achsnormalebene zur optischen Achse liegenden Rahmen drehbar gelagert ist, und daß der Rahmen selbst koaxial zur optischen Achse (Y-Achse) drehbar gelagert ist.4. Optical arrangement according to claims 1 to 3, characterized in that that the mid-point modulation causing the optical element (2) in one in one Axis normal plane to the optical axis lying frame is rotatably mounted, and that the frame itself is rotatably mounted coaxially to the optical axis (Y-axis). L e e r s e i t eL e r s e i t e
DE2422435A 1972-04-15 1974-05-09 Optical system for centre-point modulation - has individual detector element and optical component for tracking systems Ceased DE2422435A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2422435A DE2422435A1 (en) 1972-04-15 1974-05-09 Optical system for centre-point modulation - has individual detector element and optical component for tracking systems

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19722226372 DE2226372B2 (en) 1972-04-15 1972-04-15 Optical target tracking system - combines polar and line scanning to give target beam modulation over whole image field
DE2422435A DE2422435A1 (en) 1972-04-15 1974-05-09 Optical system for centre-point modulation - has individual detector element and optical component for tracking systems

Publications (1)

Publication Number Publication Date
DE2422435A1 true DE2422435A1 (en) 1975-11-20

Family

ID=25763346

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2422435A Ceased DE2422435A1 (en) 1972-04-15 1974-05-09 Optical system for centre-point modulation - has individual detector element and optical component for tracking systems

Country Status (1)

Country Link
DE (1) DE2422435A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5189545A (en) * 1989-05-18 1993-02-23 Mitsubishi Denki Kabushiki Kaisha Optical deflector and display unit using the same
FR2709562A1 (en) * 1982-11-09 1995-03-10 Thomson Csf Device for forming images by field scanning and use in a homing head
CN106404794A (en) * 2016-10-17 2017-02-15 中国科学院上海光学精密机械研究所 High-speed measuring device and method for surface scattering of large-aperture material

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2709562A1 (en) * 1982-11-09 1995-03-10 Thomson Csf Device for forming images by field scanning and use in a homing head
US5189545A (en) * 1989-05-18 1993-02-23 Mitsubishi Denki Kabushiki Kaisha Optical deflector and display unit using the same
CN106404794A (en) * 2016-10-17 2017-02-15 中国科学院上海光学精密机械研究所 High-speed measuring device and method for surface scattering of large-aperture material
CN106404794B (en) * 2016-10-17 2019-10-18 中国科学院上海光学精密机械研究所 A kind of high-speed measuring device and method of the scattering of heavy caliber material surface

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