FR2449380A1 - Vibrating mirror system for high resolution IR camera - comprises optical system controlled by piezoelectric columns in two axes and has secondary mirror moved by lever systems - Google Patents

Vibrating mirror system for high resolution IR camera - comprises optical system controlled by piezoelectric columns in two axes and has secondary mirror moved by lever systems

Info

Publication number
FR2449380A1
FR2449380A1 FR7903912A FR7903912A FR2449380A1 FR 2449380 A1 FR2449380 A1 FR 2449380A1 FR 7903912 A FR7903912 A FR 7903912A FR 7903912 A FR7903912 A FR 7903912A FR 2449380 A1 FR2449380 A1 FR 2449380A1
Authority
FR
France
Prior art keywords
mirror
high resolution
camera
axes
secondary mirror
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.)
Granted
Application number
FR7903912A
Other languages
French (fr)
Other versions
FR2449380B1 (en
Inventor
Rene Jalin
Bernard Moreau
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.)
Office National dEtudes et de Recherches Aerospatiales ONERA
Original Assignee
Office National dEtudes et de Recherches Aerospatiales ONERA
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 Office National dEtudes et de Recherches Aerospatiales ONERA filed Critical Office National dEtudes et de Recherches Aerospatiales ONERA
Priority to FR7903912A priority Critical patent/FR2449380A1/en
Publication of FR2449380A1 publication Critical patent/FR2449380A1/en
Application granted granted Critical
Publication of FR2449380B1 publication Critical patent/FR2449380B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
    • H04N3/02—Scanning details of television systems; Combination thereof with generation of supply voltages by optical-mechanical means only
    • H04N3/08—Scanning details of television systems; Combination thereof with generation of supply voltages by optical-mechanical means only having a moving reflector
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/0005—Optical objectives specially designed for the purposes specified below having F-Theta characteristic
    • 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
    • G02B26/06—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the phase of light
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/18—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors
    • G02B7/182—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for mirrors
    • G02B7/1821—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for mirrors for rotating or oscillating mirrors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Telescopes (AREA)

Abstract

The infra-red camera has high resolution and has a piezoelectric sweep system which controls a vibrating mirror. A single photodetector sweeps several lines of the object and the resolution of this system is limited only by the diffraction. An infra-red camera consists of a Cassegrain telescope (10) with a mounting tube (11) in which a primary mirror (12) is fixed. A secondary mirror (13) is mounted on a spider web mounting (16) in the centre (15). A photocell (17) sensitive to infra-red is mounted at the focal point. The secondary mirror is moved in perpendicular axes by two lever systems each comprising a piezoelectric column (18) and articulating lever (20). These columns are excited by amplifiers (27, 37) from LF generators (26, 36) whose outputs are applied to a screen (31) with the amplified (29) signal from the photocell.
FR7903912A 1979-02-15 1979-02-15 Vibrating mirror system for high resolution IR camera - comprises optical system controlled by piezoelectric columns in two axes and has secondary mirror moved by lever systems Granted FR2449380A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7903912A FR2449380A1 (en) 1979-02-15 1979-02-15 Vibrating mirror system for high resolution IR camera - comprises optical system controlled by piezoelectric columns in two axes and has secondary mirror moved by lever systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7903912A FR2449380A1 (en) 1979-02-15 1979-02-15 Vibrating mirror system for high resolution IR camera - comprises optical system controlled by piezoelectric columns in two axes and has secondary mirror moved by lever systems

Publications (2)

Publication Number Publication Date
FR2449380A1 true FR2449380A1 (en) 1980-09-12
FR2449380B1 FR2449380B1 (en) 1983-06-17

Family

ID=9222030

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7903912A Granted FR2449380A1 (en) 1979-02-15 1979-02-15 Vibrating mirror system for high resolution IR camera - comprises optical system controlled by piezoelectric columns in two axes and has secondary mirror moved by lever systems

Country Status (1)

Country Link
FR (1) FR2449380A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0432618A2 (en) * 1989-12-12 1991-06-19 Carl Zeiss Mirror telescope

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1213141B (en) * 1965-09-24 1966-03-24 Leitz Ernst Gmbh Wobble mirror
US3825747A (en) * 1973-05-21 1974-07-23 E Thomson Scanner
DE2312711A1 (en) * 1973-03-14 1974-09-26 Vianova Kunstharz Ag INDEPENDENTLY SWIVELING DEFLECTIVE MIRROR AROUND TWO AXES
US4073567A (en) * 1975-09-29 1978-02-14 U.S. Philips Corporation Pivoting mirror device
DE2757585A1 (en) * 1976-12-24 1978-07-06 Onera (Off Nat Aerospatiale) DEVICE FOR SELF-ALIGNING A LASER BEAM AT A TARGET
FR2392441A1 (en) * 1976-12-24 1978-12-22 Onera (Off Nat Aerospatiale) Automatic aligning of laser beam on target - using mirror supported by hinge and two piezoelectric components to which guiding signals, derived from received signal, are applied
FR2412108A2 (en) * 1977-12-15 1979-07-13 Onera (Off Nat Aerospatiale) Automatic aligning of laser beam on target - using mirror supported by hinge and two piezoelectric components to which guiding signals, derived from received signal, are applied

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1213141B (en) * 1965-09-24 1966-03-24 Leitz Ernst Gmbh Wobble mirror
DE2312711A1 (en) * 1973-03-14 1974-09-26 Vianova Kunstharz Ag INDEPENDENTLY SWIVELING DEFLECTIVE MIRROR AROUND TWO AXES
US3825747A (en) * 1973-05-21 1974-07-23 E Thomson Scanner
US4073567A (en) * 1975-09-29 1978-02-14 U.S. Philips Corporation Pivoting mirror device
DE2757585A1 (en) * 1976-12-24 1978-07-06 Onera (Off Nat Aerospatiale) DEVICE FOR SELF-ALIGNING A LASER BEAM AT A TARGET
FR2392441A1 (en) * 1976-12-24 1978-12-22 Onera (Off Nat Aerospatiale) Automatic aligning of laser beam on target - using mirror supported by hinge and two piezoelectric components to which guiding signals, derived from received signal, are applied
FR2412108A2 (en) * 1977-12-15 1979-07-13 Onera (Off Nat Aerospatiale) Automatic aligning of laser beam on target - using mirror supported by hinge and two piezoelectric components to which guiding signals, derived from received signal, are applied

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EXBK/75 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0432618A2 (en) * 1989-12-12 1991-06-19 Carl Zeiss Mirror telescope
EP0432618A3 (en) * 1989-12-12 1991-09-18 Firma Carl Zeiss Mirror telescope
US5138484A (en) * 1989-12-12 1992-08-11 Carl-Zeiss-Stiftung Mirror telescope

Also Published As

Publication number Publication date
FR2449380B1 (en) 1983-06-17

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Legal Events

Date Code Title Description
ST Notification of lapse