FR2363089A1 - Dispositif et procede pour interrompre un faisceau optique - Google Patents

Dispositif et procede pour interrompre un faisceau optique

Info

Publication number
FR2363089A1
FR2363089A1 FR7726194A FR7726194A FR2363089A1 FR 2363089 A1 FR2363089 A1 FR 2363089A1 FR 7726194 A FR7726194 A FR 7726194A FR 7726194 A FR7726194 A FR 7726194A FR 2363089 A1 FR2363089 A1 FR 2363089A1
Authority
FR
France
Prior art keywords
plates
blade
optical beam
interrupting
radiation
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.)
Pending
Application number
FR7726194A
Other languages
English (en)
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.)
Philips North America LLC
US Philips Corp
Original Assignee
US Philips Corp
North American Philips Corp
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 US Philips Corp, North American Philips Corp filed Critical US Philips Corp
Publication of FR2363089A1 publication Critical patent/FR2363089A1/fr
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/02—Constructional details
    • G01J5/08—Optical arrangements
    • G01J5/0803—Arrangements for time-dependent attenuation of radiation signals
    • G01J5/0805—Means for chopping radiation
    • 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
    • G02B26/02—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the intensity of light
    • G02B26/04—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the intensity of light by periodically varying the intensity of light, e.g. using choppers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/30—Transforming light or analogous information into electric information
    • H04N5/33—Transforming infrared radiation

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Optics & Photonics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Electronic Switches (AREA)
  • Mechanical Light Control Or Optical Switches (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
  • Transmission Devices (AREA)

Abstract

Une lame interruptrice appartenant à un dispositif d'interruption de faisceau optique comporte des bords parallèles et peut tourner sur deux plaques excentriques. Lors de l'entraînement d'une seule de ces plaques, la lame se déplace parallèlement à elle-même à travers un faisceau de rayonnement. La lame peut acquérir une vitesse linéaire grâce à l'emploi de plaques d'entraînement elliptiques. Application aux tubes d'enregistrement d'images de télévision.
FR7726194A 1976-08-30 1977-08-29 Dispositif et procede pour interrompre un faisceau optique Pending FR2363089A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/718,869 US4073576A (en) 1976-08-30 1976-08-30 Device for chopping an optical beam

Publications (1)

Publication Number Publication Date
FR2363089A1 true FR2363089A1 (fr) 1978-03-24

Family

ID=24887882

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7726194A Pending FR2363089A1 (fr) 1976-08-30 1977-08-29 Dispositif et procede pour interrompre un faisceau optique

Country Status (6)

Country Link
US (1) US4073576A (fr)
JP (1) JPS5348410A (fr)
AU (1) AU2831877A (fr)
CA (1) CA1084746A (fr)
DE (1) DE2738780A1 (fr)
FR (1) FR2363089A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2386107A1 (fr) * 1977-03-31 1978-10-27 English Electric Valve Co Ltd Obturateur rotatif pour interrompre periodiquement un rayonnement thermique
FR2386108A1 (fr) * 1977-03-31 1978-10-27 English Electric Valve Co Ltd Obturateur rotatif pour interrompre periodiquement un rayonnement thermique

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2588684B1 (fr) * 1985-10-10 1988-01-08 Nicolas Pierre Appareil de projection a ecran spherique plus specialement pour usages publicitaires
EP0462748A3 (en) * 1990-06-20 1992-04-22 Thorn Emi Plc Imaging arrangement
US5299053A (en) * 1990-10-26 1994-03-29 American Cyanamid Company Variable shutter illumination system for microscope
GB2308935B (en) * 1996-01-06 2000-01-12 Marconi Gec Ltd A thermal imager referencing system
US11368637B1 (en) * 2021-02-17 2022-06-21 Institut National D'optique Image acquisition method for microbolometer thermal imaging systems

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB676907A (en) * 1950-02-27 1952-08-06 Cinema Television Ltd Improvements in or relating to shutters particularly for use in television systems
FR1081216A (fr) * 1953-04-27 1954-12-16 Nouveau dispositif d'arrêt sur image dans les appareils de projection cinématographique
US3121798A (en) * 1960-01-23 1964-02-18 Zeiss Ikon Ag Variable diaphragm structure for photoelectric exposure meters

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1441443A (fr) * 1964-11-20 1966-06-10 Aquitaine Petrole Commutateur de faisceaux pour un dispositif de spectrophotométrie à double faisceau

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB676907A (en) * 1950-02-27 1952-08-06 Cinema Television Ltd Improvements in or relating to shutters particularly for use in television systems
FR1081216A (fr) * 1953-04-27 1954-12-16 Nouveau dispositif d'arrêt sur image dans les appareils de projection cinématographique
US3121798A (en) * 1960-01-23 1964-02-18 Zeiss Ikon Ag Variable diaphragm structure for photoelectric exposure meters

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2386107A1 (fr) * 1977-03-31 1978-10-27 English Electric Valve Co Ltd Obturateur rotatif pour interrompre periodiquement un rayonnement thermique
FR2386108A1 (fr) * 1977-03-31 1978-10-27 English Electric Valve Co Ltd Obturateur rotatif pour interrompre periodiquement un rayonnement thermique

Also Published As

Publication number Publication date
AU2831877A (en) 1979-03-08
US4073576A (en) 1978-02-14
JPS5348410A (en) 1978-05-01
CA1084746A (fr) 1980-09-02
DE2738780A1 (de) 1978-03-02

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