FR2421399B1 - - Google Patents

Info

Publication number
FR2421399B1
FR2421399B1 FR7908053A FR7908053A FR2421399B1 FR 2421399 B1 FR2421399 B1 FR 2421399B1 FR 7908053 A FR7908053 A FR 7908053A FR 7908053 A FR7908053 A FR 7908053A FR 2421399 B1 FR2421399 B1 FR 2421399B1
Authority
FR
France
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
Application number
FR7908053A
Other versions
FR2421399A1 (fr
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of FR2421399A1 publication Critical patent/FR2421399A1/fr
Application granted granted Critical
Publication of FR2421399B1 publication Critical patent/FR2421399B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • G01C3/32—Measuring distances in line of sight; Optical rangefinders by focusing the object, e.g. on a ground glass screen
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/28—Systems for automatic generation of focusing signals
    • G02B7/36—Systems for automatic generation of focusing signals using image sharpness techniques, e.g. image processing techniques for generating autofocus signals

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Optics & Photonics (AREA)
  • Focusing (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Automatic Focus Adjustment (AREA)
FR7908053A 1978-03-31 1979-03-30 Dispositif pour regler de facon precise l'image d'un objet dans un plan image Granted FR2421399A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782813915 DE2813915A1 (de) 1978-03-31 1978-03-31 Anordnung zur scharfeinstellung der abbildung eines gegenstandes auf eine bildebene

Publications (2)

Publication Number Publication Date
FR2421399A1 FR2421399A1 (fr) 1979-10-26
FR2421399B1 true FR2421399B1 (fr) 1983-10-07

Family

ID=6035845

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7908053A Granted FR2421399A1 (fr) 1978-03-31 1979-03-30 Dispositif pour regler de facon precise l'image d'un objet dans un plan image

Country Status (5)

Country Link
US (1) US4247761A (fr)
JP (1) JPS54143128A (fr)
DE (1) DE2813915A1 (fr)
FR (1) FR2421399A1 (fr)
GB (1) GB2018084B (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2936520A1 (de) * 1979-09-10 1981-03-26 Siemens AG, 1000 Berlin und 8000 München Schaltung zur sensorgesteuerten entfernungsmessung
US4550993A (en) * 1983-02-01 1985-11-05 Minolta Camera Kabushiki Kaisha Device for providing a camera system with an information for a focus adjustment
US5195144A (en) * 1988-11-15 1993-03-16 Thomson-Csf Process for estimating the distance between a stationary object and a moving vehicle and device for using this process
FR2639108B1 (fr) * 1988-11-15 1990-12-21 Thomson Csf Procede pour estimer la distance entre un objet fixe et un vehicule en deplacement et dispositif pour la mise en oeuvre de ce procede
US5136148A (en) * 1990-07-04 1992-08-04 Olympus Optical Co., Ltd. Speed detection apparatus for camera

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4958826A (fr) * 1972-10-04 1974-06-07
US4005443A (en) * 1975-09-11 1977-01-25 Fritz Albrecht Scanning device and method for automatic focusing

Also Published As

Publication number Publication date
DE2813915C2 (fr) 1988-06-09
GB2018084A (en) 1979-10-10
US4247761A (en) 1981-01-27
FR2421399A1 (fr) 1979-10-26
DE2813915A1 (de) 1979-10-11
JPS54143128A (en) 1979-11-08
GB2018084B (en) 1982-09-29

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Legal Events

Date Code Title Description
ST Notification of lapse