JPS54143128A - Device for focusing projected image onto image plane - Google Patents

Device for focusing projected image onto image plane

Info

Publication number
JPS54143128A
JPS54143128A JP3680179A JP3680179A JPS54143128A JP S54143128 A JPS54143128 A JP S54143128A JP 3680179 A JP3680179 A JP 3680179A JP 3680179 A JP3680179 A JP 3680179A JP S54143128 A JPS54143128 A JP S54143128A
Authority
JP
Japan
Prior art keywords
image plane
focusing
projected image
image onto
focusing projected
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
JP3680179A
Other languages
English (en)
Inventor
Shiyutain Kaaruururitsuhi
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 JPS54143128A publication Critical patent/JPS54143128A/ja
Pending 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)
JP3680179A 1978-03-31 1979-03-28 Device for focusing projected image onto image plane Pending JPS54143128A (en)

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 (1)

Publication Number Publication Date
JPS54143128A true JPS54143128A (en) 1979-11-08

Family

ID=6035845

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3680179A Pending JPS54143128A (en) 1978-03-31 1979-03-28 Device for focusing projected image onto image plane

Country Status (5)

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

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

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4958826A (ja) * 1972-10-04 1974-06-07

Family Cites Families (1)

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

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4958826A (ja) * 1972-10-04 1974-06-07

Also Published As

Publication number Publication date
DE2813915C2 (ja) 1988-06-09
FR2421399B1 (ja) 1983-10-07
GB2018084A (en) 1979-10-10
US4247761A (en) 1981-01-27
FR2421399A1 (fr) 1979-10-26
DE2813915A1 (de) 1979-10-11
GB2018084B (en) 1982-09-29

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