SG45482G - Camera focussing system - Google Patents

Camera focussing system

Info

Publication number
SG45482G
SG45482G SG45482A SG45482A SG45482G SG 45482 G SG45482 G SG 45482G SG 45482 A SG45482 A SG 45482A SG 45482 A SG45482 A SG 45482A SG 45482 G SG45482 G SG 45482G
Authority
SG
Singapore
Prior art keywords
focussing system
camera focussing
camera
focussing
Prior art date
Application number
SG45482A
Other languages
English (en)
Original Assignee
Agfa Gevaert 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 Agfa Gevaert Ag filed Critical Agfa Gevaert Ag
Publication of SG45482G publication Critical patent/SG45482G/en

Links

Classifications

    • 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
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
    • G01S7/497—Means for monitoring or calibrating
    • 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
    • G02B7/30—Systems for automatic generation of focusing signals using parallactic triangle with a base line
    • G02B7/32—Systems for automatic generation of focusing signals using parallactic triangle with a base line using active means, e.g. light emitter

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Optics & Photonics (AREA)
  • Automatic Focus Adjustment (AREA)
  • Focusing (AREA)
SG45482A 1978-04-07 1982-09-16 Camera focussing system SG45482G (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782815151 DE2815151A1 (de) 1978-04-07 1978-04-07 Fokussiervorrichtung

Publications (1)

Publication Number Publication Date
SG45482G true SG45482G (en) 1983-02-25

Family

ID=6036432

Family Applications (1)

Application Number Title Priority Date Filing Date
SG45482A SG45482G (en) 1978-04-07 1982-09-16 Camera focussing system

Country Status (6)

Country Link
US (1) US4313655A (de)
JP (1) JPS54139728A (de)
DE (1) DE2815151A1 (de)
GB (1) GB2019156B (de)
HK (1) HK44282A (de)
SG (1) SG45482G (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4479706A (en) * 1980-09-09 1984-10-30 Ricoh Company, Ltd. Distance measuring circuit
JPS57119330A (en) * 1981-01-16 1982-07-24 Canon Inc Camera incorporating auto-focusing system
DE3416072C2 (de) * 1983-04-28 1993-12-16 Canon Kk Automatische Scharfeinstellungsdetektoreinrichtung
JPS60128412A (ja) * 1983-12-15 1985-07-09 Canon Inc 自動焦点検出装置の発光量制御方法
JPS61109415U (de) * 1984-12-20 1986-07-11
WO1989007771A1 (en) * 1988-02-10 1989-08-24 Messerschmitt-Bölkow-Blohm Gesellschaft Mit Beschr Optical tracking instrument
JPH0227126U (de) * 1989-08-17 1990-02-22
US5254846A (en) * 1990-06-01 1993-10-19 Banner Engineering Corporation Analog photosensor operating on the power from a standard 4-20 ma instrumentation current loop
EP0849896B1 (de) * 1994-09-03 2001-03-07 International Business Machines Corporation Sender- und Empfängermodul zur drahtlosen Datenübertragung
JP3294982B2 (ja) * 1995-11-17 2002-06-24 旭光学工業株式会社 赤外線通信機能付カメラ
JP3940806B2 (ja) * 1998-05-15 2007-07-04 株式会社ニコン 光波測距装置
FR2820216B1 (fr) * 2001-01-26 2003-04-25 Wany Sa Procede et dispositif de detection d'obstacle et de mesure de distance par rayonnement infrarouge
DE102009013735A1 (de) * 2008-03-20 2009-11-05 Cedes Ag Sensor für die Überwachung eines Überwachungsbereichs

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT307762B (de) * 1971-04-28 1973-06-12 Eumig Verfahren und Einrichtung zur Entfernungsmessung
US3815994A (en) * 1972-03-31 1974-06-11 Kaman Sciences Corp System and method for measuring distance
DE2650986A1 (de) * 1975-11-17 1977-05-26 Bell & Howell Co Regelsystem fuer die automatische scharfeinstellung
US4178087A (en) * 1978-10-02 1979-12-11 Polaroid Corporation Autofocus movie camera having focus correction means

Also Published As

Publication number Publication date
US4313655A (en) 1982-02-02
GB2019156A (en) 1979-10-24
DE2815151A1 (de) 1979-10-18
HK44282A (en) 1982-10-22
GB2019156B (en) 1982-07-07
JPS54139728A (en) 1979-10-30
JPS5746764B2 (de) 1982-10-05

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