FR2403589A1 - Systeme de mise au point automatique - Google Patents

Systeme de mise au point automatique

Info

Publication number
FR2403589A1
FR2403589A1 FR7826752A FR7826752A FR2403589A1 FR 2403589 A1 FR2403589 A1 FR 2403589A1 FR 7826752 A FR7826752 A FR 7826752A FR 7826752 A FR7826752 A FR 7826752A FR 2403589 A1 FR2403589 A1 FR 2403589A1
Authority
FR
France
Prior art keywords
lens
scanning
output signal
image
visual field
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.)
Withdrawn
Application number
FR7826752A
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.)
Honeywell Inc
Original Assignee
Honeywell Inc
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 Honeywell Inc filed Critical Honeywell Inc
Publication of FR2403589A1 publication Critical patent/FR2403589A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • G02B7/305—Systems for automatic generation of focusing signals using parallactic triangle with a base line using a scanner

Abstract

Système de mise au point automatique d'une image d'un objet formée à l'aide d'un objectif à distance focale variable. Le système comprend une lentille pour fournir un foyer convenable à une image d'un objet dans le champ visuel, des moyens sensibles à la lumière, des moyens de balayage périodiques du champ visuel selon une partie active et une partie de retour du balayage déterminées par une première et une seconde position desdits moyens de balayage, des moyens électroniques connectés auxdits moyens sensibles à la lumière pour produire un signal de sortie après la fin de la partie active du balayage, la valeur dudit signal indiquant l'erreur entre la position effective de la lentille et la position souhaitée de celle-ci pour un foyer approprié à l'objet, des moyens d'entraînement de la lentille vers la position souhaitee selon ledit signal de sortie, et des moyens de stockage du signal de sortie pendant le balayage pour faire fonctionner lesdits moyens d'entraînement pendant les deux parties du balayage. Application aux caméras.
FR7826752A 1977-09-19 1978-09-19 Systeme de mise au point automatique Withdrawn FR2403589A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/834,760 US4207461A (en) 1977-09-19 1977-09-19 Continuous focus proportional controller

Publications (1)

Publication Number Publication Date
FR2403589A1 true FR2403589A1 (fr) 1979-04-13

Family

ID=25267739

Family Applications (2)

Application Number Title Priority Date Filing Date
FR7826753A Granted FR2403590A1 (fr) 1977-09-19 1978-09-19 Dispositif de commande electronique actionne par commutateurs
FR7826752A Withdrawn FR2403589A1 (fr) 1977-09-19 1978-09-19 Systeme de mise au point automatique

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FR7826753A Granted FR2403590A1 (fr) 1977-09-19 1978-09-19 Dispositif de commande electronique actionne par commutateurs

Country Status (6)

Country Link
US (1) US4207461A (fr)
JP (1) JPS5496019A (fr)
CA (1) CA1110098A (fr)
DE (1) DE2840504A1 (fr)
FR (2) FR2403590A1 (fr)
GB (2) GB2008794B (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55140806A (en) * 1979-04-23 1980-11-04 Hoya Corp Binoculars provided with automatic focus mechanism
JPS55144212A (en) * 1979-04-28 1980-11-11 Seiko Koki Kk Automatic focus adjusting device
US4931630A (en) * 1989-04-04 1990-06-05 Wyko Corporation Apparatus and method for automatically focusing an interference microscope
US5122648A (en) * 1990-06-01 1992-06-16 Wyko Corporation Apparatus and method for automatically focusing an interference microscope
US6513940B1 (en) * 2002-02-07 2003-02-04 Chung-Shan Institute Of Science And Technology Field-of-view switching and focusing system of common-optical-path periscope

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2069414A5 (fr) * 1969-11-15 1971-09-03 Canon Kk
US3958117A (en) * 1975-07-15 1976-05-18 Honeywell Inc. Distance determining and automatic focusing apparatus

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4059756A (en) * 1976-10-01 1977-11-22 Honeywell Inc. Focus control system with dual scan

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2069414A5 (fr) * 1969-11-15 1971-09-03 Canon Kk
US3958117A (en) * 1975-07-15 1976-05-18 Honeywell Inc. Distance determining and automatic focusing apparatus

Also Published As

Publication number Publication date
GB2008355B (en) 1982-08-25
GB2008794A (en) 1979-06-06
FR2403590A1 (fr) 1979-04-13
GB2008355A (en) 1979-05-31
JPS5496019A (en) 1979-07-30
FR2403590B1 (fr) 1983-10-28
GB2008794B (en) 1982-03-10
US4207461A (en) 1980-06-10
CA1110098A (fr) 1981-10-06
DE2840504A1 (de) 1979-03-29

Similar Documents

Publication Publication Date Title
FR2661008B1 (fr) Systeme de lentilles pour focaliser le faisceau de sortie d'un laser a semi-conducteur.
KR840007471A (ko) 카메라의 자동 촛점 장치
ES2129051T3 (es) Opticas para camara.
EP0144732A3 (en) Device for automatically focusing optical implements
FR2403589A1 (fr) Systeme de mise au point automatique
FR2393337A1 (fr) Dispositif de mise au point automatique pour des appareils photographiques et cinematographiques
JPS6048010B2 (ja) 自動焦合装置用制御回路
EP0377454A3 (fr) Dispositif pour la lecture d'images
JPS5455429A (en) Automatic exposure control device for camera with blur detecting circuit
GB1290021A (fr)
GB1180155A (en) Improvements in and Relating to Cameras
FR2409530A1 (fr) Dispositif d'avertissement pour un appareil photographique a mise au point automatique
FR2448732A1 (fr) Dispositif de detection de mise au point pour une camera
JPS5995336U (ja) ビデオカメラ
JPS57154206A (en) Focusing device
JPS54140558A (en) Beam position detecting device for recorder
IE782563L (en) Focus control system
JP2796860B2 (ja) カメラの測距範囲表示装置
JPS5778539A (en) Scanning device
JPS5779586A (en) Lighting device of manual subscanning type reader
SU669320A1 (ru) Съемочно-проекционное параксиальное устройство
SU406182A1 (fr)
JPS60112209U (ja) 自動合焦装置
JPS60114704A (ja) 線径などの測定方法
JPS55106425A (en) Single-lens reflex camera

Legal Events

Date Code Title Description
RE Withdrawal of published application