FR2636145B1 - Dispositif de detection de position, notamment de tirage d'un objectif photographique zoom - Google Patents

Dispositif de detection de position, notamment de tirage d'un objectif photographique zoom

Info

Publication number
FR2636145B1
FR2636145B1 FR8908784A FR8908784A FR2636145B1 FR 2636145 B1 FR2636145 B1 FR 2636145B1 FR 8908784 A FR8908784 A FR 8908784A FR 8908784 A FR8908784 A FR 8908784A FR 2636145 B1 FR2636145 B1 FR 2636145B1
Authority
FR
France
Prior art keywords
fulling
detection device
position detection
photographic lens
zoom photographic
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.)
Expired - Fee Related
Application number
FR8908784A
Other languages
English (en)
French (fr)
Other versions
FR2636145A1 (fr
Inventor
Kobayashi Takeo
Tabata Yasushi
Numako Norio
Nagai Katsuto-Shi
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.)
Pentax Corp
Original Assignee
Asahi Kogaku Kogyo Co Ltd
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
Priority claimed from JP16389588A external-priority patent/JP2717546B2/ja
Priority claimed from JP16389688A external-priority patent/JP2717547B2/ja
Priority claimed from JP16389788A external-priority patent/JP2717548B2/ja
Application filed by Asahi Kogaku Kogyo Co Ltd filed Critical Asahi Kogaku Kogyo Co Ltd
Publication of FR2636145A1 publication Critical patent/FR2636145A1/fr
Application granted granted Critical
Publication of FR2636145B1 publication Critical patent/FR2636145B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/18—Signals indicating condition of a camera member or suitability of light
    • 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
    • G02B7/282—Autofocusing of zoom lenses
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/02—Bodies
    • G03B17/12—Bodies with means for supporting objectives, supplementary lenses, filters, masks, or turrets
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B3/00—Focusing arrangements of general interest for cameras, projectors or printers
    • G03B3/10—Power-operated focusing
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/22—Analogue/digital converters pattern-reading type
    • H03M1/24—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip
    • H03M1/28—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip with non-weighted coding
    • H03M1/285—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip with non-weighted coding of the unit Hamming distance type, e.g. Gray code
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B2215/00—Special procedures for taking photographs; Apparatus therefor
    • G03B2215/05—Combinations of cameras with electronic flash units
    • G03B2215/0503—Built-in units

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Lens Barrels (AREA)
FR8908784A 1988-06-30 1989-06-30 Dispositif de detection de position, notamment de tirage d'un objectif photographique zoom Expired - Fee Related FR2636145B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP16389588A JP2717546B2 (ja) 1988-06-30 1988-06-30 電動ズーム装置
JP16389688A JP2717547B2 (ja) 1988-06-30 1988-06-30 電動ズーム装置
JP16389788A JP2717548B2 (ja) 1988-06-30 1988-06-30 ズームレンズのレンズ位置検出装置

Publications (2)

Publication Number Publication Date
FR2636145A1 FR2636145A1 (fr) 1990-03-09
FR2636145B1 true FR2636145B1 (fr) 1994-03-18

Family

ID=27322248

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8908784A Expired - Fee Related FR2636145B1 (fr) 1988-06-30 1989-06-30 Dispositif de detection de position, notamment de tirage d'un objectif photographique zoom

Country Status (3)

Country Link
DE (1) DE3921618C2 (de)
FR (1) FR2636145B1 (de)
GB (1) GB2221107B (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5291232A (en) * 1988-06-30 1994-03-01 Asahi Kogaku Kogyo Kabushiki Kaisha Device for controlling an operation of a movable member
FR2633733B1 (fr) * 1988-06-30 1994-05-13 Asahi Kogaku Kogyo Kk Appareil photographique a commande electronique ayant des modes de fonctionnement macro et normal
US5396306A (en) * 1991-05-21 1995-03-07 Asahi Kogaku Kogyo Kabushiki Kaisha Power lens and camera system
FR2676839B1 (fr) * 1991-05-21 1997-05-23 Asahi Optical Co Ltd Appareil photo comportant un objectif zoom motorise.
US5450156A (en) * 1991-05-21 1995-09-12 Asahi Kogaku Kogyo Kabushiki Kaisha Power zoom lens and camera having same
US5907725A (en) * 1996-01-26 1999-05-25 Asahi Kogaku Kogyo Kabushiki Kaisha Electronically controlled camera
GB2309603B (en) * 1996-01-26 2000-06-21 Asahi Optical Co Ltd Electronically controlled camera
GB2345983B (en) * 1996-01-26 2000-09-06 Asahi Optical Co Ltd Electronically controlled camera

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3163858A (en) * 1960-03-18 1964-12-29 Gen Precision Inc Analog-to-digital converter
DE1916348A1 (de) * 1969-03-29 1970-10-08 Licentia Gmbh Einrichtung zur Steuerung einer Bewegung durch fortlaufende Einstellung mindestens eines Positionskoordinaten-Registers
JPS5326149A (en) * 1976-08-23 1978-03-10 Ishikawajima Harima Heavy Ind Relative position detector
US4148434A (en) * 1977-12-05 1979-04-10 Pitney-Bowes, Inc. Method of producing a binary code and means for using the same
DE2938318C2 (de) * 1979-09-21 1988-05-26 Dr. Johannes Heidenhain Gmbh, 8225 Traunreut Meßeinrichtung
US4402586A (en) * 1980-08-04 1983-09-06 Canon Kabushiki Kaisha Focusing system
JPS58208733A (ja) * 1982-05-28 1983-12-05 Minolta Camera Co Ltd 自動及び手動焦点調節可能なカメラ
JPS5941014A (ja) * 1982-08-31 1984-03-07 Canon Inc コ−ド板
US4575212A (en) * 1982-12-28 1986-03-11 Minolta Camera Kabushiki Kaisha Camera with an improved focus detecting system
DD232349A1 (de) * 1984-08-02 1986-01-22 Zeiss Jena Veb Carl Abtastraster fuer einen dual-binaerkodierten massstab fuer laengen- und winkelmesssysteme
JPS61245121A (ja) * 1985-04-23 1986-10-31 Victor Co Of Japan Ltd ズ−ムレンズ装置
JPH07119868B2 (ja) * 1985-06-20 1995-12-20 オリンパス光学工業株式会社 交換レンズの距離情報出力装置
DE3604160A1 (en) * 1986-02-10 1987-09-10 T & R Electronic Gmbh Auxiliary device in connection with an electronic counter control device

Also Published As

Publication number Publication date
GB2221107B (en) 1992-12-16
GB2221107A (en) 1990-01-24
GB8915150D0 (en) 1989-08-23
DE3921618C2 (de) 1996-07-11
FR2636145A1 (fr) 1990-03-09
DE3921618A1 (de) 1990-01-04

Similar Documents

Publication Publication Date Title
FR2660448B1 (fr) Dispositif de projection d'images.
FR2676830B1 (fr) Dispositif d'entrainement de lentilles, objectif zoom et systeme d'appareil photo.
FR2662510B1 (fr) Dispositif de retenue d'un element annulaire.
FR2597623B1 (fr) Monture d'objectif photographique a mise au point automatique
FR2649218B1 (fr) Appareil photographique a objectif zoom
FR2661523B1 (fr) Systeme d'appareil photo et objectif photographique correspondant.
FR2662853B1 (fr) Detecteur d'image a dispositif a couplage de charge.
FR2666854B1 (fr) Dispositif de commande de moyens d'antipompage d'un compresseur.
FR2644663B1 (fr) Dispositif pour la commande d'un flash d'appareil photographique
FR2645655B1 (fr) Monture d'accessoire d'objectif photographique
FR2636145B1 (fr) Dispositif de detection de position, notamment de tirage d'un objectif photographique zoom
FR2655164B1 (fr) Dispositif d'obturateur d'appareil photo.
FR2647555B1 (fr) Dispositif d'interception de lumiere pour objectif photographique
FR2648242B1 (fr) Appareil photographique a objectif zoom
FR2668844B1 (fr) Dispositif d'affichage a plasma.
FR2651336B1 (fr) Dispositif de commande d'un appareil photographique reflex monoobjectif.
FR2637437B1 (fr) Appareil photographique a video fixe
FR2669748B1 (fr) Dispositif de photometrie associe a un systeme de grossissement de viseur d'appareil photographique.
FR2674368B1 (fr) Contacteur de mise en óoeuvre d'appareil photo a objectif zoom.
FR2662513B1 (fr) Dispositif recuperateur de l'energie d'un faisceau laser.
FR2665479B1 (fr) Dispositif d'actionnement d'un element obturateur pivotant.
FR2660080B1 (fr) Dispositif de montage d'un objectif photographique ou de camera.
FR2641620B1 (fr) Dispositif de telecommande d'un appareil photographique
FR2636746B1 (fr) Dispositif de commande d'exposition d'appareil photographique
FR2608102B1 (fr) Dispositif d'actionnement d'un volet d'obturation

Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20080229