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GB2254706B - Movement control device for a camera lens - Google Patents

Movement control device for a camera lens

Info

Publication number
GB2254706B
GB2254706B GB9210427A GB9210427A GB2254706B GB 2254706 B GB2254706 B GB 2254706B GB 9210427 A GB9210427 A GB 9210427A GB 9210427 A GB9210427 A GB 9210427A GB 2254706 B GB2254706 B GB 2254706B
Authority
GB
United Kingdom
Prior art keywords
control device
camera lens
movement control
movement
lens
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
GB9210427A
Other versions
GB9210427D0 (en
GB2254706A (en
Inventor
Takeo Kobayashi
Yasushi Tabata
Takeo Nishida
Norio Numako
Katsutoshi Nagai
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 JP16389988A external-priority patent/JP2767109B2/en
Priority claimed from JP3131589A external-priority patent/JP2750598B2/en
Application filed by Asahi Kogaku Kogyo Co Ltd filed Critical Asahi Kogaku Kogyo Co Ltd
Publication of GB9210427D0 publication Critical patent/GB9210427D0/en
Publication of GB2254706A publication Critical patent/GB2254706A/en
Application granted granted Critical
Publication of GB2254706B publication Critical patent/GB2254706B/en
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
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
    • G02B7/10—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification by relative axial movement of several lenses, e.g. of varifocal objective lens
    • G02B7/102—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification by relative axial movement of several lenses, e.g. of varifocal objective lens controlled by a microcomputer
    • 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
    • G03B7/00—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
    • G03B7/08—Control effected solely on the basis of the response, to the intensity of the light received by the camera, of a built-in light-sensitive device
    • G03B7/091—Digital circuits
    • 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)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Lens Barrels (AREA)
GB9210427A 1988-06-30 1992-05-15 Movement control device for a camera lens Expired - Fee Related GB2254706B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP16389988A JP2767109B2 (en) 1988-06-30 1988-06-30 Electronic control camera with macro shooting and normal shooting functions
JP3131589A JP2750598B2 (en) 1989-02-10 1989-02-10 Electronic control camera with macro function

Publications (3)

Publication Number Publication Date
GB9210427D0 GB9210427D0 (en) 1992-07-01
GB2254706A GB2254706A (en) 1992-10-14
GB2254706B true GB2254706B (en) 1993-01-27

Family

ID=26369766

Family Applications (4)

Application Number Title Priority Date Filing Date
GB8915127A Expired - Fee Related GB2221998B (en) 1988-06-30 1989-06-30 Electronically controlled camera having macro and normal operational modes
GB9210428A Expired - Fee Related GB2254707B (en) 1988-06-30 1992-05-15 Electronically controlled camera
GB9210429A Expired - Fee Related GB2254708B (en) 1988-06-30 1992-05-15 Electronically controlled camera having macro and normal operational modes
GB9210427A Expired - Fee Related GB2254706B (en) 1988-06-30 1992-05-15 Movement control device for a camera lens

Family Applications Before (3)

Application Number Title Priority Date Filing Date
GB8915127A Expired - Fee Related GB2221998B (en) 1988-06-30 1989-06-30 Electronically controlled camera having macro and normal operational modes
GB9210428A Expired - Fee Related GB2254707B (en) 1988-06-30 1992-05-15 Electronically controlled camera
GB9210429A Expired - Fee Related GB2254708B (en) 1988-06-30 1992-05-15 Electronically controlled camera having macro and normal operational modes

Country Status (2)

Country Link
FR (3) FR2633733B1 (en)
GB (4) GB2221998B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4104569A1 (en) * 1990-02-14 1991-10-02 Asahi Optical Co Ltd CAMERA WITH MOTOR ADJUSTABLE VARIO LENS
GB2277165B (en) * 1990-02-14 1995-01-04 Asahi Optical Co Ltd Camera having a plurality of control zoom modes
JP2942296B2 (en) * 1990-02-15 1999-08-30 旭光学工業株式会社 Electric zoom device
JP6425421B2 (en) * 2014-05-29 2018-11-21 キヤノン株式会社 Electronic device, control method therefor, program, and recording medium

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4962399A (en) * 1988-02-03 1990-10-09 Asahi Kogaku Kogyo Kabushiki Kaisha Zoom lens driving apparatus

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT248236B (en) * 1960-10-07 1966-07-25 Philippa Durst Device for the automatic focusing of a recording lens
DE2349385A1 (en) * 1972-10-03 1974-04-18 Hauser Raimund CAMERA
US4002405A (en) * 1975-04-03 1977-01-11 Curt Stahl Variable speed control for zooming
GB2020051B (en) * 1978-04-25 1982-06-30 Polaroid Corp Cameras with rangefinders
US4303321A (en) * 1979-12-12 1981-12-01 Asahi Kogaku Kogyo Kabushiki Kaisha Photographic camera of automatic focussing type
JPS6239391Y2 (en) * 1980-07-25 1987-10-07
JPS5877306U (en) * 1981-11-19 1983-05-25 旭光学工業株式会社 zooming device
JPS59191020A (en) * 1983-04-14 1984-10-30 Canon Inc Automatic focusing camera
JPS6060739U (en) * 1983-10-03 1985-04-27 富士写真フイルム株式会社 Improper lens setting detection device for wide-angle/telephoto switching cameras
JPS60143310A (en) * 1983-12-30 1985-07-29 Asahi Optical Co Ltd Automatic focusing device of zoom lens
JPS61148434A (en) * 1984-12-22 1986-07-07 Fuji Photo Film Co Ltd Automatic focus device having short-range focusing function
US4717932A (en) * 1985-05-14 1988-01-05 Konishiroku Photo Industry Co., Ltd. Focal length switching type camera
DE8718027U1 (en) * 1986-05-12 1992-10-15 Asahi Kogaku Kogyo K.K., Tokio/Tokyo CENTRAL LOCKING CAMERA WITH VARIO OPTICS
FR2636145B1 (en) * 1988-06-30 1994-03-18 Asahi Kogaku Kogyo Kk POSITION DETECTION DEVICE, PARTICULARLY FOR FULLING A ZOOM PHOTOGRAPHIC LENS

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4962399A (en) * 1988-02-03 1990-10-09 Asahi Kogaku Kogyo Kabushiki Kaisha Zoom lens driving apparatus

Also Published As

Publication number Publication date
FR2661257A1 (en) 1991-10-25
FR2661258A1 (en) 1991-10-25
GB2254708B (en) 1993-01-27
GB9210429D0 (en) 1992-07-01
GB9210428D0 (en) 1992-07-01
GB9210427D0 (en) 1992-07-01
GB2254707B (en) 1993-01-27
GB2254706A (en) 1992-10-14
FR2661257B1 (en) 1993-10-22
FR2633733A1 (en) 1990-01-05
GB2254708A (en) 1992-10-14
FR2661258B1 (en) 1993-11-12
GB2221998B (en) 1993-01-27
GB2221998A (en) 1990-02-21
GB8915127D0 (en) 1989-08-23
GB2254707A (en) 1992-10-14
FR2633733B1 (en) 1994-05-13

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20070630