EP0006879A1 - Steuersystem zur aufrechterhaltung eines konstanten verhältnisses - Google Patents

Steuersystem zur aufrechterhaltung eines konstanten verhältnisses

Info

Publication number
EP0006879A1
EP0006879A1 EP19780900065 EP78900065A EP0006879A1 EP 0006879 A1 EP0006879 A1 EP 0006879A1 EP 19780900065 EP19780900065 EP 19780900065 EP 78900065 A EP78900065 A EP 78900065A EP 0006879 A1 EP0006879 A1 EP 0006879A1
Authority
EP
European Patent Office
Prior art keywords
control system
preserving control
ratio preserving
ratio
preserving
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Withdrawn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
EP19780900065
Other languages
English (en)
French (fr)
Inventor
Dave Pandres, Jr.
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.)
Individual
Original Assignee
Individual
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 US05/820,005 external-priority patent/US4156933A/en
Application filed by Individual filed Critical Individual
Publication of EP0006879A1 publication Critical patent/EP0006879A1/de
Withdrawn legal-status Critical Current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
    • G02B7/02—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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
    • G06G7/48—Analogue computers for specific processes, systems or devices, e.g. simulators
    • G06G7/66—Analogue computers for specific processes, systems or devices, e.g. simulators for control systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mathematical Physics (AREA)
  • Optics & Photonics (AREA)
  • Lens Barrels (AREA)
  • Feedback Control In General (AREA)
EP19780900065 1977-07-28 1979-02-27 Steuersystem zur aufrechterhaltung eines konstanten verhältnisses Withdrawn EP0006879A1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US05/820,005 US4156933A (en) 1977-07-28 1977-07-28 Ratio preserving control system
US820005 1977-07-28
US05/895,139 US4145732A (en) 1977-07-28 1978-04-10 Ratio preserving control system for a lens
US895139 1978-04-10

Publications (1)

Publication Number Publication Date
EP0006879A1 true EP0006879A1 (de) 1980-01-23

Family

ID=27124413

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19780900065 Withdrawn EP0006879A1 (de) 1977-07-28 1979-02-27 Steuersystem zur aufrechterhaltung eines konstanten verhältnisses

Country Status (4)

Country Link
EP (1) EP0006879A1 (de)
JP (1) JPS601602B2 (de)
GB (1) GB2021286B (de)
WO (1) WO1979000072A1 (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3745055C2 (de) * 1986-03-03 1998-02-26 Canon Kk Einstellvorrichtung für ein optisches System einer Kamera
JP2753495B2 (ja) * 1988-03-14 1998-05-20 チノン株式会社 カメラズームレンズ自動変倍装置
US5157434A (en) * 1988-09-14 1992-10-20 Asahi Kogaku Kogyo Kabushiki Kaisha Autofocusing system for camera
DE68929375T2 (de) * 1988-09-22 2002-11-21 Asahi Kogaku Kogyo K.K., Tokio/Tokyo Steuervorrichtung für die Bildvergrösserung einer Kamera
JPH0734405Y2 (ja) * 1988-09-29 1995-08-02 旭光学工業株式会社 カメラのレンズ収納装置
US5305044A (en) * 1988-09-29 1994-04-19 Asahi Kogaku Kogyo Kabushiki Kaisha Autofocusing system for a camera
US20030051594A1 (en) 2001-09-19 2003-03-20 Yamaha Corporation Electronic keyboard musical instrument
JP4804398B2 (ja) 2007-03-30 2011-11-02 三洋電機株式会社 撮像装置及び撮影方法
JP2011142645A (ja) * 2011-02-04 2011-07-21 Sanyo Electric Co Ltd 撮像装置
JP2011142646A (ja) * 2011-02-04 2011-07-21 Sanyo Electric Co Ltd 撮像装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1950166A (en) * 1931-09-14 1934-03-06 Otto B Durholz Variable focus lens unit
NL90813C (de) * 1950-07-18
NL232999A (de) * 1958-06-06
DE1183354B (de) * 1960-04-01 1964-12-10 Vockenhuber Karl Kamera, insbesondere Schmalfilmkamera
CH481389A (fr) * 1968-09-26 1969-11-15 Paillard Sa Caméra cinématographique
US3765748A (en) * 1972-09-01 1973-10-16 H Mito Mechanism for relative adjustment of axially spaced lens components
JPS5127577B2 (de) * 1972-12-08 1976-08-13

Also Published As

Publication number Publication date
JPS5425819A (en) 1979-02-27
GB2021286A (en) 1979-02-22
WO1979000072A1 (en) 1979-02-22
GB2021286B (en) 1982-05-12
JPS601602B2 (ja) 1985-01-16

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): FR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn