EP0006879A1 - Ratio preserving control system - Google Patents

Ratio preserving control system

Info

Publication number: EP0006879A1
Authority: EP; European Patent Office
Prior art keywords: control system; preserving control; ratio preserving; ratio; preserving
Prior art date: 1977-07-28
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 Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Withdrawn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

German (de)

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.)

1977-07-28

Filing date

1979-02-27

Publication date

1980-01-23

1977-07-28 Priority claimed from US05/820,005 external-priority patent/US4156933A/en

1979-02-27 Application filed by Individual filed Critical Individual

1980-01-23 Publication of EP0006879A1 publication Critical patent/EP0006879A1/en

Status Withdrawn legal-status Critical Current

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 OR CALCULATING; 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

Physics & Mathematics (AREA)
Engineering & Computer Science (AREA)
General Physics & Mathematics (AREA)
Computer Hardware Design (AREA)
Theoretical Computer Science (AREA)
Optics & Photonics (AREA)
Automation & Control Theory (AREA)
Mathematical Physics (AREA)
Lens Barrels (AREA)
Feedback Control In General (AREA)

EP19780900065 1977-07-28 1979-02-27 Ratio preserving control system Withdrawn EP0006879A1 (en)

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
US05/895,139 US4145732A (en)	1977-07-28	1978-04-10	Ratio preserving control system for a lens
US895139		1978-04-10
US820005		2001-03-29

Publications (1)

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

Family

ID=27124413

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP19780900065 Withdrawn EP0006879A1 (en)	1977-07-28	1979-02-27	Ratio preserving control system

Country Status (4)

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

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE3745055C2 (en) *	1986-03-03	1998-02-26	Canon Kk	Optics setter for camera
JP2753495B2 (en) *	1988-03-14	1998-05-20	チノン株式会社	Camera zoom lens automatic zooming device
US5157434A (en) *	1988-09-14	1992-10-20	Asahi Kogaku Kogyo Kabushiki Kaisha	Autofocusing system for camera
EP0620465B1 (en) *	1988-09-22	2000-12-27	Asahi Kogaku Kogyo Kabushiki Kaisha	Image magnification control device for a camera
JPH0734405Y2 (en) *	1988-09-29	1995-08-02	旭光学工業株式会社	Camera lens storage device
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 (en)	2007-03-30	2011-11-02	三洋電機株式会社	Imaging apparatus and imaging method
JP2011142646A (en) *	2011-02-04	2011-07-21	Sanyo Electric Co Ltd	Imaging apparatus
JP2011142645A (en) *	2011-02-04	2011-07-21	Sanyo Electric Co Ltd	Imaging apparatus

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 (en) *	1950-07-18
NL232999A (en) *	1958-06-06
DE1183354B (en) *	1960-04-01	1964-12-10	Vockenhuber Karl	Camera, especially cine film camera
CH481389A (en) *	1968-09-26	1969-11-15	Paillard Sa	Cinematographic camera
US3765748A (en) *	1972-09-01	1973-10-16	H Mito	Mechanism for relative adjustment of axially spaced lens components
JPS5127577B2 (en) *	1972-12-08	1976-08-13

1978
- 1978-07-25 GB GB7909366A patent/GB2021286B/en not_active Expired
- 1978-07-25 WO PCT/US1978/000047 patent/WO1979000072A1/en not_active Ceased
- 1978-07-28 JP JP53091632A patent/JPS601602B2/en not_active Expired
1979
- 1979-02-27 EP EP19780900065 patent/EP0006879A1/en not_active Withdrawn

Also Published As

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

Publication	Publication Date	Title
AU514830B2 (en)	1981-02-26	Refrigeration control system
AU520720B2 (en)	1982-02-25	Antipilferage system
AU521770B2 (en)	1982-04-29	Transmission control system
AU513844B2 (en)	1981-01-08	Control systems
AU528604B2 (en)	1983-05-05	Rodent control
AU509529B2 (en)	1980-05-15	Gear-ratio control system
AU513870B2 (en)	1981-01-08	Transmission control system
AU514615B2 (en)	1981-02-19	Microprogammed control system
AU523945B2 (en)	1982-08-26	Remote control system
AU537463B2 (en)	1984-06-28	Control system
AU514683B2 (en)	1981-02-19	Refrigeration control
AU526451B2 (en)	1983-01-13	Control arrangement
AU517367B2 (en)	1981-07-23	Flight control system
AU519481B2 (en)	1981-12-03	Gain control
AU517560B2 (en)	1981-08-06	Servo control system
AU525941B2 (en)	1982-12-09	Aur-fuel ratio control
AU518463B2 (en)	1981-10-01	Antiskid control
AU515695B2 (en)	1981-04-16	Microprogramme control unit
EP0006879A1 (en)	1980-01-23	Ratio preserving control system
AU503377B1 (en)	1979-08-30	Egr control system
CA1014822A (en)	1977-08-02	Travel-brake control system
CA1029553A (en)	1978-04-18	Slope control system
SU622042A1 (en)	1978-08-30	Automatic control system
SU631861A1 (en)	1978-11-05	Automatic control system
AU526096B2 (en)	1982-12-16	Thickener control system

Legal Events

Date	Code	Title	Description
1979-11-27	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
1980-01-23	AK	Designated contracting states	Designated state(s): FR
1980-07-03	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
1980-09-03	18D	Application deemed to be withdrawn