NL6400287A - - Google Patents

Info

Publication number
NL6400287A
NL6400287A NL6400287A NL6400287A NL6400287A NL 6400287 A NL6400287 A NL 6400287A NL 6400287 A NL6400287 A NL 6400287A NL 6400287 A NL6400287 A NL 6400287A NL 6400287 A NL6400287 A NL 6400287A
Authority
NL
Netherlands
Application number
NL6400287A
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 filed Critical
Publication of NL6400287A publication Critical patent/NL6400287A/xx

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P5/00—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors
    • H02P5/46—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors for speed regulation of two or more dynamo-electric motors in relation to one another
    • H02P5/50—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors for speed regulation of two or more dynamo-electric motors in relation to one another by comparing electrical values representing the speeds
    • 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
    • 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
    • G02B7/08—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted to co-operate with a remote control mechanism
    • 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
    • G03B17/14—Bodies with means for supporting objectives, supplementary lenses, filters, masks, or turrets interchangeably
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D3/00—Control of position or direction
    • G05D3/12—Control of position or direction using feedback
    • G05D3/14—Control of position or direction using feedback using an analogue comparing device
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D3/00—Control of position or direction
    • G05D3/12—Control of position or direction using feedback
    • G05D3/14—Control of position or direction using feedback using an analogue comparing device
    • G05D3/1409—Control of position or direction using feedback using an analogue comparing device with dc amplifier chain

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Automation & Control Theory (AREA)
  • Power Engineering (AREA)
  • Lens Barrels (AREA)
NL6400287A 1963-01-18 1964-01-16 NL6400287A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB228263 1963-01-18

Publications (1)

Publication Number Publication Date
NL6400287A true NL6400287A (fr) 1964-07-20

Family

ID=9736814

Family Applications (1)

Application Number Title Priority Date Filing Date
NL6400287A NL6400287A (fr) 1963-01-18 1964-01-16

Country Status (4)

Country Link
US (1) US3400212A (fr)
CH (1) CH426991A (fr)
DE (1) DE1463489A1 (fr)
NL (1) NL6400287A (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3573590A (en) * 1969-12-05 1971-04-06 New Britain Machine Co Horizontal boring machine
DE2131915C3 (de) * 1971-06-26 1975-01-23 Kienzle Apparate Gmbh, 7730 Villingen Getriebeanordnung für ein Kompensationsmeßgerät, insbesondere Fahrtschreiber
FR2298115A1 (fr) * 1975-01-14 1976-08-13 Portenseigne Dispositif de reglage de la distance objectif tube de prise de vue dans une camera de television
DE2558874C3 (de) * 1975-12-27 1978-10-12 Hoechst Ag, 6000 Frankfurt Vorrichtung zum Ausrichten einer Kopiervorlage
US4161756A (en) * 1976-03-19 1979-07-17 Jos. Schneider & Co. Optische Werke Control system for varifocal objective
US4176935A (en) * 1977-10-25 1979-12-04 George Smith Motorized lens ring adjustor for still camera lens
JPS56168610A (en) * 1980-05-30 1981-12-24 Olympus Optical Co Ltd Image pickup device
JPS5719718A (en) * 1980-07-09 1982-02-02 Canon Inc Driving circuit for camera

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2147674A (en) * 1938-03-15 1939-02-21 Submarine Signal Co Apparatus for controlling rotation
US2443048A (en) * 1946-03-30 1948-06-08 Gen Electric Speed ratio control
US2720817A (en) * 1953-04-23 1955-10-18 Taylor Taylor & Hobson Ltd Control devices for variable focal length optical objectives
US2782683A (en) * 1954-02-18 1957-02-26 Joseph B Walker Selective electrical lens adjusting machanisms for variable magnification systems
US2891206A (en) * 1954-12-14 1959-06-16 Allis Louis Co Motor control circuit for constant cutting speed lathe
US2984154A (en) * 1958-06-02 1961-05-16 Joseph B Walker Zoom lens focusing mechanism
US3093784A (en) * 1961-04-26 1963-06-11 Alfred I Mintzer Simplified aided tracking and coasting system
GB989904A (en) * 1962-09-12 1965-04-22 Evershed Vignoles Ltd Improvements relating to optical systems

Also Published As

Publication number Publication date
US3400212A (en) 1968-09-03
DE1463489A1 (de) 1969-01-16
CH426991A (fr) 1966-12-31

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