[go: up one dir, main page]

GB1006067A - Improvements in or relating to remote control devices - Google Patents

Improvements in or relating to remote control devices

Info

Publication number
GB1006067A
GB1006067A GB715461A GB715461A GB1006067A GB 1006067 A GB1006067 A GB 1006067A GB 715461 A GB715461 A GB 715461A GB 715461 A GB715461 A GB 715461A GB 1006067 A GB1006067 A GB 1006067A
Authority
GB
United Kingdom
Prior art keywords
flash
remote control
control devices
feb
semi
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
Application number
GB715461A
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.)
DEREK GEORGE SNOWDEN
PARISTOR Ltd
Original Assignee
DEREK GEORGE SNOWDEN
PARISTOR 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
Application filed by DEREK GEORGE SNOWDEN, PARISTOR Ltd filed Critical DEREK GEORGE SNOWDEN
Priority to GB715461A priority Critical patent/GB1006067A/en
Publication of GB1006067A publication Critical patent/GB1006067A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/30—Circuit arrangements in which the lamp is fed by pulses, e.g. flash lamp
    • H05B41/32—Circuit arrangements in which the lamp is fed by pulses, e.g. flash lamp for single flash operation
    • H05B41/325—Circuit arrangements in which the lamp is fed by pulses, e.g. flash lamp for single flash operation by measuring the incident light
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/30—Circuit arrangements in which the lamp is fed by pulses, e.g. flash lamp
    • H05B41/32—Circuit arrangements in which the lamp is fed by pulses, e.g. flash lamp for single flash operation

Landscapes

  • Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)
  • Stroboscope Apparatuses (AREA)

Abstract

1,006,067. Remote control devices. PARISTOR Ltd. and D. G. SNOWDON. Feb. 21, 1962 [Feb. 27,1961], No. 7154/61. Heading G1A. A flash emitting element in a slave photographic flash unit is actuated by a current change in the circuit of a semi-conducting device caused by the flash of a master unit. The slave unit shown comprises a photo-transistor T1 whose output in response to a flash of light from the master unit is amplified by transistors T2 and T3 and is applied as a control signal to the base of a power transistor T4 the emitter and collector of which is connected across a series circuit consisting of a flash bulb L1 and a large capacitor C1. In response to a control signal on the base of T4 the capacitor is thus discharged through the bulb L1 and a light flash is emitted. The power transistor T4 may be replaced by a silicon controlled rectifier or any other semi-conductor device.
GB715461A 1961-02-27 1961-02-27 Improvements in or relating to remote control devices Expired GB1006067A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB715461A GB1006067A (en) 1961-02-27 1961-02-27 Improvements in or relating to remote control devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB715461A GB1006067A (en) 1961-02-27 1961-02-27 Improvements in or relating to remote control devices

Publications (1)

Publication Number Publication Date
GB1006067A true GB1006067A (en) 1965-09-29

Family

ID=9827653

Family Applications (1)

Application Number Title Priority Date Filing Date
GB715461A Expired GB1006067A (en) 1961-02-27 1961-02-27 Improvements in or relating to remote control devices

Country Status (1)

Country Link
GB (1) GB1006067A (en)

Similar Documents

Publication Publication Date Title
GB1117058A (en) Improvements in or relating to electronic flash apparatus for use in photography and to light responsive control circuits for use in such apparatus
GB1384594A (en) Solid-state electronic relay
GB921656A (en) Improvements in transistor amplifiers or relay systems
GB1375443A (en)
GB1432406A (en) Buffer circuits
GB1006067A (en) Improvements in or relating to remote control devices
GB1206054A (en) Improvements in or relating to signal slope responsive circuits
GB1006314A (en) Voltage threshold detector
GB1014104A (en) Light-operated switching circuits
GB1177655A (en) Improvements relating to Photosensitive Recieving Devices.
FR2448274A1 (en) Supply circuit for semiconductor laser or LED - protects against overload using photocurrent to control series transistor
SU374711A1 (en) SINGLE VIBRATOR
GB982019A (en) A comparison circuit for comparing a varying potential with a reference potential
GB1252727A (en)
SU585558A1 (en) Delay device
GB1190185A (en) Light Sensitive Circuit Arrangements
SU597021A1 (en) Timer
SU902224A1 (en) Two-threshold flip-flop
SU391711A1 (en)
SU432476A1 (en) DEVICE FOR PROTECTION FROM OVERLOAD POWER SUPPLY OF DC POWER
SU681544A1 (en) Monovibrator
SU620015A1 (en) Threshold-device
SU541266A1 (en) Odnovibrator
JPS5540420A (en) Power supply control circuit of camera
SU438098A1 (en) Odnovibrator