GB381485A - Improvements in or relating to methods of generating high frequency electrical energy - Google Patents

Improvements in or relating to methods of generating high frequency electrical energy

Info

Publication number
GB381485A
GB381485A GB9025/32A GB902532A GB381485A GB 381485 A GB381485 A GB 381485A GB 9025/32 A GB9025/32 A GB 9025/32A GB 902532 A GB902532 A GB 902532A GB 381485 A GB381485 A GB 381485A
Authority
GB
United Kingdom
Prior art keywords
rays
mirror
photo
high frequency
source
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
GB9025/32A
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.)
Thales SA
Original Assignee
CSF Compagnie Generale de Telegraphie sans Fil SA
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 CSF Compagnie Generale de Telegraphie sans Fil SA filed Critical CSF Compagnie Generale de Telegraphie sans Fil SA
Publication of GB381485A publication Critical patent/GB381485A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03BGENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B17/00Generation of oscillations using radiation source and detector, e.g. with interposed variable obturator

Landscapes

  • Telescopes (AREA)

Abstract

381,485. Converting. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL, 79, Boulevard Haussmann, Paris. March 29, 1932, No. 9025. Convention date, April 18, 1931. Addition to 381,087. [Class 38 (ii).] In an arrangement for producing high frequency oscillations of substantially constant frequency in which a photo-electric cell is subjected to rays which are modulated at high frequency by means under the control of a master oscillator generating oscillations of relatively low and substantially constant frequency, as described in the parent Specification, rays from a luminous source are caused to move over a fixed interrupting screen located between the source and the photo-electric cell. The low frequency oscillations from the master oscillator are employed to drive a synchronous motor, having a hollow shaft 18 carrying a mirror 13 or prism which causes rays from a source 5 to sweep round a cylindrical mirror 14 associated with a lens 15 whereby the rays are directed upon the photo-electric 6. An interrupting screen having a series of apertures located in the path of the rotating beam is provided, for example at 16 or at 17. Various modifications may be - made in the optical arrangements ; for example, the mirror 13 may be omitted, the tube 19 being then mounted at such an angle with respect to the shaft as to direct the rays on to the mirror 14.
GB9025/32A 1931-04-18 1932-03-29 Improvements in or relating to methods of generating high frequency electrical energy Expired GB381485A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR381485X 1931-04-18

Publications (1)

Publication Number Publication Date
GB381485A true GB381485A (en) 1932-10-06

Family

ID=8895374

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9025/32A Expired GB381485A (en) 1931-04-18 1932-03-29 Improvements in or relating to methods of generating high frequency electrical energy

Country Status (1)

Country Link
GB (1) GB381485A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3470383A (en) * 1966-08-12 1969-09-30 Asea Ab Device for measuring the width of glowing objects by scanning with a photocell
FR2528190A1 (en) * 1982-06-04 1983-12-09 Airelec Ind PROGRAMMABLE CONTROLLER

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3470383A (en) * 1966-08-12 1969-09-30 Asea Ab Device for measuring the width of glowing objects by scanning with a photocell
FR2528190A1 (en) * 1982-06-04 1983-12-09 Airelec Ind PROGRAMMABLE CONTROLLER
GB2121536A (en) * 1982-06-04 1983-12-21 Airelec Ind Programmable controller

Similar Documents

Publication Publication Date Title
GB527886A (en) Scanning ray tube target for a television signal-reproducing system
US3229089A (en) An x-ray system for producing a specimen image in color
GB585357A (en) Improvements in or relating to method of and apparatus for surveying objects with electromagnetic energy
GB1044547A (en) Improvements in or relating to methods of and apparatus for producing printing blocks particularly intaglio printing blocks
US2085437A (en) Optical lens system
GB588293A (en) Improvements in or relating to ultra high frequency electron discharge apparatus
GB541959A (en) Improved electro-optical relay
GB381485A (en) Improvements in or relating to methods of generating high frequency electrical energy
GB526875A (en) Improvements in light modulating devices
US2473825A (en) Television receiver screen
JPS54150140A (en) Recorder
GB381087A (en) Improvements in or relating to methods of generating high frequency electrical energy
SE7413372L (en)
GB1032636A (en) A gas laser for the production of radiation in the visible spectral region
Tomkiewicz et al. Chemically Induced Dynamic Nuclear Polarization in Unmodified NMR Spectrometers
Valnicek The X-emission of expanding flares
GB584916A (en) Improvements in or relating to television receiving apparatus
US2226997A (en) Television transmitter
White A method of continuous observation of the equivalent height of the Kennelly-Heaviside layer
GB740873A (en) Improvements in or relating to circuit arrangements for use in telecinematograph transmitters
Little Developments in large-screen television
US1683136A (en) Charles francis jenkins
US2155033A (en) Picture reproducer
DE459660C (en) Method for transmitting television pictures
SU30723A1 (en) Device for electrical telescopes