GB442381A - Apparatus for influencing a beam of light by electrical means - Google Patents

Apparatus for influencing a beam of light by electrical means

Info

Publication number
GB442381A
GB442381A GB27643/34A GB2764334A GB442381A GB 442381 A GB442381 A GB 442381A GB 27643/34 A GB27643/34 A GB 27643/34A GB 2764334 A GB2764334 A GB 2764334A GB 442381 A GB442381 A GB 442381A
Authority
GB
United Kingdom
Prior art keywords
frequency
light
investigated
stroboscopic
screens
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
GB27643/34A
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.)
KARL PULVARI PULVERMACHER
Original Assignee
KARL PULVARI PULVERMACHER
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 KARL PULVARI PULVERMACHER filed Critical KARL PULVARI PULVERMACHER
Publication of GB442381A publication Critical patent/GB442381A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/03—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on ceramics or electro-optical crystals, e.g. exhibiting Pockels effect or Kerr effect
    • G02F1/0333—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on ceramics or electro-optical crystals, e.g. exhibiting Pockels effect or Kerr effect addressed by a beam of charged particles
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/74—Projection arrangements for image reproduction, e.g. using eidophor
    • H04N5/7416—Projection arrangements for image reproduction, e.g. using eidophor involving the use of a spatial light modulator, e.g. a light valve, controlled by a video signal
    • H04N5/7425—Projection arrangements for image reproduction, e.g. using eidophor involving the use of a spatial light modulator, e.g. a light valve, controlled by a video signal the modulator being a dielectric deformable layer controlled by an electron beam, e.g. eidophor projector

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Nonlinear Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Liquid Crystal (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

442,381. Frequency measurements. PULVERMACHER, K. PULVARI-, 2, Pßrisi-utca, Budapest. Sept. 26, 1934, No. 27643. Convention date, Nov. 30, 1933. [Class 37] [See also Group XL] Apparatus adapted for use in the stroboscopic investigation of high frequency phenomena comprises an envelope 5 in which are mounted a cathode 31, a Wehnelt cylinder 2, an anode 3, two pairs of deflecting plates 15 and a pair of screens each consisting of a layer 27, 28 of a group of crystalline or amorphous particles of a medium capable of rotating the plane of polarization of light under the action of an electric field mounted on a carrier 29, 30 serving as a coating. Light from a source 20 passes through crossed Nicol prisms (not shown) arranged one on each side of the screens. The electron beam from the source 31 acts solely on the screen 27 and the frequency to be investigated is applied to a grid (not shown) located between the cathode 31 and anode 3. The stroboscopic frequency is applied to the coatings 29, 30 and acts with a polarity opposite to that of the frequency to be investigated. In practice, the stroboscopic frequency is varied until no light is transmitted so that there is thereby obtained an indication or measure of the frequency of the vibration to be investigated. The Specification as open to inspection under Sect. 91 comprises also an arrangement having three electro-optically active layers with interposed carriers serving as coatings, the two outer active layers each being irradiated by an electron beam. This subject-matter does not appear in the Specification as accepted.
GB27643/34A 1933-11-30 1934-09-26 Apparatus for influencing a beam of light by electrical means Expired GB442381A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE442381X 1933-11-30

Publications (1)

Publication Number Publication Date
GB442381A true GB442381A (en) 1936-02-07

Family

ID=6522464

Family Applications (2)

Application Number Title Priority Date Filing Date
GB27643/34A Expired GB442381A (en) 1933-11-30 1934-09-26 Apparatus for influencing a beam of light by electrical means
GB28097/34A Expired GB445106A (en) 1933-11-30 1934-10-01 Apparatus for influencing a beam of light by electrical means

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB28097/34A Expired GB445106A (en) 1933-11-30 1934-10-01 Apparatus for influencing a beam of light by electrical means

Country Status (2)

Country Link
FR (1) FR781199A (en)
GB (2) GB442381A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3015693A (en) * 1958-10-29 1962-01-02 Gen Dynamics Corp Optical projection of a cathode ray tube image

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB466031A (en) * 1935-11-20 1937-05-20 Marconi Wireless Telegraph Co Improvements in or relating to electrically controlled light valves
DE741765C (en) * 1937-01-20 1943-11-17 Fernseh Gmbh Projection method
DE746543C (en) * 1937-07-27 1944-08-08 Fernseh Gmbh TV projection device with cathode ray tube

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3015693A (en) * 1958-10-29 1962-01-02 Gen Dynamics Corp Optical projection of a cathode ray tube image

Also Published As

Publication number Publication date
FR781199A (en) 1935-05-10
GB445106A (en) 1936-04-01

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