GB1287767A - Optical relay device particularly for use in television - Google Patents

Optical relay device particularly for use in television

Info

Publication number
GB1287767A
GB1287767A GB61513/69A GB6151369A GB1287767A GB 1287767 A GB1287767 A GB 1287767A GB 61513/69 A GB61513/69 A GB 61513/69A GB 6151369 A GB6151369 A GB 6151369A GB 1287767 A GB1287767 A GB 1287767A
Authority
GB
United Kingdom
Prior art keywords
plate
temperature
dielectric
salt
capacitor
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
GB61513/69A
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries 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
Priority claimed from FR179504A external-priority patent/FR95336E/en
Priority claimed from FR6902611A external-priority patent/FR2031354B2/fr
Application filed by Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1287767A publication Critical patent/GB1287767A/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
    • G02F1/05—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 with ferro-electric properties
    • 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
    • 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
    • G02F1/05—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 with ferro-electric properties
    • G02F1/0525—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 with ferro-electric properties 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)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)

Abstract

1287767 Television display systems PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 17 Dec 1969 [20 Dec 1968 (2) 5 Feb 1969] 61513/69 Heading H4F In the system described in Specification 1,160,923, the temperature of a plate composed of a deuterium enriched acid salt exhibiting the Pockels effect is stabilized near to its Curie temperature, i.e. below which it becomes ferroelectric, using as a temperature sensor a capacitor having a dielectric if the same material as the plate. However the optimum operating temperature is also the temperature at which the dielectric constant of the salt is a maximum, giving low sensitivity to temperature charge, and it is now proposed to use a capacitor which has a dielectric the Curie temperature of which varies from that of the plate by, e.g. 5-20‹ C. Thus the plate may be formed of a salt 80-100% substituted with deuterium and the dielectric of the capacitor may be the same salt with 5-20% less deuterium. Modification of the embodiments described in Specification 1,160,923 include: (a) the use of a lens shaped fluoride plate (66) to replace a condenser lens, Fig. 9 (not shown); (b) the use of a double "Glazebrook" prism and a quarter or half wave plate with associated plane and curved mirrors to use all, instead of only half, of the incident light, Figs. 10-12 (not shown). Fig. 13 (not shown) illustrates the use of two slightly inclined, spaced mirrors, to avoid production of shadows by the light source.
GB61513/69A 1968-12-20 1969-12-17 Optical relay device particularly for use in television Expired GB1287767A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR179504A FR95336E (en) 1966-01-26 1968-12-20 Optical relay, in particular for television projectors.
FR179505 1968-12-20
FR6902611A FR2031354B2 (en) 1969-02-05 1969-02-05

Publications (1)

Publication Number Publication Date
GB1287767A true GB1287767A (en) 1972-09-06

Family

ID=27244923

Family Applications (1)

Application Number Title Priority Date Filing Date
GB61513/69A Expired GB1287767A (en) 1968-12-20 1969-12-17 Optical relay device particularly for use in television

Country Status (6)

Country Link
US (1) US3637931A (en)
CA (1) CA918278A (en)
DE (1) DE1963509A1 (en)
GB (1) GB1287767A (en)
NL (1) NL6918813A (en)
SE (1) SE364422B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9355747B2 (en) 2008-12-25 2016-05-31 Thorium Power, Inc. Light-water reactor fuel assembly (alternatives), a light-water reactor, and a fuel element of fuel assembly
US10037823B2 (en) 2010-05-11 2018-07-31 Thorium Power, Inc. Fuel assembly
US10170207B2 (en) 2013-05-10 2019-01-01 Thorium Power, Inc. Fuel assembly
US11195629B2 (en) 2010-05-11 2021-12-07 Thorium Power, Inc. Fuel assembly

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2103542A1 (en) * 1970-01-26 1971-08-12 Thomson Csf Force measuring device
FR2139606B1 (en) * 1971-03-31 1975-01-17 Labo Electronique Physique
US3783184A (en) * 1972-03-08 1974-01-01 Hughes Aircraft Co Electronically switched field sequential color television
US4741602A (en) * 1985-08-20 1988-05-03 Hamamatsu Photonics Kabushiki Kaisha Spatial light modulator
FR2595495B1 (en) * 1986-03-04 1988-05-06 Labo Electronique Physique OPTICAL RELAY PROVIDING A PROJECTED IMAGE HAVING CHARACTERS WITH INCREASED READABILITY
FR2595496B1 (en) * 1986-03-04 1988-05-06 Labo Electronique Physique OPTICAL RELAY OPERATING IN CHARGE ACCUMULATION MODE
US4894724A (en) * 1987-12-23 1990-01-16 Hughes Aircraft Company System and method for producing a flicker-free video image
US5281887A (en) * 1992-06-15 1994-01-25 Engle Craig D Two independent spatial variable degree of freedom wavefront modulator
US5623361A (en) * 1995-01-09 1997-04-22 Engle; Craig D. Enhanced wavefront phase modulator device
AU5156198A (en) * 1996-10-29 1998-05-22 Xeotron Corporation Optical device utilizing optical waveguides and mechanical light-switches

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2411155A (en) * 1944-09-14 1946-11-19 Raytheon Mfg Co Television receiving system
US2983824A (en) * 1955-05-06 1961-05-09 Ibm Electro-optical point shutter
US3015693A (en) * 1958-10-29 1962-01-02 Gen Dynamics Corp Optical projection of a cathode ray tube image
US3396305A (en) * 1965-05-04 1968-08-06 North American Rockwell Image projection device
FR1479284A (en) * 1966-01-26 1967-05-05 Electronique & Physique Optical relay, especially for television projectors

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9355747B2 (en) 2008-12-25 2016-05-31 Thorium Power, Inc. Light-water reactor fuel assembly (alternatives), a light-water reactor, and a fuel element of fuel assembly
US10037823B2 (en) 2010-05-11 2018-07-31 Thorium Power, Inc. Fuel assembly
US10991473B2 (en) 2010-05-11 2021-04-27 Thorium Power, Inc. Method of manufacturing a nuclear fuel assembly
US11195629B2 (en) 2010-05-11 2021-12-07 Thorium Power, Inc. Fuel assembly
US11837371B2 (en) 2010-05-11 2023-12-05 Thorium Power, Inc. Method of manufacturing a nuclear fuel assembly
US11862353B2 (en) 2010-05-11 2024-01-02 Thorium Power, Inc. Fuel assembly
US10170207B2 (en) 2013-05-10 2019-01-01 Thorium Power, Inc. Fuel assembly
US11211174B2 (en) 2013-05-10 2021-12-28 Thorium Power, Inc. Fuel assembly

Also Published As

Publication number Publication date
SE364422B (en) 1974-02-18
DE1963509A1 (en) 1970-09-03
NL6918813A (en) 1970-06-23
CA918278A (en) 1973-01-02
US3637931A (en) 1972-01-25

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee