GB1287767A - Optical relay device particularly for use in television - Google Patents
Optical relay device particularly for use in televisionInfo
- 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
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.
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)
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)
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 |
FR2595496B1 (en) * | 1986-03-04 | 1988-05-06 | Labo Electronique Physique | OPTICAL RELAY OPERATING IN CHARGE ACCUMULATION MODE |
FR2595495B1 (en) * | 1986-03-04 | 1988-05-06 | Labo Electronique Physique | OPTICAL RELAY PROVIDING A PROJECTED IMAGE HAVING CHARACTERS WITH INCREASED READABILITY |
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)
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 |
-
1969
- 1969-12-02 US US881463A patent/US3637931A/en not_active Expired - Lifetime
- 1969-12-16 NL NL6918813A patent/NL6918813A/xx unknown
- 1969-12-17 SE SE17430/69A patent/SE364422B/xx unknown
- 1969-12-17 GB GB61513/69A patent/GB1287767A/en not_active Expired
- 1969-12-18 DE DE19691963509 patent/DE1963509A1/en active Pending
- 1969-12-18 CA CA070247A patent/CA918278A/en not_active Expired
Cited By (8)
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 |
---|---|
CA918278A (en) | 1973-01-02 |
US3637931A (en) | 1972-01-25 |
NL6918813A (en) | 1970-06-23 |
SE364422B (en) | 1974-02-18 |
DE1963509A1 (en) | 1970-09-03 |
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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 |