IL54915A - C.r.t.with electrooptic screen for increasing image contrast - Google Patents
C.r.t.with electrooptic screen for increasing image contrastInfo
- Publication number
- IL54915A IL54915A IL54915A IL5491578A IL54915A IL 54915 A IL54915 A IL 54915A IL 54915 A IL54915 A IL 54915A IL 5491578 A IL5491578 A IL 5491578A IL 54915 A IL54915 A IL 54915A
- Authority
- IL
- Israel
- Prior art keywords
- electrooptic
- screen
- image contrast
- increasing image
- increasing
- Prior art date
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
- G02F1/13—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 liquid crystals, e.g. single liquid crystal display cells
- G02F1/137—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 liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
- G02F1/139—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 liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent
- G02F1/1393—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 liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent the birefringence of the liquid crystal being electrically controlled, e.g. ECB-, DAP-, HAN-, PI-LC cells
-
- 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
- G02F1/13—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 liquid crystals, e.g. single liquid crystal display cells
- G02F1/1313—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 liquid crystals, e.g. single liquid crystal display cells specially adapted for a particular application
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/86—Vessels; Containers; Vacuum locks
- H01J29/89—Optical or photographic arrangements structurally combined or co-operating with the vessel
- H01J29/896—Anti-reflection means, e.g. eliminating glare due to ambient light
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2229/00—Details of cathode ray tubes or electron beam tubes
- H01J2229/89—Optical components associated with the vessel
- H01J2229/8926—Active components, e.g. LCD's, indicators, illuminators and moving devices
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Liquid Crystal Display Device Control (AREA)
- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
- Transforming Electric Information Into Light Information (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2509077 | 1977-06-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
IL54915A true IL54915A (en) | 1980-10-26 |
Family
ID=10222047
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IL54915A IL54915A (en) | 1977-06-15 | 1978-06-15 | C.r.t.with electrooptic screen for increasing image contrast |
Country Status (8)
Country | Link |
---|---|
US (1) | US4231068A (xx) |
EP (1) | EP0000422B1 (xx) |
JP (1) | JPS5433698A (xx) |
BR (1) | BR7803797A (xx) |
CA (1) | CA1105544A (xx) |
DE (1) | DE2860638D1 (xx) |
IL (1) | IL54915A (xx) |
MX (1) | MX144543A (xx) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4412255A (en) * | 1981-02-23 | 1983-10-25 | Optical Coating Laboratory, Inc. | Transparent electromagnetic shield and method of manufacturing |
GB2133935A (en) * | 1982-12-17 | 1984-08-01 | Payne John M | Dissipating electrical charge from the screen of a visual display unit |
FR2562363B1 (fr) * | 1984-03-30 | 1988-01-15 | Thomson Csf | Dispositif de prise de vues en infrarouge |
FR2568393B1 (fr) * | 1984-07-26 | 1986-11-14 | Commissariat Energie Atomique | Cellule a cristal liquide nematique faiblement dope par un solute chiral, et du type a birefringence controlee electriquement |
EP0182639A3 (en) * | 1984-11-19 | 1988-05-11 | Tektronix, Inc. | Optical filter having variable transmission characteristics |
US5075789A (en) * | 1990-04-05 | 1991-12-24 | Raychem Corporation | Displays having improved contrast |
US7071907B1 (en) * | 1999-05-07 | 2006-07-04 | Candescent Technologies Corporation | Display with active contrast enhancement |
CN1179231C (zh) * | 1999-12-24 | 2004-12-08 | 皇家菲利浦电子有限公司 | 包括扫描窗口的显示装置 |
GB0025795D0 (en) * | 2000-10-20 | 2000-12-06 | Seos Displays Ltd | Image display apparatus for displaying moving images |
US7075593B2 (en) * | 2003-03-26 | 2006-07-11 | Video Display Corporation | Electron-beam-addressed active-matrix spatial light modulator |
US7647881B2 (en) * | 2007-05-09 | 2010-01-19 | Visteon Global Technologies | Dimensional enhancement lens |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2819459A (en) * | 1954-05-06 | 1958-01-07 | Roy F Dodd | Open-face non-glare type viewing hood |
US3015693A (en) * | 1958-10-29 | 1962-01-02 | Gen Dynamics Corp | Optical projection of a cathode ray tube image |
US3185020A (en) * | 1961-09-07 | 1965-05-25 | Optical Coating Laboratory Inc | Three layer anti-reflection coating |
IT946051B (it) * | 1970-12-04 | 1973-05-21 | Hoffmann La Roche | Cellula ottica |
US3783184A (en) * | 1972-03-08 | 1974-01-01 | Hughes Aircraft Co | Electronically switched field sequential color television |
FR2180448B2 (xx) * | 1972-04-17 | 1974-12-20 | Thomson Csf | |
JPS4946954A (xx) * | 1972-09-11 | 1974-05-07 | ||
NL7300452A (xx) * | 1973-01-12 | 1974-07-16 | ||
FR2251023A1 (en) * | 1973-11-09 | 1975-06-06 | Thomson Csf | Contrast compensation system for optical display - uses liquid crystal enabling operation in high ambient light levels |
DE2452392A1 (de) * | 1974-11-05 | 1976-05-06 | Licentia Gmbh | Farbbildwiedergabevorrichtung |
-
1978
- 1978-06-12 US US05/914,771 patent/US4231068A/en not_active Expired - Lifetime
- 1978-06-14 JP JP7201078A patent/JPS5433698A/ja active Granted
- 1978-06-14 BR BR7803797A patent/BR7803797A/pt unknown
- 1978-06-15 IL IL54915A patent/IL54915A/xx unknown
- 1978-06-15 MX MX173809A patent/MX144543A/es unknown
- 1978-06-15 EP EP78300047A patent/EP0000422B1/en not_active Expired
- 1978-06-15 DE DE7878300047T patent/DE2860638D1/de not_active Expired
- 1978-06-15 CA CA305,563A patent/CA1105544A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS6126669B2 (xx) | 1986-06-21 |
JPS5433698A (en) | 1979-03-12 |
CA1105544A (en) | 1981-07-21 |
EP0000422B1 (en) | 1981-04-29 |
DE2860638D1 (en) | 1981-08-06 |
MX144543A (es) | 1981-10-23 |
EP0000422A1 (en) | 1979-01-24 |
BR7803797A (pt) | 1979-04-10 |
US4231068A (en) | 1980-10-28 |
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