BE863989A - Agencement avec une valve a lumiere, en particulier une cellule a cristal liquide - Google Patents
Agencement avec une valve a lumiere, en particulier une cellule a cristal liquideInfo
- Publication number
- BE863989A BE863989A BE185196A BE185196A BE863989A BE 863989 A BE863989 A BE 863989A BE 185196 A BE185196 A BE 185196A BE 185196 A BE185196 A BE 185196A BE 863989 A BE863989 A BE 863989A
- Authority
- BE
- Belgium
- Prior art keywords
- arrangement
- liquid crystal
- crystal cell
- light valve
- valve
- Prior art date
Links
- 210000002858 crystal cell Anatomy 0.000 title 1
- 239000004973 liquid crystal related substance Substances 0.000 title 1
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
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133617—Illumination with ultraviolet light; Luminescent elements or materials associated to the cell
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K2/00—Non-electric light sources using luminescence; Light sources using electrochemiluminescence
-
- 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
- G02F1/13725—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 guest-host interaction
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Optics & Photonics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Liquid Crystal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Electric Clocks (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2706355A DE2706355C2 (de) | 1977-02-15 | 1977-02-15 | Anzeige-Anordnung mit einem Lichtventil, insbesondere einer Flfissigkristallzelle |
Publications (1)
Publication Number | Publication Date |
---|---|
BE863989A true BE863989A (fr) | 1978-05-29 |
Family
ID=6001243
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE185196A BE863989A (fr) | 1977-02-15 | 1978-02-15 | Agencement avec une valve a lumiere, en particulier une cellule a cristal liquide |
Country Status (12)
Country | Link |
---|---|
US (1) | US4240711A (it) |
JP (1) | JPS53101998A (it) |
AT (1) | AT354535B (it) |
BE (1) | BE863989A (it) |
CA (1) | CA1106950A (it) |
CH (1) | CH608644A5 (it) |
DE (1) | DE2706355C2 (it) |
FR (1) | FR2380565A1 (it) |
GB (1) | GB1585753A (it) |
IT (1) | IT1092685B (it) |
NL (1) | NL7801666A (it) |
SE (1) | SE7801775L (it) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2809554A (en) * | 1954-07-16 | 1957-10-15 | Zeiss Carl | Microscope objective with low magnification for epi-microscopes |
DE2706405C3 (de) * | 1977-02-15 | 1985-08-01 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V., 8000 Muenchen | Anzeigeanordnung zur Darstellung von hellen Bildern vor dunklem Hintergrund |
CH633381A5 (de) * | 1978-12-20 | 1982-11-30 | Bbc Brown Boveri & Cie | Elektrooptische anzeige mit reflektor. |
DE2927100A1 (de) * | 1979-07-04 | 1981-01-08 | Siemens Ag | Anordnung zur helligkeitsverstaerkung von passiven anzeigevorrichtungen |
US4518225A (en) * | 1983-04-11 | 1985-05-21 | Rockwell International Corporation | Multicolored liquid crystal displays utilizing photoluminescent transflectors and mask |
US4636807A (en) * | 1986-03-14 | 1987-01-13 | The Mead Corporation | Apparatus and method for light value gray scale recording |
US4641925A (en) * | 1986-03-20 | 1987-02-10 | Motorola, Inc. | Liquid crystal display assembly with phosphorescent backlighting |
US5416575A (en) * | 1991-11-18 | 1995-05-16 | Schwartz; Mark | Method and system for calibrating an optical density measurement apparatus |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3551026A (en) * | 1965-04-26 | 1970-12-29 | Rca Corp | Control of optical properties of materials with liquid crystals |
JPS5140289B1 (it) * | 1971-01-23 | 1976-11-02 | ||
CH1206174A4 (fr) * | 1973-09-07 | 1977-05-31 | Seiko Instr & Electronics | Montre-bracelet électronique |
US4043636A (en) * | 1974-12-23 | 1977-08-23 | Intel Corporation | Illumination-panel for liquid crystal display of similar device |
CH589307A5 (it) * | 1975-06-27 | 1977-06-30 | Bbc Brown Boveri & Cie | |
AT351615B (de) * | 1975-12-03 | 1979-08-10 | Siemens Ag | Anordnung zur passiven helligkeitsverstaerkung von ein- oder mehrfarbigen anzeigevor- richtungen |
-
1977
- 1977-02-15 DE DE2706355A patent/DE2706355C2/de not_active Expired
- 1977-12-07 CH CH1495677A patent/CH608644A5/xx not_active IP Right Cessation
-
1978
- 1978-02-09 FR FR7803645A patent/FR2380565A1/fr active Granted
- 1978-02-10 CA CA296,691A patent/CA1106950A/en not_active Expired
- 1978-02-13 US US05/877,366 patent/US4240711A/en not_active Expired - Lifetime
- 1978-02-13 AT AT100278A patent/AT354535B/de not_active IP Right Cessation
- 1978-02-13 IT IT20210/78A patent/IT1092685B/it active
- 1978-02-14 NL NL7801666A patent/NL7801666A/xx not_active Application Discontinuation
- 1978-02-14 GB GB5774/78A patent/GB1585753A/en not_active Expired
- 1978-02-15 JP JP1638378A patent/JPS53101998A/ja active Pending
- 1978-02-15 BE BE185196A patent/BE863989A/xx not_active IP Right Cessation
- 1978-02-15 SE SE7801775A patent/SE7801775L/xx unknown
Also Published As
Publication number | Publication date |
---|---|
DE2706355C2 (de) | 1979-04-05 |
SE7801775L (sv) | 1978-08-15 |
FR2380565B1 (it) | 1982-11-19 |
DE2706355B1 (de) | 1978-08-10 |
GB1585753A (en) | 1981-03-11 |
IT7820210A0 (it) | 1978-02-13 |
CA1106950A (en) | 1981-08-11 |
FR2380565A1 (fr) | 1978-09-08 |
IT1092685B (it) | 1985-07-12 |
CH608644A5 (it) | 1979-01-15 |
AT354535B (de) | 1979-01-10 |
NL7801666A (nl) | 1978-08-17 |
US4240711A (en) | 1980-12-23 |
JPS53101998A (en) | 1978-09-05 |
ATA100278A (de) | 1979-06-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RE | Patent lapsed |
Owner name: SIEMENS A.G. Effective date: 19840215 |