CH567275A5 - - Google Patents
Info
- Publication number
- CH567275A5 CH567275A5 CH1801573A CH1801573A CH567275A5 CH 567275 A5 CH567275 A5 CH 567275A5 CH 1801573 A CH1801573 A CH 1801573A CH 1801573 A CH1801573 A CH 1801573A CH 567275 A5 CH567275 A5 CH 567275A5
- Authority
- CH
- Switzerland
Links
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
- B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
- B24B9/06—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain
- B24B9/16—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of diamonds; of jewels or the like; Diamond grinders' dops; Dop holders or tongs
- B24B9/166—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of diamonds; of jewels or the like; Diamond grinders' dops; Dop holders or tongs using heat
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- 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
- G02F1/1396—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 liquid crystal being selectively controlled between a twisted state and a non-twisted state, e.g. TN-LC cell
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- 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
- G02F1/13363—Birefringent elements, e.g. for optical compensation
- G02F1/133638—Waveplates, i.e. plates with a retardation value of lambda/n
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- 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
- G02F2203/00—Function characteristic
- G02F2203/02—Function characteristic reflective
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Nonlinear Science (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Mechanical Engineering (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)
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1801573A CH567275A5 (US06294698-20010925-C00026.png) | 1973-12-21 | 1973-12-21 | |
| DE2403301A DE2403301A1 (de) | 1973-12-21 | 1974-01-24 | Vorrichtung zur steuerung des durchgangs von licht |
| AT776574A AT338891B (de) | 1973-12-21 | 1974-09-26 | Vorrichtung zur steuerung des durchgangs von licht |
| US05/523,452 US3972587A (en) | 1973-12-21 | 1974-11-13 | Liquid crystal display |
| JP49138568A JPS5098346A (US06294698-20010925-C00026.png) | 1973-12-21 | 1974-12-04 | |
| FR7441456A FR2255623B3 (US06294698-20010925-C00026.png) | 1973-12-21 | 1974-12-17 | |
| NL7416540A NL7416540A (nl) | 1973-12-21 | 1974-12-18 | Inrichting voor het besturen van de doorgang van licht. |
| GB55071/74A GB1496499A (en) | 1973-12-21 | 1974-12-19 | Device for controlling the passage of light |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1801573A CH567275A5 (US06294698-20010925-C00026.png) | 1973-12-21 | 1973-12-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH567275A5 true CH567275A5 (US06294698-20010925-C00026.png) | 1975-09-30 |
Family
ID=4429786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH1801573A CH567275A5 (US06294698-20010925-C00026.png) | 1973-12-21 | 1973-12-21 |
Country Status (8)
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH582894A5 (US06294698-20010925-C00026.png) * | 1975-03-17 | 1976-12-15 | Bbc Brown Boveri & Cie | |
| US4066335A (en) * | 1976-01-19 | 1978-01-03 | Xerox Corporation | Variable density lens |
| US4523848A (en) * | 1981-10-01 | 1985-06-18 | National Research Development Corporation | Polariscope |
| JPS60156528U (ja) * | 1984-03-28 | 1985-10-18 | 株式会社東海理化電機製作所 | 防眩ミラ− |
| DE3876059D1 (de) * | 1987-09-18 | 1992-12-24 | Hoffmann La Roche | Ferroelektrische fluessigkristallzelle. |
| WO1990000756A1 (en) * | 1988-07-14 | 1990-01-25 | Seiko Epson Corporation | Reflection-type liquid crystal electro-optical device and projection-type display device using the same |
| US5847790A (en) * | 1989-02-16 | 1998-12-08 | S.T. Lagerwall S.A.R.L. | Liquid crystal devices using a linear electro-optic effect |
| EP0470817A3 (en) * | 1990-08-09 | 1992-11-25 | Seiko Epson Corporation | Liquid crystal electro-optical device |
| US5557177A (en) * | 1994-01-18 | 1996-09-17 | Engle; Craig D. | Enhanced electron beam addressed storage target |
| US5933207A (en) * | 1995-10-23 | 1999-08-03 | Hughes Electronics Corporation | Reflective-type liquid crystal displays using mixed-mode twist nematic cells |
| GB2318878A (en) * | 1996-10-31 | 1998-05-06 | Sharp Kk | Reflective liquid crystal device |
| GB2335755A (en) * | 1998-03-26 | 1999-09-29 | Sharp Kk | Liquid crystal device |
| JP2000019323A (ja) * | 1998-06-30 | 2000-01-21 | Nippon Mitsubishi Oil Corp | カラー反射型偏光板 |
| US6788462B2 (en) | 2002-01-03 | 2004-09-07 | Jon R. Lesniak | Achromatic circular polarizer |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3731986A (en) * | 1971-04-22 | 1973-05-08 | Int Liquid Xtal Co | Display devices utilizing liquid crystal light modulation |
| US3784280A (en) * | 1973-01-02 | 1974-01-08 | Gen Electric | Light-dark reflective liquid crystal display |
-
1973
- 1973-12-21 CH CH1801573A patent/CH567275A5/xx not_active IP Right Cessation
-
1974
- 1974-01-24 DE DE2403301A patent/DE2403301A1/de active Pending
- 1974-09-26 AT AT776574A patent/AT338891B/de not_active IP Right Cessation
- 1974-11-13 US US05/523,452 patent/US3972587A/en not_active Expired - Lifetime
- 1974-12-04 JP JP49138568A patent/JPS5098346A/ja active Pending
- 1974-12-17 FR FR7441456A patent/FR2255623B3/fr not_active Expired
- 1974-12-18 NL NL7416540A patent/NL7416540A/xx not_active Application Discontinuation
- 1974-12-19 GB GB55071/74A patent/GB1496499A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5098346A (US06294698-20010925-C00026.png) | 1975-08-05 |
| GB1496499A (en) | 1977-12-30 |
| DE2403301A1 (de) | 1975-07-03 |
| US3972587A (en) | 1976-08-03 |
| AT338891B (de) | 1977-09-26 |
| ATA776574A (de) | 1977-01-15 |
| FR2255623B3 (US06294698-20010925-C00026.png) | 1977-09-16 |
| NL7416540A (nl) | 1975-06-24 |
| FR2255623A1 (US06294698-20010925-C00026.png) | 1975-07-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased |