GB1390121A - Electrostatically deflectable light valves for projection displays - Google Patents

Electrostatically deflectable light valves for projection displays

Info

Publication number
GB1390121A
GB1390121A GB1205772A GB1205772A GB1390121A GB 1390121 A GB1390121 A GB 1390121A GB 1205772 A GB1205772 A GB 1205772A GB 1205772 A GB1205772 A GB 1205772A GB 1390121 A GB1390121 A GB 1390121A
Authority
GB
United Kingdom
Prior art keywords
array
electrode
electrodes
light
stripes
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
GB1205772A
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.)
CBS Corp
Original Assignee
Westinghouse Electric Corp
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
Application filed by Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of GB1390121A publication Critical patent/GB1390121A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
    • H01J29/10—Screens on or from which an image or pattern is formed, picked up, converted or stored
    • H01J29/12—Screens on or from which an image or pattern is formed, picked up, converted or stored acting as light valves by shutter operation, e.g. for eidophor
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/37—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being movable elements
    • G09F9/372—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being movable elements the positions of the elements being controlled by the application of an electric field
    • 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

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Mechanical Light Control Or Optical Switches (AREA)

Abstract

1390121 Matrix displays WESTINGHOUSE ELECTRIC CORP 15 March 1972 [13 April 1971] 12057/72 Heading G5C [Also in Divisions H1 and H4] An electrostatically deflectable light valve structure comprises an array of spaced apart deformable light reflective elements each supported by a spacer post member extending from a base member which is provided with an electrode near the base of each spacer post. In Fig. 29, a solid state device comprises an array of horizontal electrodes 162 deposited on a glass base, and an array of vertical electrodes 168 supported on silicon pillars 170 located within apertures provided in the horizontal electrodes. Application of voltages to a selected electrode in each array causes deflection of the selected electrode 168 at the crossing point. The device may be used in a Schlieren optical system (Fig. 1, not shown), wherein light is reflected on to the reflective electrodes 168 by a striped mirror and reflected back on to the stripes unless an electrode 168 is deflected, when the light passes through the stripes to a display screen.
GB1205772A 1971-04-13 1972-03-15 Electrostatically deflectable light valves for projection displays Expired GB1390121A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US13360871A 1971-04-13 1971-04-13

Publications (1)

Publication Number Publication Date
GB1390121A true GB1390121A (en) 1975-04-09

Family

ID=22459453

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1205772A Expired GB1390121A (en) 1971-04-13 1972-03-15 Electrostatically deflectable light valves for projection displays

Country Status (5)

Country Link
US (1) US3746911A (en)
JP (1) JPS5134255B1 (en)
DE (1) DE2217256A1 (en)
FR (1) FR2132899B1 (en)
GB (1) GB1390121A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2237443A (en) * 1989-08-03 1991-05-01 Rank Brimar Ltd Light modulating device
GB2239101B (en) * 1989-11-17 1993-09-22 Marconi Gec Ltd Optical device

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US3886310A (en) * 1973-08-22 1975-05-27 Westinghouse Electric Corp Electrostatically deflectable light valve with improved diffraction properties
US3896338A (en) * 1973-11-01 1975-07-22 Westinghouse Electric Corp Color video display system comprising electrostatically deflectable light valves
US3989890A (en) * 1974-02-14 1976-11-02 Westinghouse Electric Corporation Optical imaging system utilizing a light valve array and a coupled photoemissive target
US3912371A (en) * 1974-07-26 1975-10-14 Us Army Integration flash transfer plate
US4010322A (en) * 1975-07-28 1977-03-01 Westinghouse Electric Corporation High resolution low bandwidth portable telecommunication system
US4229081A (en) * 1978-06-26 1980-10-21 The United States Of America As Represented By The Secretary Of The Army Electro-mechanical image converter
US4356730A (en) * 1981-01-08 1982-11-02 International Business Machines Corporation Electrostatically deformographic switches
US4592628A (en) * 1981-07-01 1986-06-03 International Business Machines Mirror array light valve
US4492435A (en) * 1982-07-02 1985-01-08 Xerox Corporation Multiple array full width electro mechanical modulator
US4454547A (en) * 1982-07-02 1984-06-12 Xerox Corporation Raster output scanner having a full width electro-mechanical modulator
US4450458A (en) * 1982-07-02 1984-05-22 Xerox Corporation Multi-function reproduction apparatus
EP0139991A3 (en) * 1983-09-08 1986-06-25 Texas Instruments Incorporated Optical system for projection display using spatial light modulator (1111111)
US4680579A (en) * 1983-09-08 1987-07-14 Texas Instruments Incorporated Optical system for projection display using spatial light modulator device
US4842396A (en) * 1984-06-29 1989-06-27 Canon Kabushiki Kaisha Light modulation element and light modulation apparatus
US4710732A (en) * 1984-07-31 1987-12-01 Texas Instruments Incorporated Spatial light modulator and method
DE3601828A1 (en) * 1985-01-23 1986-07-24 Canon K.K., Tokio/Tokyo OPTICAL LIGHT SCAN SYSTEM OF AN IMAGE OUTPUT SCANNER WITH AN ELECTROMECHANICAL LIGHT MODULATOR
JPS61169812A (en) * 1985-01-23 1986-07-31 Canon Inc Photoscanning optical system
JPS61169813A (en) * 1985-01-23 1986-07-31 Canon Inc Photoscanning optical system
US4793699A (en) * 1985-04-19 1988-12-27 Canon Kabushiki Kaisha Projection apparatus provided with an electro-mechanical transducer element
US4698602A (en) * 1985-10-09 1987-10-06 The United States Of America As Represented By The Secretary Of The Air Force Micromirror spatial light modulator
US5172262A (en) * 1985-10-30 1992-12-15 Texas Instruments Incorporated Spatial light modulator and method
US4716339A (en) * 1986-07-08 1987-12-29 General Electric Company Split drift ring for focus deflection in light valves
US4814866A (en) * 1987-03-04 1989-03-21 Mcdonnell Douglas Corporation Schlieren color television image aperturing device
US4956619A (en) * 1988-02-19 1990-09-11 Texas Instruments Incorporated Spatial light modulator
US4954789A (en) * 1989-09-28 1990-09-04 Texas Instruments Incorporated Spatial light modulator
US5083857A (en) * 1990-06-29 1992-01-28 Texas Instruments Incorporated Multi-level deformable mirror device
US5142405A (en) * 1990-06-29 1992-08-25 Texas Instruments Incorporated Bistable dmd addressing circuit and method
DE69113150T2 (en) * 1990-06-29 1996-04-04 Texas Instruments Inc Deformable mirror device with updated grid.
US5062689A (en) * 1990-08-21 1991-11-05 Koehler Dale R Electrostatically actuatable light modulating device
US5233459A (en) * 1991-03-06 1993-08-03 Massachusetts Institute Of Technology Electric display device
US5488505A (en) * 1992-10-01 1996-01-30 Engle; Craig D. Enhanced electrostatic shutter mosaic modulator
US5640266A (en) * 1992-10-07 1997-06-17 Engle; Craig D. Electronically addressed deformable mirror device
US5581393A (en) * 1993-03-23 1996-12-03 Daewoo Electronics Co., Ltd. Mirror array and method for the manufacture thereof
US5640214A (en) * 1994-09-30 1997-06-17 Texas Instruments Incorporated Printer and display systems with bidirectional light collection structures
EP0707228A1 (en) * 1994-10-13 1996-04-17 GRETAG Aktiengesellschaft Light modulator
CA2153345C (en) * 1994-12-15 2000-01-11 Robert William Filas Low polarization sensitivity gold mirrors on silica
US5612753A (en) * 1995-01-27 1997-03-18 Texas Instruments Incorporated Full-color projection display system using two light modulators
US6046840A (en) 1995-06-19 2000-04-04 Reflectivity, Inc. Double substrate reflective spatial light modulator with self-limiting micro-mechanical elements
US5835256A (en) * 1995-06-19 1998-11-10 Reflectivity, Inc. Reflective spatial light modulator with encapsulated micro-mechanical elements
US5829870A (en) * 1995-12-04 1998-11-03 Ford Global Technologies, Inc. Variable headlamp system for an automotive vehicle using an electrostatic shutter
US5681103A (en) * 1995-12-04 1997-10-28 Ford Global Technologies, Inc. Electrostatic shutter particularly for an automotive headlamp
US6034810A (en) * 1997-04-18 2000-03-07 Memsolutions, Inc. Field emission charge controlled mirror (FEA-CCM)
US5768009A (en) * 1997-04-18 1998-06-16 E-Beam Light valve target comprising electrostatically-repelled micro-mirrors
US6147789A (en) * 1998-05-04 2000-11-14 Gelbart; Daniel High speed deformable mirror light valve
US6529310B1 (en) 1998-09-24 2003-03-04 Reflectivity, Inc. Deflectable spatial light modulator having superimposed hinge and deflectable element
US5991066A (en) * 1998-10-15 1999-11-23 Memsolutions, Inc. Membrane-actuated charge controlled mirror
US6028696A (en) * 1998-10-15 2000-02-22 Memsolutions, Inc. Charge controlled mirror with improved frame time utilization and method of addressing the same
US6038058A (en) * 1998-10-15 2000-03-14 Memsolutions, Inc. Grid-actuated charge controlled mirror and method of addressing the same
US6031657A (en) * 1998-10-15 2000-02-29 Memsolutions, Inc. Membrane-actuated charge controlled mirror (CCM) projection display
US6123985A (en) * 1998-10-28 2000-09-26 Solus Micro Technologies, Inc. Method of fabricating a membrane-actuated charge controlled mirror (CCM)
US6396619B1 (en) 2000-01-28 2002-05-28 Reflectivity, Inc. Deflectable spatial light modulator having stopping mechanisms
US6741383B2 (en) 2000-08-11 2004-05-25 Reflectivity, Inc. Deflectable micromirrors with stopping mechanisms
US6346776B1 (en) 2000-07-10 2002-02-12 Memsolutions, Inc. Field emission array (FEA) addressed deformable light valve modulator
US7099065B2 (en) * 2000-08-03 2006-08-29 Reflectivity, Inc. Micromirrors with OFF-angle electrodes and stops
US6911132B2 (en) 2002-09-24 2005-06-28 Duke University Apparatus for manipulating droplets by electrowetting-based techniques
US7329545B2 (en) * 2002-09-24 2008-02-12 Duke University Methods for sampling a liquid flow
US7405860B2 (en) * 2002-11-26 2008-07-29 Texas Instruments Incorporated Spatial light modulators with light blocking/absorbing areas
SE0300240D0 (en) * 2003-01-31 2003-01-31 Micronic Laser Systems Ab SLM addressing method
US7411717B2 (en) * 2003-02-12 2008-08-12 Texas Instruments Incorporated Micromirror device
US7212359B2 (en) * 2003-07-25 2007-05-01 Texas Instruments Incorporated Color rendering of illumination light in display systems
US7131762B2 (en) * 2003-07-25 2006-11-07 Texas Instruments Incorporated Color rendering of illumination light in display systems
US6943933B2 (en) * 2003-12-21 2005-09-13 Hewlett-Packard Development Company, L.P. MEM devices having charge induced via focused beam to enter different states
US7268933B2 (en) * 2003-12-21 2007-09-11 Hewlett-Packard Development Company, L.P. Discharge of MEM devices having charge induced via focused beam to enter different states
US7787170B2 (en) * 2004-06-15 2010-08-31 Texas Instruments Incorporated Micromirror array assembly with in-array pillars
US7113322B2 (en) * 2004-06-23 2006-09-26 Reflectivity, Inc Micromirror having offset addressing electrode
US7119942B2 (en) * 2004-06-30 2006-10-10 Northrop Gruman Corporation Side spring micro-mirror
US7092143B2 (en) * 2004-10-19 2006-08-15 Reflectivity, Inc Micromirror array device and a method for making the same
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US7295363B2 (en) 2005-04-08 2007-11-13 Texas Instruments Incorporated Optical coating on light transmissive substrates of micromirror devices
US7535619B2 (en) * 2005-04-27 2009-05-19 Hewlett-Packard Development Company, L.P. Discharge of MEM devices having charge induced via focused beam to enter different states
US7460293B2 (en) * 2005-09-30 2008-12-02 Hewlett-Packard Development Company, L.P. Display system
WO2007143623A2 (en) 2006-06-02 2007-12-13 Stalford Harold L Methods and systems for micro machines
WO2008073449A2 (en) * 2006-12-12 2008-06-19 Evans & Sutherland Computer Corporation System and method for aligning rgb light in a single modulator projector
US20080259988A1 (en) * 2007-01-19 2008-10-23 Evans & Sutherland Computer Corporation Optical actuator with improved response time and method of making the same
WO2008144749A1 (en) * 2007-05-21 2008-11-27 Evans & Sutherland Computer Corporation Invisible scanning safety system
US8268246B2 (en) * 2007-08-09 2012-09-18 Advanced Liquid Logic Inc PCB droplet actuator fabrication
WO2009033122A1 (en) * 2007-09-07 2009-03-12 Evans & Sutherland Computer Corporation Device and method for reducing etendue in a diode laser
US20090219491A1 (en) * 2007-10-18 2009-09-03 Evans & Sutherland Computer Corporation Method of combining multiple Gaussian beams for efficient uniform illumination of one-dimensional light modulators
US8358317B2 (en) * 2008-05-23 2013-01-22 Evans & Sutherland Computer Corporation System and method for displaying a planar image on a curved surface
US8702248B1 (en) 2008-06-11 2014-04-22 Evans & Sutherland Computer Corporation Projection method for reducing interpixel gaps on a viewing surface
US8077378B1 (en) 2008-11-12 2011-12-13 Evans & Sutherland Computer Corporation Calibration system and method for light modulation device
US9641826B1 (en) 2011-10-06 2017-05-02 Evans & Sutherland Computer Corporation System and method for displaying distant 3-D stereo on a dome surface
US10230928B2 (en) 2014-10-27 2019-03-12 Texas Instruments Incorporated Color recapture using polarization recovery in a color-field sequential display system

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2681380A (en) * 1951-09-26 1954-06-15 Us Air Force Color television projection system
US2670523A (en) * 1952-02-01 1954-03-02 Richard K Orthuber Method of constructing electrostatic shutter mosaics
US2910532A (en) * 1953-06-15 1959-10-27 Electronique Soc Gen Arrangement for projecting televised images on to a large screen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2237443A (en) * 1989-08-03 1991-05-01 Rank Brimar Ltd Light modulating device
GB2239101B (en) * 1989-11-17 1993-09-22 Marconi Gec Ltd Optical device

Also Published As

Publication number Publication date
FR2132899A1 (en) 1972-11-24
JPS5134255B1 (en) 1976-09-25
US3746911A (en) 1973-07-17
FR2132899B1 (en) 1976-03-12
DE2217256A1 (en) 1972-11-02

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees