USRE32521F1 - Light modulator demodulator and method of communication employing the same - Google Patents

Light modulator demodulator and method of communication employing the same Download PDF

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Publication number
USRE32521F1
USRE32521F1 US71084685A USRE32521F1 US RE32521 F1 USRE32521 F1 US RE32521F1 US 71084685 A US71084685 A US 71084685A US RE32521 F1 USRE32521 F1 US RE32521F1
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United States
Prior art keywords
same
light modulator
communication employing
modulator demodulator
demodulator
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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 - Lifetime
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James L Fergason
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OSD Envizion Inc
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James L Fergason
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Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=27398674&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=USRE32521(F1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from US06/235,006 external-priority patent/US4436376A/en
Application filed by James L Fergason filed Critical James L Fergason
Priority to US06710846 priority Critical patent/USRE32521F1/en
Application granted granted Critical
Publication of USRE32521E publication Critical patent/USRE32521E/en
Publication of USRE32521F1 publication Critical patent/USRE32521F1/en
Assigned to HELLER FINANCIAL, INC. reassignment HELLER FINANCIAL, INC. SUPPLEMENTAL PATENT SECURITY AGREEMENT Assignors: JACKSON PRODUCTS, INC.
Assigned to HELLER FINANCIAL, INC. reassignment HELLER FINANCIAL, INC. FIRST AMENDMENT TO PATENT SECURITY AGREEMENT Assignors: JACKSON PRODUCTS, INC.
Assigned to OSD ENVIZION, INC., A CORP. OF DE reassignment OSD ENVIZION, INC., A CORP. OF DE MERGER (SEE DOCUMENT FOR DETAILS). Assignors: OSD ENVIZION, INC., A CALIFORNIA CORPORATION
Assigned to OSD ENVIZION, INC., A CALIFORNIA CORPORATION reassignment OSD ENVIZION, INC., A CALIFORNIA CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: OSD ENVIZION COMPANY, A CALIFORNIA PARTNERSHIP
Assigned to HELLER FINANCIAL, INC., A DE CORP. reassignment HELLER FINANCIAL, INC., A DE CORP. SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: OSD ENVIZION, INC., A DE CORP.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
    • 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
    • G02F2/00—Demodulating light; Transferring the modulation of modulated light; Frequency-changing of light
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/25—Arrangements specific to fibre transmission
    • H04B10/2589—Bidirectional transmission
    • H04B10/25891—Transmission components
    • 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
    • G02F1/133634—Birefringent elements, e.g. for optical compensation the refractive index Nz perpendicular to the element surface being different from in-plane refractive indices Nx and Ny, e.g. biaxial or with normal optical axis
US06710846 1978-06-08 1985-03-12 Light modulator demodulator and method of communication employing the same Expired - Lifetime USRE32521F1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US06710846 USRE32521F1 (en) 1978-06-08 1985-03-12 Light modulator demodulator and method of communication employing the same

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US91361878A 1978-06-08 1978-06-08
US06/235,006 US4436376A (en) 1980-02-13 1981-02-17 Light modulator, demodulator and method of communication employing the same
US06710846 USRE32521F1 (en) 1978-06-08 1985-03-12 Light modulator demodulator and method of communication employing the same

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
US06/121,071 Continuation-In-Part US4385806A (en) 1978-06-08 1980-02-13 Liquid crystal display with improved angle of view and response times
US06/235,006 Reissue US4436376A (en) 1978-06-08 1981-02-17 Light modulator, demodulator and method of communication employing the same

Publications (2)

Publication Number Publication Date
USRE32521E USRE32521E (en) 1987-10-13
USRE32521F1 true USRE32521F1 (en) 1990-09-18

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Family Applications (1)

Application Number Title Priority Date Filing Date
US06710846 Expired - Lifetime USRE32521F1 (en) 1978-06-08 1985-03-12 Light modulator demodulator and method of communication employing the same

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US (1) USRE32521F1 (en)

Cited By (70)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4988167A (en) * 1988-08-10 1991-01-29 Fergason James L Light blocking and vision restoration apparatus with glint control
WO1991002281A1 (en) * 1988-08-10 1991-02-21 Fergason James L Modulated retroreflector system
US5074647A (en) * 1989-12-07 1991-12-24 Optical Shields, Inc. Liquid crystal lens assembly for eye protection
US5113271A (en) * 1988-08-10 1992-05-12 Fergason James L Light blocking and vision restoration apparatus with glint control
US5179459A (en) * 1991-06-28 1993-01-12 Compag Computer Corporation Methods for adhering multiple stack liquid crystal display panels
US5208688A (en) * 1991-02-08 1993-05-04 Osd Envizion Company Eye protection device for welding helmets
US5248880A (en) * 1991-03-25 1993-09-28 Osd Envizion Company Detector system for detecting the occurrence of welding
US5252817A (en) * 1991-03-25 1993-10-12 Osd Envizion Company Detector system for detecting the occurrence of welding using detector feedback
US5347382A (en) * 1992-04-23 1994-09-13 Rumbaugh Scott H Liquid crystal cell retarder with driving beyond retardance value and two cells for high speed
US5347383A (en) * 1989-06-12 1994-09-13 Osd Envizion Company High speed, low power driving circuit for liquid crystal shutter
US5412500A (en) * 1988-08-10 1995-05-02 Fergason; James L. System for continuously rotating plane of polarized light and apparatus using the same
US5414546A (en) * 1988-08-10 1995-05-09 Fergason; James L. Dynamic optical notch filter
US5442468A (en) * 1993-06-21 1995-08-15 Arshach-Applied Science Cars Ltd. Apparatus for producing color effects
US5504600A (en) * 1992-01-10 1996-04-02 Kent State University Method of making a ferroelectric liquid crystal cell including a cooling step
US5515186A (en) * 1991-12-26 1996-05-07 Osd Envizion Company Eye protection device for welding helmets which reduces obliquely incident light
US5519524A (en) * 1994-07-05 1996-05-21 Fergason; James L. Active matrix liquid crystal having a counterelectrode substrate extended and connected to an external circuit
US5519522A (en) * 1993-08-11 1996-05-21 Fergason; Jeffrey K. Eye protection device for welding helmets and the like with hot mirror and indium tin oxide layer
US5532854A (en) * 1994-01-25 1996-07-02 Fergason; James L. Folded variable birefringerence zeroth order hybrid aligned liquid crystal apparatus
US5537256A (en) * 1994-10-25 1996-07-16 Fergason; James L. Electronic dithering system using birefrigence for optical displays and method
US5541745A (en) * 1994-01-25 1996-07-30 Fergason; James L. Illumination system for a display using cholesteric liquid crystal reflectors
US5572341A (en) * 1994-10-25 1996-11-05 Fergason; James L. Electro-optical dithering system using birefringence for optical displays and method
US5579138A (en) * 1993-04-01 1996-11-26 Matsushita Electric Industrial Co., Ltd. Polarizer having a glass substrate with films on either side with different wavelength characteristics and projection display using same
US5585847A (en) * 1992-12-23 1996-12-17 Loral Fairchild Corporation Electronic color imaging technique and structure using a very high resolution monochrome full-frame CCD imager
US5606458A (en) * 1994-08-24 1997-02-25 Fergason; James L. Head mounted display and viewing system using a remote retro-reflector and method of displaying and viewing an image
US5715029A (en) * 1994-10-25 1998-02-03 Fergason; James L. Optical dithering system using birefringence for optical displays and method
US5717422A (en) * 1994-01-25 1998-02-10 Fergason; James L. Variable intensity high contrast passive display
US5737098A (en) * 1992-12-23 1998-04-07 Loral Fairchild Corporation Electronic color snapshot technique and structure using very high resolution monochrome full frame CCD imagers
US5777706A (en) * 1996-05-17 1998-07-07 Motorola, Inc. Nematic liquid crystal phase spatial light modulator for enhanced display resolution
US5808589A (en) * 1994-08-24 1998-09-15 Fergason; James L. Optical system for a head mounted display combining high and low resolution images
US6184969B1 (en) 1994-10-25 2001-02-06 James L. Fergason Optical display system and method, active and passive dithering using birefringence, color image superpositioning and display enhancement
US6243055B1 (en) 1994-10-25 2001-06-05 James L. Fergason Optical display system and method with optical shifting of pixel position including conversion of pixel layout to form delta to stripe pattern by time base multiplexing
US6252639B1 (en) * 1997-08-25 2001-06-26 Harris Corporation Vibration and shock resistant liquid crystal display and associated methods
US6379009B1 (en) 1996-04-24 2002-04-30 James L. Fergason Conjugate optics projection display with image enhancement
US20020125741A1 (en) * 1998-06-18 2002-09-12 Alusuisse Technology & Management Ag Roof unit and basic structure of a road-bound vehicle
US6815652B1 (en) 2000-09-11 2004-11-09 Jackson Products, Inc. Low power phototransistor-based welding helmet providing reduced sensitivity to low intensity light and sharp phototransistor response to high intensity light
US20050002083A1 (en) * 2003-07-02 2005-01-06 Fergason John D. Indicator layout on an auto-darkening lens for use in welding
US6841772B1 (en) 2001-05-05 2005-01-11 Jackson Products, Inc. Eye-protection device having dual high voltage switching
US20050007504A1 (en) * 2003-07-08 2005-01-13 Fergason John D. Light detecting and angle of view compensation for optical devices and method
US20050057544A1 (en) * 2003-08-11 2005-03-17 Hamilton Thomas J. Eye-protection device having dual high voltage switching
US6881939B1 (en) 2001-05-05 2005-04-19 Jackson Products, Inc. Microprocessor based automatically dimmable eye protection device
US20050088401A1 (en) * 2001-11-09 2005-04-28 Daly Scott J. Liquid crystal display backlight with level change
US7002555B1 (en) * 1998-12-04 2006-02-21 Bayer Innovation Gmbh Display comprising touch panel
US20060203148A1 (en) * 2005-03-09 2006-09-14 Magnusson Kristina M Automatic darkening filter with offset polarizers
US20060285330A1 (en) * 2005-06-20 2006-12-21 Ingvar Sundell Automatic darkening filter with automatic power management
US7161135B2 (en) 2003-07-03 2007-01-09 Lightswitch Safety Systems, Inc. Multi-stage sensor for an auto-darkening lens for use in welding and method
US7164284B2 (en) 2003-12-18 2007-01-16 Sharp Laboratories Of America, Inc. Dynamic gamma for a liquid crystal display
US20070081250A1 (en) * 2005-10-11 2007-04-12 Bengt Garbergs Control of an automatic darkening filter
US7342592B2 (en) 2004-06-14 2008-03-11 Sharp Laboratories Of America, Inc. System for reducing crosstalk
US7342210B2 (en) 2003-07-23 2008-03-11 Lightswitch Safety Systems, Inc. Remote control for auto-darkening lens systems and method
US7505018B2 (en) 2004-05-04 2009-03-17 Sharp Laboratories Of America, Inc. Liquid crystal display with reduced black level insertion
US7525528B2 (en) 2004-11-16 2009-04-28 Sharp Laboratories Of America, Inc. Technique that preserves specular highlights
US7532192B2 (en) 2004-05-04 2009-05-12 Sharp Laboratories Of America, Inc. Liquid crystal display with filtered black point
US7550698B2 (en) 2003-07-10 2009-06-23 Lightswitch Safety Systems, Inc. Light sensor arrangement for auto-darkening lenses and method
US7556836B2 (en) 2004-09-03 2009-07-07 Solae, Llc High protein snack product
US7612757B2 (en) 2004-05-04 2009-11-03 Sharp Laboratories Of America, Inc. Liquid crystal display with modulated black point
US7623105B2 (en) 2003-11-21 2009-11-24 Sharp Laboratories Of America, Inc. Liquid crystal display with adaptive color
US7777714B2 (en) 2004-05-04 2010-08-17 Sharp Laboratories Of America, Inc. Liquid crystal display with adaptive width
US7853094B2 (en) 2006-01-24 2010-12-14 Sharp Laboratories Of America, Inc. Color enhancement technique using skin color detection
US7872631B2 (en) 2004-05-04 2011-01-18 Sharp Laboratories Of America, Inc. Liquid crystal display with temporal black point
US7898519B2 (en) 2005-02-17 2011-03-01 Sharp Laboratories Of America, Inc. Method for overdriving a backlit display
US20110166503A1 (en) * 2010-01-07 2011-07-07 Medtronic Xomed, Inc. System and method of bone processing
US8050511B2 (en) 2004-11-16 2011-11-01 Sharp Laboratories Of America, Inc. High dynamic range images from low dynamic range images
US8050512B2 (en) 2004-11-16 2011-11-01 Sharp Laboratories Of America, Inc. High dynamic range images from low dynamic range images
US8121401B2 (en) 2006-01-24 2012-02-21 Sharp Labortories of America, Inc. Method for reducing enhancement of artifacts and noise in image color enhancement
US8243004B2 (en) 2003-03-10 2012-08-14 Fergason Patent Properties, Llc Apparatus and method for preparing, storing, transmitting and displaying images
US8395577B2 (en) 2004-05-04 2013-03-12 Sharp Laboratories Of America, Inc. Liquid crystal display with illumination control
US8941580B2 (en) 2006-11-30 2015-01-27 Sharp Laboratories Of America, Inc. Liquid crystal display with area adaptive backlight
US9956118B2 (en) 2014-09-15 2018-05-01 3M Innovative Properties Company Personal protective system tool communication adapter
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US11616574B2 (en) 2020-03-26 2023-03-28 California Institute Of Technology Optical ground terminal

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Cited By (121)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4988167A (en) * 1988-08-10 1991-01-29 Fergason James L Light blocking and vision restoration apparatus with glint control
WO1991002281A1 (en) * 1988-08-10 1991-02-21 Fergason James L Modulated retroreflector system
US5113271A (en) * 1988-08-10 1992-05-12 Fergason James L Light blocking and vision restoration apparatus with glint control
US5412500A (en) * 1988-08-10 1995-05-02 Fergason; James L. System for continuously rotating plane of polarized light and apparatus using the same
US5414546A (en) * 1988-08-10 1995-05-09 Fergason; James L. Dynamic optical notch filter
US5347383A (en) * 1989-06-12 1994-09-13 Osd Envizion Company High speed, low power driving circuit for liquid crystal shutter
US5074647A (en) * 1989-12-07 1991-12-24 Optical Shields, Inc. Liquid crystal lens assembly for eye protection
US5208688A (en) * 1991-02-08 1993-05-04 Osd Envizion Company Eye protection device for welding helmets
US5248880A (en) * 1991-03-25 1993-09-28 Osd Envizion Company Detector system for detecting the occurrence of welding
US5252817A (en) * 1991-03-25 1993-10-12 Osd Envizion Company Detector system for detecting the occurrence of welding using detector feedback
US5179459A (en) * 1991-06-28 1993-01-12 Compag Computer Corporation Methods for adhering multiple stack liquid crystal display panels
US5515186A (en) * 1991-12-26 1996-05-07 Osd Envizion Company Eye protection device for welding helmets which reduces obliquely incident light
US5504600A (en) * 1992-01-10 1996-04-02 Kent State University Method of making a ferroelectric liquid crystal cell including a cooling step
US5347382A (en) * 1992-04-23 1994-09-13 Rumbaugh Scott H Liquid crystal cell retarder with driving beyond retardance value and two cells for high speed
US5737098A (en) * 1992-12-23 1998-04-07 Loral Fairchild Corporation Electronic color snapshot technique and structure using very high resolution monochrome full frame CCD imagers
US5585847A (en) * 1992-12-23 1996-12-17 Loral Fairchild Corporation Electronic color imaging technique and structure using a very high resolution monochrome full-frame CCD imager
US5579138A (en) * 1993-04-01 1996-11-26 Matsushita Electric Industrial Co., Ltd. Polarizer having a glass substrate with films on either side with different wavelength characteristics and projection display using same
US5442468A (en) * 1993-06-21 1995-08-15 Arshach-Applied Science Cars Ltd. Apparatus for producing color effects
US5519522A (en) * 1993-08-11 1996-05-21 Fergason; Jeffrey K. Eye protection device for welding helmets and the like with hot mirror and indium tin oxide layer
US5541745A (en) * 1994-01-25 1996-07-30 Fergason; James L. Illumination system for a display using cholesteric liquid crystal reflectors
US5717422A (en) * 1994-01-25 1998-02-10 Fergason; James L. Variable intensity high contrast passive display
US5532854A (en) * 1994-01-25 1996-07-02 Fergason; James L. Folded variable birefringerence zeroth order hybrid aligned liquid crystal apparatus
US5519524A (en) * 1994-07-05 1996-05-21 Fergason; James L. Active matrix liquid crystal having a counterelectrode substrate extended and connected to an external circuit
US5808589A (en) * 1994-08-24 1998-09-15 Fergason; James L. Optical system for a head mounted display combining high and low resolution images
US5606458A (en) * 1994-08-24 1997-02-25 Fergason; James L. Head mounted display and viewing system using a remote retro-reflector and method of displaying and viewing an image
US20080106507A1 (en) * 1994-10-25 2008-05-08 Fergason James L Optical display system and method, active and passive dithering using birefringence, color image superpositioning and display enhancement with phase coordinated polarization switching
US5537256A (en) * 1994-10-25 1996-07-16 Fergason; James L. Electronic dithering system using birefrigence for optical displays and method
US5715029A (en) * 1994-10-25 1998-02-03 Fergason; James L. Optical dithering system using birefringence for optical displays and method
US5572341A (en) * 1994-10-25 1996-11-05 Fergason; James L. Electro-optical dithering system using birefringence for optical displays and method
US6184969B1 (en) 1994-10-25 2001-02-06 James L. Fergason Optical display system and method, active and passive dithering using birefringence, color image superpositioning and display enhancement
US6243055B1 (en) 1994-10-25 2001-06-05 James L. Fergason Optical display system and method with optical shifting of pixel position including conversion of pixel layout to form delta to stripe pattern by time base multiplexing
US7352347B2 (en) 1994-10-25 2008-04-01 Fergason Patent Properties, Llc Optical display system and method, active and passive dithering using birefringence, color image superpositioning and display enhancement with phase coordinated polarization switching
US20090033607A1 (en) * 1994-10-25 2009-02-05 Fergason James L Optical display system and method, active and passive dithering using birefringence, color image superpositioning and display enhancement with phase coordinated polarization switching
US20080122771A1 (en) * 1994-10-25 2008-05-29 Fergason James L Optical display system and method, active and passive dithering using birefringence, color image superpositioning and display enhancement with phase coordinated polarization switching
US7843417B2 (en) 1994-10-25 2010-11-30 Fergason Patent Properties, Llc Optical display system and method, active and passive dithering using birefringence, color image superpositioning and display enhancement with phase coordinated polarization switching
US20080136762A1 (en) * 1994-10-25 2008-06-12 Fergason James L Optical display system and method, active and passive dithering using birefringence, color image superpositioning and display enhancement with phase coordinated polarization switching
US6816141B1 (en) 1994-10-25 2004-11-09 Fergason Patent Properties Llc Optical display system and method, active and passive dithering using birefringence, color image superpositioning and display enhancement with phase coordinated polarization switching
US20080259012A1 (en) * 1994-10-25 2008-10-23 Fergason James L Optical display system and method, active and passive dithering using birefringence, color image superpositioning and display enhancement with phase coordinated polarization switching
EP1995715A1 (en) 1994-10-25 2008-11-26 Fergason Patent Properties, LLC Optical display system and method, active and passive dithering using birefringence, color image superpositioning and display enhancement
US7843418B2 (en) 1994-10-25 2010-11-30 Fergason Patent Properties, Llc Optical display system and method, active and passive dithering using birefringence, color image superpositioning and display enhancement with phase coordinated polarization switching
US7843416B2 (en) 1994-10-25 2010-11-30 Fergason Patent Properties, Llc Optical display system and method, active and passive dithering using birefringence, color image superpositioning and display enhancement with phase coordinated polarization switching
US6379009B1 (en) 1996-04-24 2002-04-30 James L. Fergason Conjugate optics projection display with image enhancement
US5777706A (en) * 1996-05-17 1998-07-07 Motorola, Inc. Nematic liquid crystal phase spatial light modulator for enhanced display resolution
US6606132B2 (en) 1997-08-25 2003-08-12 Harris Corporation Vibration and shock resistant liquid crystal display and associated method
US6252639B1 (en) * 1997-08-25 2001-06-26 Harris Corporation Vibration and shock resistant liquid crystal display and associated methods
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