Inventor

Lorne A. Whitehead

Inventor

Vancouver, CA

Overview

1981–2021

Patent span

Physics

Primary field (CPC G)

Patents· 145 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G02Fprimary

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein17%

G02BOptical elements, systems or apparatus15%

G09GArrangements or circuits for control of indicating devices using static means to present variable information14%

H04NPictorial communication, e.g. television10%

G03BApparatus or arrangements for taking photographs or for projecting or viewing them6%

G06TImage data processing or generation, in general4%

F21VFunctional features or details of lighting devices or systems thereof3%

G09FDisplaying3%

F21SNon-portable lighting devices2%

H01JElectric discharge tubes or discharge lamps2%

PatentTitleYear

11,039,579Electrically switchable shutter2021 11,022,066Actuator device utilizing radiative cooling2021 10,750,137Optical mixing and shaping system for display backlights and displays incorporating same2020 10,540,932Rapid estimation of effective illuminance patterns for projected light fields2020 10,416,480Image display2019 10,373,574Locally dimmed quantum dot display2019 10,304,394Color filter registered reflective display2019 10,261,221Corner reflector reflective image display2019 10,264,225Optical mixing and shaping system for display backlights and displays incorporating the same2019 10,261,405Projection displays2019 10,203,436Method and apparatus for improved color filter saturation2019 10,186,211Rapid estimation of effective illuminance patterns for projected light fields2019 9,964,269Light distribution systems and methods2018 9,939,706Displaced porous electrode for frustrating TIR and returning light through exit pupil2018 9,934,733Rapid estimation of effective illuminance patterns for projected light fields2018 9,911,389'Locally dimmed quantum dot display'2018 9,897,890'Reflective image display with threshold'2018 9,810,943'Parallax reduction'2017 9,804,487'Projection displays'2017 9,746,740'Registered reflective element for a brightness enhanced TIR display'2017 9,746,148'Sunlight redirector with fixed mirror segments'2017 9,740,075'Method and system for perforated reflective film display device'2017 9,612,501'Method and apparatus for front-lit semi-retro-reflective display'2017 9,534,746'High-uniformity limited-spread point spread function light emitter'2017 9,534,304'Scodaphoresis and methods and apparatus for moving and concentrating particles'2017 9,478,176'Rapid estimation of effective illuminance patterns for projected light fields'2016 9,478,182'Locally dimmed quantum dots (nano-crystal) based display'2016 9,462,240'Locally dimmed cinema projection system with reflective modulation and narrowband light sources'2016 9,412,337'Projection displays'2016 9,341,887'Displays with a backlight incorporating reflecting layer'2016 9,324,253'Modular electronic displays'2016 9,304,287'Light concentrating apparatus'2016 9,280,029'Registered reflective element for a brightness enhanced TIR display'2016 9,269,312'Rapid estimation of effective illuminance patterns for projected light fields'2016 9,270,956'Image display'2016 9,099,046'Apparatus for providing light source modulation in dual modulator displays'2015 9,071,062'Systems and methods for dipole enhanced inductive power transfer'2015 9,013,788'Dual-stage sunlight redirection system'2015 8,948,537'Enhancing dynamic ranges of images'2015 8,928,981'Sunlight redirecting mirror arrays'2015 8,890,799'Display with red, green, and blue light sources'2014 8,824,829'Enhancing dynamic ranges of images'2014 8,733,960'Locally dimmed cinema projection system with reflective modulation and narrowband light sources'2014 8,692,956'Diffuser for light from light source array and displays incorporating same'2014 8,684,533'Projection displays'2014 8,624,944'Rapid image rendering on dual-modulator displays'2014 8,611,011'Dual-stage sunlight redirection system'2013 8,582,913'Enhancing dynamic ranges of images'2013 8,509,528'Methods and systems for converting images from low dynamic range to high dynamic range'2013 8,480,871'Scodaphoresis and methods and apparatus for moving and concentrating particles'2013 8,471,807'Calibration of displays having spatially-variable backlight'2013 8,446,351'Edge lit LED based locally dimmed display'2013 8,434,887'Optical mixing and shaping system for display backlights and displays incorporating the same'2013 8,419,194'Locally dimmed display'2013 8,408,718'Locally dimmed display'2013 8,352,224'Stripwise construction of 3D curved surfaces'2013 8,294,658'Parallax-reducing, luminance-preserving diffuser'2012 8,277,056'Locally dimmed display'2012 8,265,378'Methods and systems for converting images from low dynamic to high dynamic range'2012 8,249,337'Methods and systems for converting images from low dynamic range to high dynamic range'2012 8,233,738'Enhancing dynamic ranges of images'2012 8,217,970'Rapid image rendering on dual-modulator displays'2012 8,212,966'Diffuser for light from light source array and displays incorporating same'2012 8,174,546'Apparatus and methods for rapid image rendering on dual-modulator displays'2012 8,172,401'Edge lit locally dimmed display'2012 8,133,371'Scodaphoresis and methods and apparatus for moving and concentrating particles'2012 8,135,230'Enhancing dynamic ranges of images'2012 8,125,425'HDR displays with dual modulators having different resolutions'2012 8,059,110'Motion-blur compensation in backlit displays'2011 8,040,591'Ionic electrophoresis in TIR-modulated reflective image displays'2011 8,000,014'Adaptive sunlight redirector'2011 7,973,878'Diffuser for light from light source array and displays incorporating same'2011 7,942,531'Edge lit locally dimmed display'2011 7,801,426'High dynamic range display devices having color light sources'2010 7,800,822'HDR displays with individually-controllable color backlights'2010 7,777,945'HDR displays having light estimating controllers'2010 7,760,417'Brightness enhancement by fluid interface deformation in TIR-modulated displays'2010 7,753,530'HDR displays and control systems therefor'2010 7,731,367'HDR displays and control systems therefor'2010 7,733,568'Retroreflective optical collimation layer and display devices incorporating same'2010 7,591,094'Perforated multi-layer optical film luminaire'2009 7,581,837'HDR displays and control systems therefor'2009 7,583,331'Diffuser for light from light source array and displays incorporating same'2009 7,578,606'Luminance-preserving, parallax-reducing diffuser'2009 7,576,905'Electrostatically-controlled diffraction gratings using ionic electrophoresis'2009 7,505,243'Magnetic levitation apparatus'2009 7,419,267'HDR displays with overlapping dual modulation'2008 7,413,309'High dynamic range display devices'2008 7,413,307'High dynamic range display devices'2008 7,403,332'High dynamic range display devices'2008 7,377,652'HDR displays having location specific modulation'2008 7,370,979'Calibration of displays having spatially-variable backlight'2008 7,348,691'Magnetic levitation apparatus'2008 7,286,280'Brightness enhancement film for backlit image displays'2007 7,172,297'High dynamic range display devices'2007 7,164,536'Optically coupled toroidal lens:hemi-bead brightness enhancer for total internal reflection modulated image displays'2007 7,106,505'High dynamic range display devices'2006 6,891,658'Wide viewing angle reflective display'2005 6,891,672'High dynamic range display devices'2005 6,885,496'Wide viewing angle reflective display'2005 6,865,011'Self-stabilized electrophoretically frustrated total internal reflection display'2005 6,574,025'Optical switching by controllable frustration of total internal reflection'2003 6,522,807'High efficiency reflector for directing collimated light into light guides'2003 6,452,734'Composite electrophoretically-switchable retro-reflective image display'2002 6,437,921'Total internal reflection prismatically interleaved reflective film display screen'2002 6,418,253'High efficiency reflector for directing collimated light into light guides'2002 6,384,979'Color filtering and absorbing total internal reflection image display'2002 6,377,383'Optical switching by controllable frustration of total internal reflection'2002 RE037594'Light guide employing multilayer optical film'2002 6,304,365'Enhanced effective refractive index total internal reflection image display'2001 6,215,920'Electrophoretic, high index and phase transition control of total internal reflection in high efficiency variable reflectivity image displays'2001 6,087,653'Light guide implementation of a proximity detector'2000 6,079,844'High efficiency high intensity backlighting of graphic displays'2000 6,064,784'Electrophoretic, dual refraction frustration of total internal reflection in high efficiency variable reflectivity image displays'2000 6,025,583'Concentrating heliostat for solar lighting applications'2000 6,024,462'High efficiency high intensity backlighting of graphic displays'2000 5,999,307'Method and apparatus for controllable frustration of total internal reflection'1999 5,959,777'Passive high efficiency variable reflectivity image display device'1999 5,901,266'Uniform light extraction from light guide, independently of light guide length'1999 5,715,347'High efficiency prism light guide with confocal parabolic cross section'1998 5,682,075'Porous gas reservoir electrostatic transducer'1997 5,661,839'Light guide employing multilayer optical film'1997 5,650,880'Ferro-fluid mirror with shape determined in part by an inhomogeneous magnetic field'1997 5,642,015'Elastomeric micro electro mechanical systems'1997 5,481,637'Hollow light guide for diffuse light'1996 5,450,498'High pressure low impedance electrostatic transducer'1995 5,339,382'Prism light guide luminaire with efficient directional output'1994 5,243,506'High aspect ratio light emitter having high uniformity and directionality'1993 5,186,530'Lighting structure having variable transmissivity internal light guide illumination'1993 5,168,183'Levitation system with permanent magnets and coils'1992 5,164,033'Electro-chemical etch device'1992 4,981,838'Superconducting alternating winding capacitor electromagnetic resonator'1991 4,937,716'Illuminating device having non-absorptive variable transmissivity cover'1990 4,912,605'Illumination system which reduces loss of visibility caused by lamp failure'1990 4,885,783'Elastomer membrane enhanced electrostatic transducer'1989 4,883,341'Non-reflective graphic surface'1989 4,850,665'Method and apparatus for controlled emission of light from prism light guide'1989 4,834,495'Collapsible light pipe'1989 4,787,708'Apparatus for continuously controlled emission of light from prism light guide'1988 4,750,798'Prism light guide luminaire'1988 4,662,728'Light guide apparatus'1987 4,649,462'Viewing angle color sensitive lighting accessory'1987 4,615,579'Prism light guide luminaire'1986 4,542,449'Lighting panel with opposed 45.degree. corrugations'1985 4,260,220'Prism light guide having surfaces which are in octature'1981

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1981–2021Based in Vancouver, CA· patent location history

1989–2021Patents assigned to UNIV BRITISH COLUMBIA (47)· patent assignee history

1989Based in St. Paul, MN, US· patent location history

2008–2016Patents assigned to DOLBY LAB LICENSING CORP (48)· patent assignee history

2011–2016Patents assigned to WHITEHEAD LORNE A (24)· patent assignee history

2011–2016Patents assigned to SEETZEN HELGE (18)· patent assignee history

2011–2016Patents assigned to WARD GREGORY JOHN (16)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
DOLBY LAB LICENSING CORP	48	2008–2016
UNIV BRITISH COLUMBIA	47	1989–2021
WHITEHEAD LORNE Aself	24	2011–2016
SEETZEN HELGE	18	2011–2016
WARD GREGORY JOHN	16	2011–2016

Locations

Location	Patents	Span
Vancouver, CA	144	1981–2021
St. Paul, Minnesota, US	1	1989