Tapani Levola

Person

Tampere, FI

People

Patents Grantslast 30 patents

Information Patent Grant
Image display system
- Patent number 10,663,734
- Issue date May 26, 2020
- Microsoft Technology Licensing, LLC
- Tapani Levola
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Waveguide coatings or substrates to improve intensity distributions...
- Patent number 10,359,627
- Issue date Jul 23, 2019
- Microsoft Technology Licensing, LLC
- R. Andrew Wall
- G02 - OPTICS
Information Patent Grant
Wearable image display system
- Patent number 10,345,601
- Issue date Jul 9, 2019
- Microsoft Technology Licensing, LLC
- Tapani Levola
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Display system
- Patent number 10,317,677
- Issue date Jun 11, 2019
- Microsoft Technology Licensing, LLC
- Tapani Levola
- G02 - OPTICS
Information Patent Grant
Wearable image display system
- Patent number 10,018,844
- Issue date Jul 10, 2018
- Microsoft Technology Licensing, LLC
- Tapani Levola
- G02 - OPTICS
Information Patent Grant
Diffractive optical elements with graded edges
- Patent number 9,910,276
- Issue date Mar 6, 2018
- Microsoft Technology Licensing, LLC
- Tuomas Vallius
- G02 - OPTICS
Information Patent Grant
Waveguide gratings to improve intensity distributions
- Patent number 9,791,696
- Issue date Oct 17, 2017
- Microsoft Technology Licensing, LLC
- Scott Woltman
- G02 - OPTICS
Information Patent Grant
Reducing ghost images
- Patent number 9,766,464
- Issue date Sep 19, 2017
- Microsoft Technology Licensing, LLC
- Yarn Chee Poon
- G02 - OPTICS
Information Patent Grant
Optical apparatus and method for expanding an exit pupil
- Patent number 9,753,297
- Issue date Sep 5, 2017
- Nokia Corporation
- Pasi Saarikko
- G02 - OPTICS
Information Patent Grant
Display system
- Patent number 9,632,316
- Issue date Apr 25, 2017
- Microsoft Technology Licensing, LLC
- Tapani Levola
- G02 - OPTICS
Information Patent Grant
Display system
- Patent number 9,535,253
- Issue date Jan 3, 2017
- Microsoft Technology Licensing, LLC
- Tapani Levola
- G02 - OPTICS
Information Patent Grant
Eye tracking apparatus, method and system
- Patent number 9,459,451
- Issue date Oct 4, 2016
- Microsoft Technology Licensing, LLC
- Pasi Saarikko
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Display system
- Patent number 9,372,347
- Issue date Jun 21, 2016
- Microsoft Technology Licensing, LLC
- Tapani Levola
- G02 - OPTICS
Information Patent Grant
Microfabrication
- Patent number 9,304,235
- Issue date Apr 5, 2016
- Microsoft Technology Licensing, LLC
- Lauri Sainiemi
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information Patent Grant
Three-dimensional display for displaying volumetric images
- Patent number 9,200,779
- Issue date Dec 1, 2015
- Nokia Technologies Oy
- Tapani Kalervo Levola
- F21 - LIGHTING
Information Patent Grant
Exit pupil expanders with spherical and aspheric substrates
- Patent number 8,830,584
- Issue date Sep 9, 2014
- Nokia Corporation
- Pasi Saarikko
- G02 - OPTICS
Information Patent Grant
Apparatus for enabling users to view images, methods and computer r...
- Patent number 8,717,392
- Issue date May 6, 2014
- Nokia Corporation
- Tapani Levola
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Color distribution in exit pupil expanders
- Patent number 8,547,638
- Issue date Oct 1, 2013
- Nokia Corporation
- Tapani Levola
- G02 - OPTICS
Information Patent Grant
Device and method for determining gaze direction
- Patent number 8,494,229
- Issue date Jul 23, 2013
- Nokia Corporation
- Toni Järvenpää
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Stereoscopic exit pupil expander display
- Patent number 8,466,953
- Issue date Jun 18, 2013
- Nokia Corporation
- Tapani Levola
- G02 - OPTICS
Information Patent Grant
Display device and a method for illuminating a light modulator arra...
- Patent number 8,331,006
- Issue date Dec 11, 2012
- Nokia Corporation
- Tapani Levola
- G02 - OPTICS
Information Patent Grant
Diffractive beam expander and a virtual display based on a diffract...
- Patent number 8,320,032
- Issue date Nov 27, 2012
- Nokia Corporation
- Tapani Levola
- G02 - OPTICS
Information Patent Grant
Displays with integrated backlighting
- Patent number 8,314,819
- Issue date Nov 20, 2012
- Nokia Corporation
- Jyrki Kimmel
- G02 - OPTICS
Information Patent Grant
Split exit pupil expander
- Patent number 8,314,993
- Issue date Nov 20, 2012
- Nokia Corporation
- Tapani Levola
- G02 - OPTICS
Information Patent Grant
Color distribution in exit pupil expanders
- Patent number 8,254,031
- Issue date Aug 28, 2012
- Nokia Corporation
- Tapani Levola
- G02 - OPTICS
Information Patent Grant
Optical apparatus and method
- Patent number 8,194,325
- Issue date Jun 5, 2012
- Nokia Corporation
- Tapani Levola
- G02 - OPTICS
Information Patent Grant
Device for expanding an exit pupil in two dimensions
- Patent number 8,160,411
- Issue date Apr 17, 2012
- Nokia Corporation
- Tapani Levola
- G02 - OPTICS
Information Patent Grant
Method for coupling light into a thin planar waveguide
- Patent number 8,155,489
- Issue date Apr 10, 2012
- Nokia Corporation
- Pasi Risto Olavi Saarikko
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Light guide and optical sensing module input device and method for...
- Patent number 8,120,762
- Issue date Feb 21, 2012
- Nokia Corporation
- Tapani Levola
- G01 - MEASURING TESTING
Information Patent Grant
Method of producing a diffraction grating element
- Patent number 8,092,723
- Issue date Jan 10, 2012
- Nanocomp Oy Ltd
- Pasi Laakkonen
- B82 - NANO-TECHNOLOGY

Patents Applicationslast 30 patents

Information Patent Application
Wearable Image Display System
- Publication number 20190285899
- Publication date Sep 19, 2019
- Microsoft Technology Licensing, LLC
- Tapani Levola
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Wearable Image Display System
- Publication number 20180267318
- Publication date Sep 20, 2018
- Microsoft Technology Licensing, LLC
- Tapani Levola
- G02 - OPTICS
Information Patent Application
REDUCING GHOST IMAGES
- Publication number 20170176745
- Publication date Jun 22, 2017
- Yarn Chee Poon
- G02 - OPTICS
Information Patent Application
WAVEGUIDE COATINGS OR SUBSTRATES TO IMPROVE INTENSITY DISTRIBUTIONS
- Publication number 20170131545
- Publication date May 11, 2017
- R. Andrew Wall
- G02 - OPTICS
Information Patent Application
WAVEGUIDE GRATINGS TO IMPROVE INTENSITY DISTRIBUTIONS
- Publication number 20170131546
- Publication date May 11, 2017
- Scott Woltman
- G02 - OPTICS
Information Patent Application
DIFFRACTIVE OPTICAL ELEMENTS WITH GRADED EDGES
- Publication number 20170003504
- Publication date Jan 5, 2017
- Tuomas Vallius
- G02 - OPTICS
Information Patent Application
Diffraction Grating Modelling
- Publication number 20160283618
- Publication date Sep 29, 2016
- Tapani Levola
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Display System
- Publication number 20160234485
- Publication date Aug 11, 2016
- Steven John Robbins
- G02 - OPTICS
Information Patent Application
Display System
- Publication number 20160231566
- Publication date Aug 11, 2016
- Tapani Levola
- G02 - OPTICS
Information Patent Application
Display System
- Publication number 20160231569
- Publication date Aug 11, 2016
- Tapani Levola
- G02 - OPTICS
Information Patent Application
Display System
- Publication number 20160231570
- Publication date Aug 11, 2016
- Tapani Levola
- G02 - OPTICS
Information Patent Application
Optical Components
- Publication number 20160033784
- Publication date Feb 4, 2016
- Tapani Levola
- G02 - OPTICS
Information Patent Application
Microfabrication
- Publication number 20160035539
- Publication date Feb 4, 2016
- Lauri Sainiemi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
MICROFABRICATION
- Publication number 20160033697
- Publication date Feb 4, 2016
- Lauri Sainiemi
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information Patent Application
EYE TRACKING APPARATUS, METHOD AND SYSTEM
- Publication number 20150185475
- Publication date Jul 2, 2015
- Pasi Saarikko
- G02 - OPTICS
Information Patent Application
NED POLARIZATION SYSTEM FOR WAVELENGTH PASS-THROUGH
- Publication number 20140064655
- Publication date Mar 6, 2014
- Ian A. Nguyen
- G02 - OPTICS
Information Patent Application
Optical Apparatus and Method for Expanding an Exit Pupil
- Publication number 20130314789
- Publication date Nov 28, 2013
- Nokia Corporation
- Pasi Saarikko
- G02 - OPTICS
Information Patent Application
Three-Dimensional Display for Displaying Volumetric Images
- Publication number 20130170177
- Publication date Jul 4, 2013
- Nokia Corporation
- Tapani Kalervo Levola
- G02 - OPTICS
Information Patent Application
COLOR DISTRIBUTION IN EXIT PUPIL EXPANDERS
- Publication number 20120320460
- Publication date Dec 20, 2012
- Nokia Corporation
- Tapani Levola
- G02 - OPTICS
Information Patent Application
Split Exit Pupil Expander
- Publication number 20110096401
- Publication date Apr 28, 2011
- Tapani Levola
- G02 - OPTICS
Information Patent Application
DISPLAY DEVICE AND A METHOD FOR ILLUMINATING A LIGHT MODULATOR ARRA...
- Publication number 20110019258
- Publication date Jan 27, 2011
- Nokia Corporation
- Tapani Levola
- G02 - OPTICS
Information Patent Application
DEVICE AND METHOD FOR DETERMINING GAZE DIRECTION
- Publication number 20110019874
- Publication date Jan 27, 2011
- Nokia Corporation
- Toni Järvenpää
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
OPTICAL APPARATUS AND METHOD
- Publication number 20100328794
- Publication date Dec 30, 2010
- Nokia Corporation
- Tapani Levola
- G02 - OPTICS
Information Patent Application
DEVICE FOR EXPANDING AN EXIT PUPIL IN TWO DIMENSIONS
- Publication number 20100321781
- Publication date Dec 23, 2010
- Nokia Corporation
- Tapani Levola
- G02 - OPTICS
Information Patent Application
Exit Pupil Expanders with Spherical and Aspheric Substrates
- Publication number 20100315719
- Publication date Dec 16, 2010
- Pasi Saarikko
- G02 - OPTICS
Information Patent Application
Apparatus for enabling users to view images, methods and computer r...
- Publication number 20100302276
- Publication date Dec 2, 2010
- Nokia Corporation
- Tapani Levola
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Display Device Having Two Operating Modes
- Publication number 20100277803
- Publication date Nov 4, 2010
- Nokia Corporation
- Lachlan Pockett
- G02 - OPTICS
Information Patent Application
Stereoscopic Exit Pupil Expander Display
- Publication number 20100231693
- Publication date Sep 16, 2010
- Tapani Levola
- G02 - OPTICS
Information Patent Application
Method For Coupling Light Into A Thin Planar Waveguide
- Publication number 20100220956
- Publication date Sep 2, 2010
- Nokia Corporation
- Pasi Risto Olavi Saarikko
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
DIFFRACTIVE BEAM EXPANDER AND A VIRTUAL DISPLAY BASED ON A DIFFRACT...
- Publication number 20100214659
- Publication date Aug 26, 2010
- Tapani Levola
- G02 - OPTICS

Tapani Levola

Person

Patents Grantslast 30 patents

Image display system

Waveguide coatings or substrates to improve intensity distributions...

Wearable image display system

Display system

Wearable image display system

Diffractive optical elements with graded edges

Waveguide gratings to improve intensity distributions

Reducing ghost images

Optical apparatus and method for expanding an exit pupil

Display system

Display system

Eye tracking apparatus, method and system

Display system

Microfabrication

Three-dimensional display for displaying volumetric images

Exit pupil expanders with spherical and aspheric substrates

Apparatus for enabling users to view images, methods and computer r...

Color distribution in exit pupil expanders

Device and method for determining gaze direction

Stereoscopic exit pupil expander display

Display device and a method for illuminating a light modulator arra...

Diffractive beam expander and a virtual display based on a diffract...

Displays with integrated backlighting

Split exit pupil expander

Color distribution in exit pupil expanders

Optical apparatus and method

Device for expanding an exit pupil in two dimensions

Method for coupling light into a thin planar waveguide

Light guide and optical sensing module input device and method for...

Method of producing a diffraction grating element

Patents Applicationslast 30 patents

Wearable Image Display System

Wearable Image Display System

REDUCING GHOST IMAGES

WAVEGUIDE COATINGS OR SUBSTRATES TO IMPROVE INTENSITY DISTRIBUTIONS

WAVEGUIDE GRATINGS TO IMPROVE INTENSITY DISTRIBUTIONS

DIFFRACTIVE OPTICAL ELEMENTS WITH GRADED EDGES

Diffraction Grating Modelling

Display System

Display System

Display System

Display System

Optical Components

Microfabrication

MICROFABRICATION

EYE TRACKING APPARATUS, METHOD AND SYSTEM

NED POLARIZATION SYSTEM FOR WAVELENGTH PASS-THROUGH

Optical Apparatus and Method for Expanding an Exit Pupil

Three-Dimensional Display for Displaying Volumetric Images

COLOR DISTRIBUTION IN EXIT PUPIL EXPANDERS

Split Exit Pupil Expander

DISPLAY DEVICE AND A METHOD FOR ILLUMINATING A LIGHT MODULATOR ARRA...

DEVICE AND METHOD FOR DETERMINING GAZE DIRECTION

OPTICAL APPARATUS AND METHOD

DEVICE FOR EXPANDING AN EXIT PUPIL IN TWO DIMENSIONS

Exit Pupil Expanders with Spherical and Aspheric Substrates

Apparatus for enabling users to view images, methods and computer r...

Display Device Having Two Operating Modes

Stereoscopic Exit Pupil Expander Display

Method For Coupling Light Into A Thin Planar Waveguide

DIFFRACTIVE BEAM EXPANDER AND A VIRTUAL DISPLAY BASED ON A DIFFRACT...