Patents Assigned to poLight AS
  • Patent number: 10473900
    Abstract: The present invention relates to a transparent optical device element comprising a microlens and a method of providing stress and thermal compensation and tuning mechanical strength and curvature of a tunable microlens.
    Type: Grant
    Filed: July 17, 2015
    Date of Patent: November 12, 2019
    Assignee: POLIGHT ASA
    Inventors: John Phair, Thomas Spatscheck, Vladimir Kartashov
  • Patent number: 10288777
    Abstract: The present invention relates to transparent optical device elements comprising a deformable lens body and to a method for changing the refractive index (RI) of a deformable lens body. The deformable lens body of the invention has an improved mechanical stability, a high refractive index, an optimal degree of stiffness and sheer modulus for use as optical lens.
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: May 14, 2019
    Assignee: poLight ASA
    Inventor: Lars Henriksen
  • Patent number: 10154241
    Abstract: The invention relates to post-processing of a digital photo to correct perspective distortion in the photo. The correction applies a digital photo of a scene and a depth map associated with the photo and comprising, for each pixel in the photo, a depth being a distance between a part of the scene in that pixel and a position of the camera at the time of acquisition. The correction is performed locally, so that the correction of any pixel in the photo depends on the depth of that pixel. The correction can be implemented as a transformation of each pixel in the original photo into a new position in a corrected photo. Afterwards, pixel values has to be calculated for the pixels in the corrected photo using the original pixel values and their new positions.
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: December 11, 2018
    Assignee: Polight AS
    Inventors: Tore Svortdal, Pierre Craen, Nicolas Tallaron, Jacques Dumarest
  • Patent number: 10001629
    Abstract: There is presented a transparent optical device element (700) comprising an optical lens (744), comprising one or more piezoelectric actuators (206, 208, 210), wherein said optical lens (744) comprises an optical aperture (632), and wherein the optical device element furthermore comprises a passivation layer (312, 314, 742, 628) placed on said optical lens, said passivation layer comprising a barrier layer (312) forming a humidity barrier, and being located on at least a portion of said cover member, where said portion of said cover member is intersected by the optical axis, and on said piezoelectric actuators, and wherein the passivation layer furthermore comprises one or more further layers (628) located on at least said portion of said cover member being intersected by the optical axis, wherein said passivation layer forms an anti-reflection coating for said optical lens (744) at least along the optical axis (634).
    Type: Grant
    Filed: July 17, 2015
    Date of Patent: June 19, 2018
    Assignee: POLIGHT AS
    Inventors: Pierre Craen, John Phair, Nicolas Tallaron
  • Patent number: 9964672
    Abstract: The present invention comprises a system and a method thereof for identifying a specific Interdigitated Electrode pattern arrangement for piezoelectric actuators located around an aperture of a flexible lens body, wherein the Interdigitated Electrode configuration is configurable, when activated, to provide a specific definable bending force distribution, thereby providing a specific definable shaping of the flexible lens body, thereby providing specific definable optical characteristics of the flexible lens body.
    Type: Grant
    Filed: September 18, 2013
    Date of Patent: May 8, 2018
    Assignee: Polight AS
    Inventors: John Phair, Paul Muralt
  • Patent number: 9581737
    Abstract: The present invention relates to transparent optical device elements comprising a deformable lens body and to a method for changing the refractive index (RI) of a deformable lens body. The deformable lens body of the invention has an improved mechanical stability, a high refractive index, an optimal degree of stiffness and sheer modulus for use as optical lens.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: February 28, 2017
    Assignee: POLIGHT AS
    Inventor: Lars Henriksen
  • Patent number: 8883019
    Abstract: The present invention provides method steps for manufacturing an assembly of adjustable lenses on a wafer. The method steps provide an easy manufacturing of such lenses, minimizing the cost of assembly, and at the same time provide a solution for mass production of compact adjustable lenses for use in mobile phones, etc.
    Type: Grant
    Filed: October 5, 2007
    Date of Patent: November 11, 2014
    Assignee: Polight AS
    Inventors: Lars Henriksen, Morten Eliassen, Vladimir Kartashov, Jon Herman Ulvensøen, Ib-Rune Johansen, Karl Henrik Haugholt, Dag Torstein Wang, Frode Tyholdt, Wilfred Booij
  • Patent number: 8724198
    Abstract: The present invention is generally related to the field of optical systems and/or lens attachments, and more specific to an optical system and/or lens attachment providing a switchable Optical Power Switch (OPS) controllably switchable between different states. A soft transparent material (12), for example silicone-gel is disposed onto a surface of a glass plate (10). The glass plate (10) can be moved with actuators towards a surface of a lens body (10). When the soft material element (12) is in contact with the surface of the lens body (12), this surface changes its optical feature.
    Type: Grant
    Filed: September 13, 2010
    Date of Patent: May 13, 2014
    Assignee: Polight AS
    Inventors: Thomas Spatscheck, Vladimir Kartashov, Jon Herman Ulvensoen, Lars Henriksen
  • Patent number: 8390939
    Abstract: The present invention is related to a lens assembly comprising a flexible lens body (10) inside a cavity bounded by a sidewall (11) and a first transparent cover (13), and a second transparent cover (14), wherein both covers (13,14) are in contact with respective surfaces of the lens body (10). Piezo electric elements (12) shapes the lens body (10) when activated, thereby adjusting the focal length of the lens assembly.
    Type: Grant
    Filed: February 12, 2008
    Date of Patent: March 5, 2013
    Assignee: poLight AS
    Inventors: Lars Henriksen, Morten Eliassen, Vladimir Kartashov, Jon Herman Ulvensoen, Ib-Rune Johansen, Karl Henrik Haugholt, Dag Torstein Wang, Frode Tyholdt, Wilfred Booij
  • Patent number: 8310772
    Abstract: The present invention provides thermal compensation for a lens assembly comprising a polymer lens body. Polymers do have different thermal expansion coefficients which makes it necessary to compensate for thermal expansions to keep optical characteristics of such lenses within specifications when used under different environmental conditions. Also, it is necessary to provide thermal compensation during manufacturing of such lenses due to high temperatures during manufacturing steps.
    Type: Grant
    Filed: July 9, 2009
    Date of Patent: November 13, 2012
    Assignee: Polight AS
    Inventors: Lars Henriksen, Thomas Spatscheck, Vladimir Kartashov, Jon Herman Ulvensøen
  • Patent number: 8199410
    Abstract: The invention relates to an optical element having adjustable focal length, and a method for producing an optical element. The optical element comprising a first transparent layer and a transparent soft polymer having a chosen refractive index situated thereon, said layer being made from a material having a chosen flexibility, e.g. a thin glass layer, the optical element also being provided with an actuator for applying a force upon said flexible layer, said force being essentially symmetric relative to said axis thus bending the layer providing a lens surface and providing a curved refractive surface.
    Type: Grant
    Filed: September 21, 2007
    Date of Patent: June 12, 2012
    Assignee: poLight AS
    Inventors: Karl H. Haugholt, Dag Thorstein Wang, Frode Tyholdt, Wilfred E. Booij, Ib-Rune Johansen
  • Patent number: 8045280
    Abstract: The present invention provides a solution for designing a compact adjustable lens assembly, wherein a circular shaped piezoelectric crystal is bending a thin glass cover, thereby providing a shift of focal length of the lens assembly.
    Type: Grant
    Filed: October 5, 2007
    Date of Patent: October 25, 2011
    Assignee: poLight AS
    Inventors: Lars Henriksen, Morten Eliassen, Vladimir Kartashov, Jon Herman Ulvensøen, Ib-Rune Johansen, Karl Henrik Haugholt, Dag Torstein Wang, Frode Tyholdt, Wilfred Booij
  • Publication number: 20110164330
    Abstract: The present invention provides thermal compensation for a lens assembly comprising a polymer lens body. Polymers do have different thermal expansion coefficients which makes it necessary to compensate for thermal expansions to keep optical characteristics of such lenses within specifications when used under different environmental conditions. Also, it is necessary to provide thermal compensation during manufacturing of such lenses due to high temperatures during manufacturing steps.
    Type: Application
    Filed: July 9, 2009
    Publication date: July 7, 2011
    Applicant: POLIGHT AS
    Inventors: Lars Henriksen, Thomas Spatscheck, Vladimir Kartashov, Jon Herman Ulvensøen
  • Publication number: 20110158617
    Abstract: Image stabilization devices and methods are disclosed. In various embodiments, image stabilization is achieved by altering the direction of the optical axis through a flexible lens body by activating actuators attached to the flexible lens body, wherein the amount of applied voltages onto the actuators are proportional to signals provided by motion sensors sensing yawing and pitching movements, respectively.
    Type: Application
    Filed: May 7, 2010
    Publication date: June 30, 2011
    Applicant: poLight AS
    Inventors: Benny Svardal, Thomas Spatcheck, Vladimir Kartashov
  • Publication number: 20110096411
    Abstract: The present invention is related to a lens assembly comprising a flexible lens body (10) inside a cavity bounded by a sidewall (11) and a first transparent cover (13), and a second transparent cover (14), wherein both covers (13,14) are in contact with respective surfaces of the lens body (10). Piezo electric elements (12) shapes the lens body (10) when activated, thereby adjusting the focal length of the lens assembly.
    Type: Application
    Filed: February 12, 2008
    Publication date: April 28, 2011
    Applicant: poLight AS
    Inventors: Lars Henriksen, Morten Eliassen, Vladimir Kartashov, Jon Herman Ulvensoen, Ib-Rune Johansen, Karl Henrik Haugholt, Dag Torstein Wang, Frode Tyholdt, Wilfred Booij
  • Publication number: 20100182338
    Abstract: A method and system providing dynamic contrast control in scanning line color display systems, and particularly a method and system comprising at least two modulator units is disclosed. One modulator unit is for modulating pixel information in a line to be displayed while the other one provides illumination intensity control over different pixel areas or clusters of pixels of said same line to be displayed by using a tunable diffractive grating element (TDG) in the illumination path to provide image source dependent active brightness level control, i.e. ‘dynamic contrast’, as well as a shutter function for pixels off transition periods.
    Type: Application
    Filed: December 9, 2008
    Publication date: July 22, 2010
    Applicant: POLIGHT AS
    Inventors: Gunnar Hedin, Richard Berglind, Tore Svortdal, Benny Svardal
  • Publication number: 20100133230
    Abstract: The present invention provides method steps for manufacturing an assembly of adjustable lenses on a wafer. The method steps provide an easy manufacturing of such lenses, minimizing the cost of assembly, and at the same time provide a solution for mass production of compact adjustable lenses for use in mobile phones, etc.
    Type: Application
    Filed: October 5, 2007
    Publication date: June 3, 2010
    Applicant: POLIGHT AS
    Inventors: Lars Henriksen, Morten Eliassen, Vladimir Kartashov, Jon Herman Ulvensøen
  • Publication number: 20100091389
    Abstract: The present invention provides a solution for designing a compact adjustable lens assembly, wherein a circular shaped piezoelectric crystal is bending a thin glass cover, thereby providing a shift of focal length of the lens assembly.
    Type: Application
    Filed: October 5, 2007
    Publication date: April 15, 2010
    Applicant: POLIGHT AS
    Inventors: Lars Henriksen, Morten Eliassen, Vladimir Kartashov, Jon Herman Ulvensoen
  • Publication number: 20090284666
    Abstract: Doubling the resolution of images in a line scan projection system is possible without doubling the length of the modulator or changing the size of the pixels. By arranging an additional pixel row in the modulator, and merging the rows together with half a pixel offset in both directions in the projected image, the resolution may be effectively doubled without significantly increasing the size or speed requirement for the modulator itself.
    Type: Application
    Filed: December 9, 2008
    Publication date: November 19, 2009
    Applicant: POLIGHT AS
    Inventor: Benny Svardal
  • Publication number: 20090221765
    Abstract: The present invention relates to a tuneable diffraction grating modulator based on the principle of total internal reflection comprising an elastomer as a deformable layer to be modulated in a nonuniform electric field.
    Type: Application
    Filed: December 6, 2006
    Publication date: September 3, 2009
    Applicant: Polight AS
    Inventors: Lars Henriksen, Vladimir Kartashov