Patents by Inventor Wilfred E. Booij

Wilfred E. Booij has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • 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
  • Publication number: 20110149408
    Abstract: The invention relates to an optical element having adjustable focal length comprising a first transparent layer having a chosen flexibility and being provided with a piezoelectric layer adapted to contract upon the application of an electrical voltage and thus bend the first transparent layer, the piezoelectric layer being symmetrically positioned relative to an axis, and wherein the first transparent layer is applied on a substrate having a through going cavity positioned essentially symmetrical relative to said axis, and a transparent polymer being positioned in said cavity having a surface contact with said first transparent layer.
    Type: Application
    Filed: September 21, 2007
    Publication date: June 23, 2011
    Applicant: SINVENT AS
    Inventors: Karl H. Hahgholt, Dag Thorsten Wang, Frode Tyholdt, Wilfred E. Booij, Ib-Rune Johansen
  • Publication number: 20110149409
    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: Application
    Filed: September 21, 2007
    Publication date: June 23, 2011
    Applicant: SINVENT AS
    Inventors: Karl H. Haugholt, Dag Thorstein Wang, Frode Tyholdt, Wilfred E. Booij, Ib-Rune Johansen