Patents by Inventor Robert Jens Martinsen

Robert Jens Martinsen 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).

  • Method and apparatus for controlling thermal variations in an optical device
    Patent number: 6636539
    Abstract: A method and apparatus are provided for reducing thermal gradients in optical devices. According to an embodiment of the invention, the size of the heat sink interface is adapted to correspond to a region of principal heat generation within the device. Doing so can make the heat generating region within the device have a more laterally uniform temperature gradient. The reduction (or elimination) of such temperature gradients can lead to a marked reduction in thermal lensing and greatly diminish the change in lensing with applied current, thereby improving the performance of the optical device over a wide operating range.
    Type: Grant
    Filed: May 25, 2001
    Date of Patent: October 21, 2003
    Assignee: Novalux, Inc.
    Inventor: Robert Jens Martinsen
  • Method and apparatus for controlling thermal variations in an optical device
    Publication number: 20020176459
    Abstract: A method and apparatus are provided for reducing thermal gradients in optical devices. According to an embodiment of the invention, the size of the heat sink interface is adapted to correspond to a region of principal heat generation within the device. Doing so can make the heat generating region within the device have a more laterally uniform temperature gradient. The reduction (or elimination) of such temperature gradients can lead to a marked reduction in thermal lensing and greatly diminish the change in lensing with applied current, thereby improving the performance of the optical device over a wide operating range.
    Type: Application
    Filed: May 25, 2001
    Publication date: November 28, 2002
    Inventor: Robert Jens Martinsen