Patents by Inventor Mats Wictor

Mats Wictor 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).

  • Light guide for a display or keyboard
    Patent number: 5746493
    Abstract: A light guide for illuminating a display and/or keyboard device is formed from translucent material as a planar element having a peripheral edge. A plurality of arcuately shaped light coupling recesses are formed on one side to transmit light from light sources substantially uniformly into the light guide. A plurality of light reflecting recesses are formed in the peripheral edge to reflect light at the edge back into the light guide in a manner useful for illuminating the keys of the device.
    Type: Grant
    Filed: March 8, 1996
    Date of Patent: May 5, 1998
    Assignee: Ericsson Inc.
    Inventors: Anders Jonsson, Mats Wictor