Patents by Inventor M. Eric Krisl

M. Eric Krisl 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).

  • Optical interference coatings and lamps using same
    Patent number: 5982078
    Abstract: Optical interference coatings useful on lamps for transmitting visible light radiation at about 90% average from 400-770 nm and for reflecting infrared radiation comprise three spectrally adjacent multiperiod stacks of alternating high and low index of refraction layers. Compared to conventional filters, these filters have a greater tolerance to layer thickness variations incurred during manufacture with little or no color shift when viewed at non-normal angles.
    Type: Grant
    Filed: May 26, 1994
    Date of Patent: November 9, 1999
    Assignee: General Electric Company
    Inventors: M. Eric Krisl, Robert L. Bateman
  • Optical interference coating and lamps using same
    Patent number: 5138219
    Abstract: Optical interference coatings useful on lamps for transmitting visible light radiation at about 90% average from 400-770 nm and for reflecting infrared radiation comprise three spectrally adjacent multiperiod stacks of alternating high and low index of refraction layers. Compared to conventional filters, these filters have a greater tolerance to layer thickness variations incurred during manufacture with little or no color shift when viewed at non-normal angles.
    Type: Grant
    Filed: May 29, 1991
    Date of Patent: August 11, 1992
    Assignee: General Electric Company
    Inventors: M. Eric Krisl, Robert L. Bateman