Patents Represented by Attorney Ivan Ericson

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  • Rare earth halide light source with enhanced red emission
    Patent number: 4801846
    Abstract: This invention teaches a novel high pressure electric discharge lamp which has the desired properties of high efficacy, good color rendering, and a warm color temperature. These desired properties are attained by utilizing as fills the rare earth iodides in conjunction with calcium halides and, or sodium halides. Efficient visible emission from the rare earth atomic and molecular fragments in the discharge is combined with the red emission from calcium monohalide to provide an efficient, warm source.
    Type: Grant
    Filed: October 23, 1987
    Date of Patent: January 31, 1989
    Assignee: GTE Laboratories Incorporated
    Inventors: Jerry Kramer, Walter P. Lapatovich