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Compact illumination device

  • US 7,717,594 B2
  • Filed: 06/14/2007
  • Issued: 05/18/2010
  • Est. Priority Date: 06/14/2007
  • Status: Active Grant
First Claim
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1. An illumination system for a ceiling structure of an airplane having at least a first row of stowage bins adjacent said ceiling structure, said illumination system comprising:

  • a. a compact illumination device placed in near proximity to the center of said ceiling structure and opposite said first row of stowage bins, said illumination device further comprising a lighting fixture;

    b. a light emitting diode attached to said lighting fixture;

    c. a beam forming optic coupled to said light emitting diode;

    d. a first prism coupled to said beam forming optic, said first prism effective for turning or splitting a beam of emitted light into a first portion of emitted light for direct lighting of an illumination target and a second portion of emitted light for direct lighting of a second illumination target,e. a second prism effective for directing a third portion of light from a second beam forming optic toward an aspheric surface, the aspheric surface effective for reflecting said third portion of emitted light for indirect lighting of a third illumination target.

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