Abstract: The Dual Spectrum Illumination System (DSIS) is a modular light source having two independent emitters of optical radiation. A halogen bulb provides a high intensity visible beam. The second source of emissions is a ring of light emitting diodes (LED). The LED ring can be configured to supply area illumination, beam illumination, or a combination of area and beam illumination. The spectrum emitted by the LED is selectable from the wide range of commercially available diodes. The illumination system provides a beam and infrared area lighting using 21 high power, 6 watt, LEDs emitting at 880 nanometers mounted on the ring. Illumination control electronics are provided on a printed circuit assembly to provide the diodes with the correct current and voltage. A second embodiment of the invention is as a direct replacement for aircraft landing lights, mobile vehicle head lights, and any other situation requiring beam illumination.
Type:
Grant
Filed:
April 2, 1997
Date of Patent:
November 16, 1999
Assignee:
Jimmy G. Cook
Inventors:
Mark Garland Chapman, Laurence Hastings Bloxham
Abstract: The Dual Spectrum Illumination System (DSIS) is a modular light source having two independent emitters of optical radiation. A halogen bulb provides a high intensity visible beam. The second source of emissions is a ring of light emitting diodes (LED). The LED ring can be configured to supply area illumination, beam illumination, or a combination of area and beam illumination. The spectrum emitted by the LED is selectable from the wide range of commercially available diodes. The illumination system provides a beam and infrared area lighting using 21 high power, 6 watt, LEDs emitting at 880 nanometers mounted on the ring. Illumination control electronics are provided on a printed circuit assembly to provide the diodes with the correct current and voltage. A second embodiment of the invention is as a direct replacement for aircraft landing lights, mobile vehicle head lights, and any other situation requiring beam illumination.
Type:
Grant
Filed:
September 8, 1995
Date of Patent:
November 11, 1997
Assignee:
Jimmy G. Cook
Inventors:
Mark Garland Chapman, Laurence Hastings Bloxham