Patents Examined by Eurcha Cherry
  • Patent number: 6616301
    Abstract: A laser flashlight employs an emitter disposed within a housing for emitting a coherent light beam having a gaussian spatial profile along an optical axis toward the exit face of the housing. An optical system disposed within the housing intermediate the emitter and the exit face of the housing includes a laser element pumped by the emitter, a frequency/wavelength converter, and a resonator, to form the coherent light into a laser beam. A beam expander receives the laser beam, disperses the laser beam, and transmits the dispersed laser beam from the light emitting end of the housing into the ambient environment. The dispersion of the laser beam is such that the laser beam is safe for the human eye.
    Type: Grant
    Filed: July 26, 2002
    Date of Patent: September 9, 2003
    Assignee: LE Systems Inc.
    Inventors: David C. Brown, Richard J. Nelson, Titus A. Casazza, Jay Kehoe