Patents Assigned to S-Tron
  • Baffle for attenuating off-axis light emissions
    Patent number: 5093837
    Abstract: A scatter shield attenuates off-axis illumination emanating from a light beam projector. The scatter shield comprises an elongate housing, usually cylindrical, having at least two baffles therein. The dimensions of the scatter shield are selected to assure that off-axis illumination exceeding a preselected angle of divergence is internally reflected within the shield at least three times. Such multiple reflections provide for highly efficient attenuation.
    Type: Grant
    Filed: March 8, 1991
    Date of Patent: March 3, 1992
    Assignee: S-Tron
    Inventor: Oliver J. Edwards