Patents Assigned to Nutech Optical Systems, Inc.
  • Patent number: 6497490
    Abstract: A laser beam attenuator and a method of attenuating a laser beam are disclosed. The laser beam attenuator includes first and second prisms, a beam dump, and a light absorbing body. An input laser beam partially refracts and partially reflects at a first surface of the first prism to form first refracted and reflected laser beams. The first reflected laser beam partially refracts and partially reflects at a second surface of the second prism to form second refracted and reflected laser beams. The beam dump and the light absorbing body absorb the first and second refracted laser beams. Thus, the second reflected laser beam forms an attenuated laser beam.
    Type: Grant
    Filed: December 14, 1999
    Date of Patent: December 24, 2002
    Assignees: Silicon Light Machines, Nutech Optical Systems, Inc.
    Inventors: Gregory D. Miller, Ying-Moh Liu