Patents Assigned to Tandem Scanning Corporation
  • Confocal tandem scanning reflected light microscope
    Patent number: 5517352
    Abstract: An improved method and apparatus for easily and accurately aligning confocal tandem scanning reflected light microscopes having scanning disc hole diameters as small as 20 microns are described. The method involves the observation and analysis of Moire and other patterns of light occurring within the microscope, and using the apparatus to make very sensitive adjustments that result in a fully aligned, rugged, and stable confocal tandem scanning reflected light microscope offering improved resolution, contrast, and optical slicing capability.
    Type: Grant
    Filed: February 24, 1993
    Date of Patent: May 14, 1996
    Assignee: Tandem Scanning Corporation
    Inventor: James D. Hill
  • Confocal tandem scanning reflected light microscope
    Patent number: 5307203
    Abstract: An improved method and apparatus for easily and accurately aligning confocal tandem scanning reflected light microscopes having scanning disc hole diameters as small as 20 microns are described. The method involves the observation and analysis of Moire and other patterns of light occurring within the microscope, and using the apparatus to make very sensitive adjustments that result in a fully aligned, rugged, and stable confocal tandem scanning reflected light microscope offering improved resolution, contrast, and optical slicing capability.
    Type: Grant
    Filed: December 6, 1990
    Date of Patent: April 26, 1994
    Assignee: Tandem Scanning Corporation
    Inventor: James D. Hill
  • Steroscopic tandem scanning reflected light confocal microscope
    Patent number: 5161052
    Abstract: A stereoscopic tandem scanning reflected light confocal microscope employs longitudinal and transverse chromatic aberration in conjunction with color dispersion prisms in a binocular eyepiece assembly to provide a three dimensional vertical view through a specimen.
    Type: Grant
    Filed: March 29, 1991
    Date of Patent: November 3, 1992
    Assignee: Tandem Scanning Corporation
    Inventor: James D. Hill
  • Scanning disks for use in tandem scanning reflected light microscopes and other optical systems
    Patent number: 5083220
    Abstract: Improvements in optical scanning disks, and methods to maximize resolution and contrast of a viewed target object featuring a Nipkow type disk and methods to produce the disk which has a multitude of pinhole apertures located in a defined annular disk region where each pinhole is equidistantly spaced from its nearest neighboring holes.
    Type: Grant
    Filed: March 22, 1990
    Date of Patent: January 21, 1992
    Assignee: Tandem Scanning Corporation
    Inventor: James D. Hill