Patents Assigned to Technical Instrument Company
  • Single aperture confocal imaging system
    Patent number: 5537247
    Abstract: A confocal scanning imaging system utilizes only one aperture for both the incident light from the light source and return light from the object. To improve its performance, the aperture plate is tilted with respect to the incident light path, the surfaces are coated with anti-reflection coating, the surfaces are optically flat, and the size of the aperture is designed to act as a one-way spatial filter. Other devices may be strategically placed to minimize the negative effects from scattered light.
    Type: Grant
    Filed: March 15, 1994
    Date of Patent: July 16, 1996
    Assignee: Technical Instrument Company
    Inventor: Guoqing Xiao