Patents Assigned to Electro-Optical Products Corporation
  • LOW FREQUENCY OPTICAL SHUTTER AND DRIVER
    Publication number: 20020118430
    Abstract: An optical shutter comprising a frame with an aperture and shutter blade for modulating a light beam or a particle stream passing through the aperture. The top end of the shutter blade comprises a first sector and a second sector, each sector having different optical characteristics. The bottom end of the shutter blade is coupled to a motor means for pivotally rotating the shutter blade over a limited angular range in a clockwise and counter-clockwise direction such that the first sector is aligned with the aperture when the shutter blade is rotated in one direction and the second sector is aligned with the aperture when the shutter blade is rotated in the other direction.
    Type: Application
    Filed: February 26, 2001
    Publication date: August 29, 2002
    Applicant: Electro-Optical Products Corporation
    Inventor: Israel Tuchman
  • Low frequency optical shutter and driver
    Patent number: 6215575
    Abstract: An optical shutter comprising a frame with an aperture and shutter blade for modulating a light beam or a particle stream passing through the aperture. The top end of the shutter blade comprises a first sector and a second sector, each sector having different optical characteristics. The bottom end of the shutter blade is coupled to a motor means for pivotally rotating the shutter blade over a limited angular range in a clockwise and counter-clockwise direction such that the first sector is aligned with the aperture when the shutter blade is rotated in one direction and the second sector is aligned with the aperture when the shutter blade is rotated in the other direction.
    Type: Grant
    Filed: February 29, 2000
    Date of Patent: April 10, 2001
    Assignee: Electro-Optical Products Corporation
    Inventor: Israel Tuchman
  • Low frequency optical shutter
    Patent number: 6046836
    Abstract: An optical shutter comprising a frame with an aperture and shutter blade for modulating a light beam or a particle stream passing through the aperture. The top end of the shutter blade comprises a first sector and a second sector, each sector having different optical characteristics. The bottom end of the shutter blade is coupled to a motor for pivotally rotating the shutter blade over a limited angular range in a clockwise and counter-clockwise direction such that the first sector is aligned with the aperture when the shutter blade is rotated in one direction and the second sector is aligned with the aperture when the shutter blade is rotated in the other direction.
    Type: Grant
    Filed: March 6, 1998
    Date of Patent: April 4, 2000
    Assignee: Electro-Optical Products Corporation
    Inventor: Israel Tuchman