Patents Assigned to New Dimension Research & Instrument, Inc.
  • Patent number: 6399936
    Abstract: A confocal scanning imaging device for viewing an object includes an array of independently addressable microlasers and an array of detectors for detecting light from an object to which light from the microlasers has been directed. The array of microlasers and the array of detectors are combined into a single array, such as on a single chip, and in a pattern constructed and arranged so that different detectors are adjacent to each microlaser so that light from an illuminated object may be directed back to the vicinity of the illuminating microlaser and be detected by the adjacent detector(s). An optical arrangement directs light generated by the microlasers onto an object and directs light from an object so illuminated onto detectors adjacent to the illuminating microlaser. The optical arrangement includes a bilens and a matching lens system including two objective lenses. A microlens of pitch substantially identical to the pitch of the microlaser array collimates light generated by the microlasers.
    Type: Grant
    Filed: September 28, 1999
    Date of Patent: June 4, 2002
    Assignee: New Dimension Research Instrument, Inc.
    Inventors: Zhijiang Hang, Victor Lazarev, Robert H. Webb
  • Patent number: 6208609
    Abstract: Methods and apparatus are provided for retrieving encoded information from data tracks on an optical disk using an array of microlasers as the illumination sources, an array of micro-scale photo detectors as the detection elements, and a bilens (BL) as the main optical component. Multiple configurations are provided to position microlasers and photo detectors together on a mobile laser/detector block (LDB). Laser beams generated by the surface-emitting microlasers are guided by the BL onto the optical disk (OD) surface. The reflected light is collected by the same BL, shifted, and then directed back onto the respective photo detectors on the LDB. Illumination, detection and alignment methods and apparatus for tracking, focusing, and magnification servo controls are also incorporated on the LDB.
    Type: Grant
    Filed: November 12, 1998
    Date of Patent: March 27, 2001
    Assignee: New Dimension Research & Instrument, Inc.
    Inventors: Zhigiang Hang, Victor Lazarev
  • Patent number: 6130873
    Abstract: Methods and apparatus are provided for retrieving encoded information from data tracks on an optical disk using an array of microlasers as the illumination sources, an array of micro-scale photo detectors as the detection elements, and a bilens (BL) or a holographic optical element (HOE) as the main optical component. Multiple configurations are provided to position microlasers and photo detectors together on a mobile laser/detector block (LDB). The microlasers and detectors may be arranged in a hexagonal lattice relationship for an optimally compact arrangement. Laser beams generated by the surface-emitting microlasers are guided by the BL onto the optical disk (OD) surface. The reflected light is collected by the same BL or HOE, shifted, and then directed back onto the respective photo detectors on the LDB. Illumination, detection and alignment methods and apparatus for tracking, focusing, and magnification servo controls are also incorporated on the LDB.
    Type: Grant
    Filed: November 12, 1999
    Date of Patent: October 10, 2000
    Assignees: New Dimension Research & Instrument, Inc., Kenwood Corporation
    Inventors: Victor Lazarev, Zhijiang Hang, Hiroshi Miyazawa