Patents Represented by Law Firm Arent Fox Kintner Plotklin & Kahn
  • Pickup for an optical system including a blazed hologram for dividing a laser
    Patent number: 6088310
    Abstract: A pickup for a recording and reproducing system has a hologram for dividing a laser beam from a laser diode into a main beam and a plurality of sub-beams. The hologram is provided to locate the sub-beams at positions rearward with respect to a scanning direction of the main beam.
    Type: Grant
    Filed: December 23, 1997
    Date of Patent: July 11, 2000
    Assignee: Pioneer Electric Corporation
    Inventor: Naoharu Yanagawa