Patents by Inventor Moriyuki Ito

Moriyuki Ito has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Spotlight source apparatus
    Patent number: 6280059
    Abstract: The present invention comprises a discharge lamp (2) for emitting light; a cold mirror (4), having an opening portion, for reflecting the light emitted from the discharge lamp; a reflecting mirror (10), located on the opening portion side of the cold mirror, for reflecting the light reflected by the cold mirror; a light-shielding drum (6) having a light emission port (8) for emitting the light reflected by the reflecting mirror; a stepping motor 14 for driving the reflecting mirror and the light-shielding drum to rotate about an optical axis of the discharge lamp; rotational angle detecting means (18, 20) for detecting a rotational angle of the reflecting mirror and the light-shielding drum; and control means (40, 46) for controlling, according to the rotational angle detected by the rotational angle detecting means, the rotational driving of the reflecting mirror and the light-shielding drum (6) caused by the stepping motor 14; wherein any of a plurality of irradiation ports is selectively irradiated through
    Type: Grant
    Filed: March 31, 2000
    Date of Patent: August 28, 2001
    Assignee: Hamamatsu Photonics K.K.
    Inventors: Moriyuki Ito, Kazuhito Kawai