Patents Examined by Robert M. Kilcore
  • Laser beam label reader head
    Patent number: 4019026
    Abstract: A laser beam label reader head of single common axis type wherein light reflection coming from a laser-irradiated label along the axis of a scanning laser beam is diverted by an apertured mirror toward a photoelectric converter. The photoelectric converter is provided with means for removing and blocking incident general light coming from sources other than the laser-irradiated label to preclude influences by ambient light and improve S/N ratio.
    Type: Grant
    Filed: September 23, 1975
    Date of Patent: April 19, 1977
    Assignee: Shinko Electric Co., Ltd.
    Inventors: Sadao Nakanishi, Nobufumi Tokura