Patents by Inventor Klaus Andree

Klaus Andree 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).

  • Opto-electronic scan head which has a housing portion and a housing member that are coupled together by first and second guide rods so as to allow relative motion therebetween
    Patent number: 4742401
    Abstract: An opto-electronic scanning head for drum and flat bed scanning apparatus for point-by-point and line-by-line scanning of opaque and transparent originals which are illuminated point-by-point. The housing of the scanning head 7 has a front panel 9 which is displaceable along the optical axis 12 of the scanning objective lens 11 and has a housing part which is stationary with respect to the optical axis 12. The scanning objective 11 is mounted in the front panel 9, but the diaphragm 13 and the opto-electronic transducer 14 are mounted in the housing portion 8. The scanning objective 11 can be displaced over a broad range with a sensitive adjustment mechanism for the front panel 9 so that the focus range can always be placed into the image plane of the originals and thus optimum image sharpness can be achieved for originals having all different thicknesses.
    Type: Grant
    Filed: October 23, 1986
    Date of Patent: May 3, 1988
    Assignee: Dr. Ing. Rudolf Hell GmbH
    Inventors: Klaus Andree, Ralf Balzeit, Ulrich Parl, Lutz Rebetge