Patents by Inventor Hermann Buitkamp

Hermann Buitkamp 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).

  • Light grid and method of itS manufacture
    Patent number: 6175106
    Abstract: An optical arrangement is described having a plurality of light transmitting transmitter elements and/or receiver elements, a plurality of diffractive/refractive optical elements and a transparent front cover, in particular a front plate. The diffractive/refractive optical elements are arranged on a uniform carrier element formed in one piece. The carrier element is formed by the front cover, with the diffractive/refractive optical elements being directly formed in the front cover, and in particular being pressed into or moulded into the latter. The transmitter elements and/or the receiver elements are arranged on a uniform circuit board formed in one piece. Furthermore a light grid is described having such optical arrangements, and also a method for the manufacture of the required components for such optical arrangements.
    Type: Grant
    Filed: March 25, 1998
    Date of Patent: January 16, 2001
    Assignee: Sick AG
    Inventors: Hermann Buitkamp, Heinrich Hippenmeyer