Patents by Inventor Manfred Rahlff

Manfred Rahlff 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).

  • Device for reducing the granulation in the transmission of optical information by means of a highly coherent beam of radiation
    Patent number: 3941456
    Abstract: A device is described for reducing the granulation during the transmission of optical information with a highly coherent radiation beam. The device includes a first objective system, a radiation-diffusing element disposed in the image plane thereof, a second objective system and a radiation refracting element of a medium whose refractive property is variable under the influence of an ultrasonic wave.
    Type: Grant
    Filed: March 25, 1974
    Date of Patent: March 2, 1976
    Assignee: U.S. Philips Corporation
    Inventors: Wolfram Schilz, Manfred Rahlff, Uwe Jurgen Schmidt, Klaus Gottfried Plass, Eckhard Schroder