Patents by Inventor Petrus G. J. M. Nuyens

Petrus G. J. M. Nuyens 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).

  • Optical transmissive component with anti-reflection gratings
    Patent number: 5694247
    Abstract: An optical transmissive component (1) is described, which component has an entrance surface (4) and an exit surface (5) for optical radiation (20), in which one of the surfaces (4; 5) is provided with an anti-reflection grating (10; 15). By providing a second surface, (5; 4) with a second anti-reflection grating and by ensuring that the grating strips (11) of the first grating (10) extend essentially perpendicularly to those (16) of the second grating (15) in corresponding areas of the first and the second surface (4; 5), it is prevented that the component is birefringent.
    Type: Grant
    Filed: May 1, 1995
    Date of Patent: December 2, 1997
    Assignee: U.S. Philips Corporation
    Inventors: Willem G. Ophey, Johannes J. Baalbergen, Johannes M. Oomen, Petrus G. J. M. Nuyens