Patents by Inventor Theodorus Franciscus Mattheus Maria Maas

Theodorus Franciscus Mattheus Maria Maas 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).

  • Luminaire
    Patent number: 6478453
    Abstract: A luminaire for projecting an image comprises a housing (1) having a light emission window (2). The housing (1) accommodates a light source (3), an optical system (4) for directing light originating from the light source (3) along a longitudinal axis (5), and an image-forming surface (6) which is positioned orthogonally with respect to the longitudinal axis (5). According to the invention, the light source is a LED (3), and the optical system (4) comprises a collimating element (14) for collimating the light originating from the LED (3). Preferably, the luminaire comprises only one LED (3) which, during operation, has a luminous flux of at least 5 lm. Preferably, the housing (1) also comprises a focusing lens (15) for focusing the collimated light originating from the collimating element (14) on the image-forming surface (6) and, preferably, a projection lens (7, 7′) for projecting an image of the image-forming surface (6). Preferably, parts of the collimating element show total internal reflection.
    Type: Grant
    Filed: January 3, 2001
    Date of Patent: November 12, 2002
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Liane Lammers, Johannes Petrus Maria Ansems, Antonius Johannes Maria Van Hees, Theodorus Franciscus Mattheus Maria Maas
  • Luminaire
    Publication number: 20010007527
    Abstract: A luminaire for projecting an image comprises a housing (1) having a light emission window (2). The housing (1) accommodates a light source (3), an optical system (4) for directing light originating from the light source (3) along a longitudinal axis (5), and an image-forming surface (6) which is positioned orthogonally with respect to the longitudinal axis (5). According to the invention, the light source is a LED (3), and the optical system (4) comprises a collimating element (14) for collimating the light originating from the LED (3). Preferably, the luminaire comprises only one LED (3) which, during operation, has a luminous flux of at least 5 lm. Preferably, the housing (1) also comprises a focusing lens (15) for focusing the collimated light originating from the collimating element (14) on the image-forming surface (6) and, preferably, a projection lens (7, 7′) for projecting an image of the image-forming surface (6). Preferably, parts of the collimating element show total internal reflection.
    Type: Application
    Filed: January 3, 2001
    Publication date: July 12, 2001
    Applicant: U.S. Philips Corporation
    Inventors: Liane Lammers, Johannes Petrus Maria Ansems, Antonius Johannes Maria Van Hees, Theodorus Franciscus Mattheus Maria Maas