Patents Represented by Attorney, Agent or Law Firm Brice Faller
  • Patent number: 6222318
    Abstract: Low-pressure mercury vapour discharge lamp is provided with a discharge vessel (10) and a first and a second end portion (12a; 12b). The discharge vessel (10) encloses a discharge space (13) provided with a filling of mercury and a rare gas in a gastight manner. Each end portion (12a; 12b) supports an electrode (20a; 20b) which is arranged in the discharge space (13). Current supply conductors (30a, 30a′; 30b, 30b′) extend from the electrodes (20a; 20b) through the end portions (12a; 12b) to outside the discharge vessel (10). A UV-reflecting shield (15a; 15b) is positioned in the space between the electrodes (20a; 20b) and the end portions (12a; 12b), thereby protecting the end portions (12a; 12b) from the creation of reactive sites in the end portions (12a; 12b) at which reactive sites mercury is bound. Preferably, the shield (15a; 15b) is attached to the current supply conductors (30a, 30a′; 30b, 30b′). The lamp according to the invention has a comparatively low mercury consumption.
    Type: Grant
    Filed: February 9, 1999
    Date of Patent: April 24, 2001
    Assignee: U.S. Philips Corporation
    Inventors: Emmanuel W. J. L. Oomen, Adrianus J. H. P. Van Der Pol, Leonie M. Geerdinck
  • Patent number: 5869128
    Abstract: Method for manufacturing a glass substrate with reduced glare wherein a suspension comprising sub-micron transparent oxide particles and a binder is coated on the substrate to form a film, whereafter the film is dried in such manner that in situ flocculation of the particles takes place. Said in-situ flocculation strongly reduces glare on the said surface.
    Type: Grant
    Filed: December 21, 1995
    Date of Patent: February 9, 1999
    Assignee: U.S. Philips Corporation
    Inventors: Gijsbertus H.W.M. Meulendijks, Sebastianus N.G. Cuppen, Hendrikus L. Vandijck, Johannes M.A.A. Compen
  • Patent number: 4939414
    Abstract: An improved picture sensitivity to the magnetic field produced by a field deflection coil (28) for an in-line gun shadow mask display tube is obtained by positioning magnetic field conducting elements (32, 34) within the envelope of the display tube in the central deflection area of the field produced by the field coil (28). By positioning the magnetic field conducting elements (32, 34) inside the envelope, the distances between the elements (32, 34) and the yoke ring (30) and between the elements (32, 34) and the field coil (28) are such that the unnecessary flux is significantly less compared to a known situation in which these elements are located between the line and field coils, thus improving the field deflection sensitivity.
    Type: Grant
    Filed: March 1, 1988
    Date of Patent: July 3, 1990
    Assignee: U.S. Philips Corporation
    Inventor: Albertus A. S. Sluyterman