Patents by Inventor Antonius H. P. M. Peels

Antonius H. P. M. Peels 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).

  • Color display tube
    Patent number: 4900980
    Abstract: The astigmatism of the electron beams (6, 7, 8) generated by an electron gun system (5) are substantially reduced by constructing the lens electrode components (25, 26) between which a focusing lens is formed in an operating electron gun to be inverted replicas of each other. The lens electrode components should be provided with the corresponding sides (45, 46) facing each other and with the corresponding apertures (38, 42) opposite to each other.
    Type: Grant
    Filed: November 25, 1985
    Date of Patent: February 13, 1990
    Assignee: U.S. Philips Corporation
    Inventor: Antonius H. P. M. Peels
  • Color display tube
    Patent number: 4678964
    Abstract: A field correction element (30) is provided in the peripheral field of a focusing lens of an electron gun system of a color display tube to reduce the potential differences between the electrodes of the focusing lens necessary for horizontal and vertical focusing, respectively. The field correction element (30) consists of a plate (31) which extends substantially perpendicularly to the electron beams and has elongate or square apertures (32, 33, 34) through which the electron beams (6, 7, 8) pass. It is also possible to perform convergence corrections by means of such a field correction element.
    Type: Grant
    Filed: January 17, 1986
    Date of Patent: July 7, 1987
    Assignee: U.S. Philips Corporation
    Inventor: Antonius H. P. M. Peels
  • Color display tube wtih overlapping field lens having a field correction plate
    Patent number: 4668892
    Abstract: A color display tube has an electron gun system (5) with focusing lens electrodes (25, 26) producing overlapping lens fields. Correction of the overlapping lens fields is accomplished by means of at least one field correction plate (35, 36) which extends substantially perpendicularly to the beam axes and has elongate and/or square apertures (38, 39, 40) through which the electron beams pass.
    Type: Grant
    Filed: February 24, 1986
    Date of Patent: May 26, 1987
    Assignee: U.S. Philips Corporation
    Inventor: Antonius H. P. M. Peels
  • Cathode-ray tube
    Patent number: 4620134
    Abstract: The spot quality of an electron beam produced by an electron gun in a cathode ray tube is improved by optimizing the dimensions of a beam-forming, apertured electrode arrangement in the gun. This arrangement includes electrodes for forming a cross-over followed by, in the direction of propagation of the electron beam, first and second lens electrodes centered around an axis, for defining an accelerating and prefocusing lens and at least two lens electrodes for defining a main focusing lens. The diameter of the aperture in the second lens electrode is smaller than twice the diameter of the aperture in the first lens electrode, and the effective spacing S-eff between the first and the second lens electrodes is smaller than 1 mm. S-eff is defined as the minimum of the function ##EQU1## where .DELTA.
    Type: Grant
    Filed: October 21, 1983
    Date of Patent: October 28, 1986
    Assignee: U.S. Philips Corporation
    Inventors: Antonius H. P. M. Peels, Antonius J. M. van den Beld, Jan Bijma, Jan Gerritsen