Mean Free-path Spacing Patents (Class 313/598)
  • Patent number: 8686638
    Abstract: A lighting device having a plurality of light sources includes several superimposed layers. The superimposed layers include a first and a second electrically conductive layer, which are designed so as to create an alternating electrical field between the layers. The superimposed layers also have an electrically insulating layer between the electrically conductive layers and a luminescent layer between the electrically conductive layers. Electroluminescent material is arranged within the luminescent layer in several adjacent and spatially separated regions, each region forming a light source. As a result, a simulated starry sky may be provided when the lighting device is used with an aircraft interior trim panel.
    Type: Grant
    Filed: June 21, 2010
    Date of Patent: April 1, 2014
    Assignee: Airbus Operations GmbH
    Inventors: Alexandra Marwede, Ronny Dehmel
  • Patent number: 8604693
    Abstract: To provide a plasma display device whereby it is possible to improve the image quality and at the same time to reduce warpage of a thin cover glass plate having a large area. A plasma display device 10 is provided which comprises a plasma display panel 20 provided with glass substrates 21, 22, and a cover glass plate 30 bonded to the display side of the plasma display panel 20, wherein the cover glass plate 30 has a diagonal length of at least 81 cm and a thickness of at most 1.5 mm, and the average thermal expansion coefficient of the cover glass plate 30 is from 80 to 120% of the average thermal expansion coefficient of the glass substrates 21, 22 within a range of from 50 to 350° C.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: December 10, 2013
    Assignee: Asahi Glass Company, Limited
    Inventors: Kazutaka Ono, Shusaku Akiba, Yuichi Kuroki
  • Patent number: 8016448
    Abstract: The display device includes: a display panel that displays an image; and a backlight that is disposed on a back surface of the display panel and emits light from the back surface of the display panel. The backlight includes: an output member that outputs incoming light to the display panel; and a light source that emits light to the output member from a side of the output member. The light source includes: plural board-shaped substrates that each have a light-emitting element mounted on a surface thereof; and a wiring board that is in contact with a side surface of each of the plural board-shaped substrates to hold, in an upright position, the plural board-shaped substrates which are arranged in a line, and that is arranged so that the each light-emitting element faces the side of the output member while the wiring board is electrically connected to the plural board-shaped substrates.
    Type: Grant
    Filed: August 27, 2008
    Date of Patent: September 13, 2011
    Assignee: Showa Denko K.K.
    Inventors: Kenji Shinozaki, Shuji Gomi, Masataka Yokomizo
  • Patent number: 7161301
    Abstract: A nitride light-emitting device having an adhesive reflecting layer includes a transparent adhesive layer, a nitride light-emitting stack layer and a metal reflecting layer. The transparent adhesive layer adheres the nitride light-emitting stack layer and the metal reflecting layer. Therefore, the metal reflecting layer can reflect light emitted from the light-emitting stack layer to increase the brightness of the nitride light-emitting device.
    Type: Grant
    Filed: October 29, 2003
    Date of Patent: January 9, 2007
    Assignee: Epistar Corporation
    Inventors: Min-Hsun Hsieh, Wen-Huang Liu, Ming-Jiunn Jou
  • Patent number: 4888518
    Abstract: A structure associated with a ceramic envelope gas filled electron tube whereby a series of concentric holes are formed through grid radiator rings which thus simulates the outer neutral gas region of a typical glass envelope tube structure. In this manner, one has created a neutral non-ionized gas flow path which shunts the main discharge in such a thyratron and which is contained within the metal internal axial structure. The apertures, as formed in the grid radiator rings, thereby provide a source path for neutral molecular hydrogen from the gas reservoir located at the base of the tube to allow the gas to be directed to the anode/grid region of the tube, where electrons are pumped and the gas is collisionally ionized. The effect serves to enhance the maximum thyratron operating frequency by allowing cool neutral gas molecules to flow into the gap region through the parallel path and then into the discharge volume of the ceramic thyratron tube.
    Type: Grant
    Filed: November 16, 1987
    Date of Patent: December 19, 1989
    Assignee: ITT Corporation
    Inventor: Henry C. Grunwald