Abstract: A lighting fixture includes a convertible shade which is supported relative to the light source to intercept light rays emitted by the light source in a selected direction or directions. The wall of the convertible shade has one or more wall inserts which can be selectively and easily secured to or detached from the convertible shade to alter the effect of the convertible shade on light rays from the light source which are directed at the location or locations of the wall insert(s) in the convertible shade without detaching the convertible shade from the shade supporting means. Preferably, the convertible shade is made of an opaque material while the insert(s) may be made of opaque, translucent or clear materials.
Abstract: A holiday helper lighting system (12) comprising a support frame (14). A plurality of illuminating units (16) are carried on the support frame (14) in spaced apart relationships. An assembly (18) integral with the support frame (14), is for carrying an electrical current to the illuminating units (16), so that the illuminating units (16) will provide light therefrom.
Abstract: A cathode ray tube comprising a vacuum enclosure including a glass panel 1 whose inner face is coated with a phosphor film 4 to form a screen; a neck portion housing an electron gun; and a funnel portion connecting the glass panel and the neck portion. A multi-layered anti-reflection, anti-electrostatic charge film formed on the outer face of the glass panel is constructed of a high refractive index film having a refractive index of 1.6 to 2.2 and a low refractive index film having a refractive index of 1.3 to 1.58. The high refractive index film is sandwiched between the outer face of the glass panel and the low refractive index film, and an unevenness having an average diameter of 5 to 80 .mu.m is provided at the interface between the high refractive index film and the low refractive index film. The interface has a height of 10 to 40 nm.
Abstract: A metal halide lamp in which the radiant efficiency is not adversely affected, in which outstanding color reproducibility is obtained, and which is suitable for a light source of an OHP or a direct projector is achieved, according to the invention, by the fact that, within an arc tube provided with a pair of electrodes, together with mercury and a starting rare gas, halides of dysprosium (Dy), yttrium (Y) and cesium (Cs) are encapsulated with the molar ratio of the encapsulated metals Dy to Y is being fixed in the range of 0.3.ltoreq.Dy/Y.ltoreq.1.0. In this way the green portion to which there is a sensitive visual reaction is reduced, the blue portion increased, and thus the color reproducibility is increased.
Abstract: An organic EL light emitting device has a light emitting layer between a cathode and an anode. Both the cathode and the anode are light transmissive. The cathode includes a conductor layer of a metal or alloy with a work function of up to 4 eV having a thickness of up to 10 nm on the light emitting layer side, a transparent electrode of zinc-doped indium oxide on a side remote from the light emitting layer, and optionally a buffer layer between the conductor layer and the transparent electrode. Light emission can exit from the device on both the cathode and anode sides.
Abstract: There is provided a very thin light guide plate for a surface light source device and a method of manufacturing it without the use of high-precision molding machine. A surface light source device using this light guide plate generates outgoing light having high uniformity. According to the manufacturing method, a light guide plate free from a weld line or warp can be manufactured with good transferring characteristics. The light guide plate is thick on an incident surface 1 side and thin on a lower surface 4 side. At the central portion of an incident surface 1 in a longitudinal direction, a projecting portion obtained by cutting an overhang portion 7 at a position a distance D apart from the incident surface 1 is formed. The cut surface of the projecting portion is not made specular and is kept rough. In molding of the light guide plate, a molten material is supplied from the position of a gate mark 9.
Abstract: A press seal-type lamp is provided in the form of a bulb portion and a press seal extending therefrom. The bulb portion contains at least one filament from which extends a first lead wire and a second lead wire. The first and second lead wires are sealed within and extend from the press seal. A length of each lead wire is folded over the press seal and caused to extend into a respective groove formed in the press seal.
Type:
Grant
Filed:
September 15, 1998
Date of Patent:
October 19, 1999
Assignee:
Osram Sylvania Inc.
Inventors:
Kenneth C. Fitzpatrick, Walter P. Ziske, Michael J. Gregorich
Abstract: A matrix-addressed electroluminescent display panel has lower electrodes and back electrodes orthogonally provided with each other through a luminescent layer and the like. A passivation layer is formed on the back electrodes on an opposite side of the lower electrodes with respect to the back electrodes, and back electrode leading members are formed on the passivation layer on an opposite side of the back electrodes with respect to the passivation layer to be electrically connected to the back electrodes. The lower electrodes have ends arranged on one side of a substrate, and the back electrode leading members are formed to have ends arranged on the same side of the substrate as the ends of the lower electrodes. Accordingly, terminals of the lower and back electrodes can be arranged on one side of the substrate, thereby preventing increase of the size of the display panel.
Abstract: A flexible decorative lamp system including a plurality of lamp strips and a plurality of connectors adapted to connect each two lamp strips in series, wherein each connector includes a cylindrical connector body having a longitudinal center through hole of triangular cross section, two terminal elements connected together and mounted in the connector body, and two screw caps respectively fastened to two opposite ends of the connector body to hold two lamp strips in connection to the terminal elements at two opposite sides; the lamp strips have a triangular cross section fitting the longitudinal center through hole of the cylindrical connector body.
Abstract: A heat-shrink band for a cathode ray tube (CRT) has a light weight, corrects the deformation of an object, such as a panel of a CRT due to the air pressure, effectively prevents implosion of the CRT, can suppress the color deviation, and in addition is excellent in formability. The method of fabricating the heat-shrink band includes a composition of cold rolled steel sheet such that the heat-shrink band offers both a high elongation characteristic at an ambient temperature and a high stress of yielding point characteristic after the heat-shrink process. The reduction of the weight of the heat-shrink band contributes to an overall reduction of the weight of the CRT.
Abstract: The innovative LED structure of the present invention mixes certain materials which can change the wave length of light in the resin of a LED and enables the LED to generate a white light and lights of various other colors as well. The shortcomings of conventional LEDs may be improved upon. By coating different fluorescent materials on the surface of a ultra violet light LED chip, it is possible to obtain a LED able to emit various colored light.
Abstract: A metallic halide lamp has an envelope of silica glass defining a discharge chamber with a pair of pinch seals extending in opposite directions therefrom. A pair of tungsten electrode stems are partly buried in the respective seals and electrically connected to a pair of molybdenum lead wires via a pair of molybdenum foils which are wholly embedded in the pinch seals. The molybdenum foils have a recrystallization grain size of not more than about 50 .mu.m.
Abstract: A polychrome lighting device, including at least one light source for each one of the three primary colors and elements for adjusting the light sources, the adjustment elements being adapted to independently control the adjustment of the luminous intensity of the light sources in order to combine the light beams emitted by the sources into a light beam having the desired shade of color, remote control elements being also provided for setting, storing, and retrieving desired luminous intensity values of the light sources and therefore desired light colors.
Abstract: The invention relates to an electric lamp based without cement, for instation in a reflector which is provided with an opening (17a) and made in the reflector wall (17). The lamp has a metal/plastic base which has a metal holder part (12) in which the bulb (10) of the lamp is fixed, a metal support sleeve (13) which is connected to the metal holder part (12), and a plastic base part (14) which is provided with the electrical connections (15) of the lamp and in which the support sleeve (13) is anchored. The lamp base has a plurality of reference lugs (14a), lying in a plane, which are used for holding and for correct installation of the lamp in the reflector. According to the invention, the plastic reference lugs (14a) are covered by metal cover tabs (13b) so that reference lugs (14a) are screened against the electromagnetic radiation generated by the lamp, or alternatively the reference lugs (43b) are made of metal.
Abstract: A plasma display panel includes a plurality of discharge cells formed with a plurality of partition walls arranged at fixed intervals between a front substrate and a rear substrate disposed in parallel spaced at a certain distance. A fluorescent material film is formed on a portion of an inside surface of each of the discharge cells. A discharge gas is sealed in each of the discharge cells and is converted into a plasma upon the occurrence of a discharge in each of the discharge cells. Each of the partition walls is formed with a stack of at least more than one permanent magnets magnetized with N and S poles for forming a magnetic field in the discharge cell.
Abstract: Pan assemblies for mounting of recessed lighting fixtures in ceilings and the like such as between structural joists, the invention primarily comprises pan frames formed of wire and strap stock shaped according to various embodiments of the invention into particular configurations capable of carrying standard cans or reflector housings, junction box structures and bar hangers inter alia for rough-in of downlighting fixtures. In preferred embodiments of the invention, the pan assemblies adjustably mount IC/non-IC cans which contain a source of illumination and appropriate trim inter alia, adjustable bar hanger assemblies usually being mounted by the pan assemblies with junction box structure being carried by the pan assemblies or connected directly to a can mounted by one of said pan assemblies.
Abstract: The illumination system (1) has a substrate (2) and an active layer (3) comprising an electroluminescent material, in which the active layer (3) is present between a first, optically transparent electrode layer (5) and a second electrode layer (7). The illumination system (1) is characterized in that a light-scattering layer (28) comprising a medium having light-scattering properties is present in a forward direction (29) with respect to the active layer (3), in which the non-scattered fraction of a (collimated) light beam, when passed through the light-scattering layer (8) in the forward direction (29), is in the range between 0.05 and 0.8, preferably in the range between 0.1 and 0.5. The light-scattering properties of the medium are preferably stronger as the light is more obliquely incident, as is achieved by using birefringent particles and/or media. A very suitable light-scattering layer (28) is a (half) monolayer of TiO.sub.
Type:
Grant
Filed:
October 10, 1997
Date of Patent:
September 21, 1999
Assignee:
U.S. Philips Corporation
Inventors:
Jeroen J. L. Horikx, Coen T. H. F. Liedenbaum, Martinus B. van der Mark, Adrianus J. M. Berntsen, Jeroen J. M. Vleggaar, Henri M. J. Boots
Abstract: A lighted planter includes a lighting assembly removably supported on the upper rim of a planter box. The planter box is sized to contain a flower or plant pot. The lighting assembly provides nested inner and outer frames, separated by an array of stained glass panels, defining a channel containing a wrap-around lighting element.
Abstract: A color display device is provided with a black-matrix layer, a phosphor pattern and color-filter layers. The theological behavior of the suspension and/or the evaporation of volatile constituents is influenced by the topology of the color-filter layers, with, in particular, projecting color-filter layers exerting an influence. As a result, variations in thickness between the phosphor layers occur. By reducing the differences in height between a projecting color-filter layer and the black-matrix layer, the variations in thickness between the phosphor layers are reduced and hence the quality of the picture displayed is improved.
Type:
Grant
Filed:
October 15, 1997
Date of Patent:
September 14, 1999
Assignee:
U.S. Philips Corporation
Inventors:
Arie R. Van Doorn, Godefridus P. Van Melis
Abstract: An OED with a first microcavity including a first transparent spacer positioned adjacent the diode light output and a first mirror stack positioned on the first spacer to reflect light back into the OED and to define an optical length of the first microcavity. The optical length of the first microcavity being such that light emitted from the first microcavity has a first spectrum. A second microcavity including a second transparent spacer positioned adjacent the first microcavity and a second mirror stack positioned on the second spacer to reflect light toward the first microcavity and to define an optical length of the second microcavity. The optical length of the second microcavity being such that light emitted from the second microcavity has a second spectrum. Additional microcavities can be placed in the structure to further enhance and alter the light spectrum.