Abstract: A light source unit is provided that is adapted for efficient cooling and for illumination of high luminance, and a projector including the same. A light source unit including a solid-state light source and a lens further includes a first fluid flowing in the vicinity of the solid-state light source thereby absorbing heat generated from the solid-state light source, and a second fluid flowing in the vicinity of the first fluid thereby absorbing the heat contained in the first fluid.
Abstract: A lighting system for a moving walkway or escalator installation and a moving walkway or escalator installation with a lighting system is disclosed. The moving walkway or escalator installation comprises a plate belt or step belt and a balustrade. The lighting system comprises a light-permeable inner panelling of the balustrade which is formed by one or more mutually adjoining plates free of interruption as well as one or more lighting bodies which are mounted in corresponding sockets. The sockets are fastened in the interior of the balustrade to a mechanical structure. The inner panelling of the balustrade can be illuminated over a whole area by the lighting system.
Abstract: A headlamp assembly for producing high and low beam patterns includes a housing having a reflector. The reflector includes high and low beam reflector surfaces. A light source is disposed within the housing for producing light rays projecting towards the high and low beam reflector surfaces. A plurality of shafts extends alongside the light source. A drive is operatively connected to the plurality of shafts for rotation thereof. A shield is connected to the plurality of shafts. Activation of the drive rotates the plurality of shafts to selectively move the shield between an open position, in which the light rays project towards and reflect off of the high beam reflector surfaces to produce the high beam pattern, and a closed position, in which the light rays project towards and reflect off of the low beam reflector surfaces to produce the low beam pattern while the shield blocks a portion of the light rays from projecting towards the high beam reflector surfaces.
Abstract: A lamp has projecting stud and resilient elements configured to lock the lamp into a reflector housing upon insertion of the lamp into an opening of the reflector and rotation of the lamp. Electrical connection is also achieved through the rotation where transverse lamp contact elements are brought into engagement with corresponding contacts of the reflector housing.
Abstract: A lighting fixture is disclosed that has two lights sandwiching a pivotable reflector. An upwardly directed lamp is mounted on the reflector to pivot therewith. The down lamp may also be mounted on the reflector to pivot therewith, albeit it need not be. A lower shade can enclose the down lamp. To replace the lower lamp one can pivot the reflector to provide access to the burnt-out lamp.
March 12, 2004
Date of Patent:
August 29, 2006
SPI Lighting, Inc.
Andrew J. Mauk, Andrew W. Shabica, Robert T. Allen
Abstract: A compact LED light source providing intensive LED positioning along with thermal dissipation can be made with a heat conductive plate supporting a plurality of LEDs mounted on the plate and in thermal contact with the plate. The plate further supports electrical circuitry providing electrical connection to the LEDs. A heat conductive stem mechanically supports the plate and may provide a thermal conduction path from the plate away from the LEDs. A high concentration of LED can then be conveniently mounted and held in close proximity for increased optical system intensity, while providing a thermal exit path for the associated increase in heat concentration.
Abstract: A string set of series-connected incandescent bulbs in which substantially all of the bulb filaments in the set are individually provided with a shunt circuit which includes a voltage responsive switch which is inoperative during normal operation of the string set when connected to a source of operating potential and which becomes operative only in response to an increase in the voltage thereacross which exceeds its rating, and in which the remaining bulbs of the circuit continue to receive current therethrough and continue to be illuminated at substantially constant illumination even though other or substantially all of the other bulbs in the string are either inoperative or are missing from their respective sockets.
Abstract: A light barrier and/or light reflector for PCB-mounted LED's has reflective walls defining interior chambers which redirect the light from the LED's in a substantially orthogonal direction and shield each LED from the light emitted by adjacent LED's. The device is particularly suited for redirecting light from LED's on a PCB to a status indicator panel thereby replacing conventional light pipes.
Abstract: The invention relates to a discharge lamp with a reflector (1) and an asymmetrical burner, which reflector (1) comprises at least a reflecting surface (3) and a hollow reflector neck (4), while the asymmetrical burner is partly arranged in said hollow reflector neck (4) without making contact therewith, wherein the shape and the size of the inner contour (6) of the reflecting surface (3) of the reflector (1) corresponds substantially to the contour of the asymmetrical burner, and the asymmetrical burner is centrally located in the reflector (1).
December 12, 2002
Date of Patent:
August 1, 2006
Koninklijke Philips Electronics N.V.
Nicasius G. T. Van Gennip, Michael Haacke, Thomas Luce, Petrus J. M. Fransen
Abstract: A chain shape illumination assembly is provided having a plurality of inter-connecting rings wherein each ring comprises a frame member defining a housing portion and a cover for said housing portion. At least one electrical lamp is secured in each housing and an electrical wire having one end electrically connected to each lamp and another end which passes through an opening in the ring and enters through an opening in an adjacent ring wherein it is connected to the lamp in said adjacent ring.
Abstract: A lighting fixture provides a substantially uniform line of light (bar of light) for illumination or signage. It uses a linear array of LEDs (light-emitting diodes) which are relatively efficient, long-lasting and resistant to damage from vibration. The LEDs are arranged within a reflective shell within the fixture and one or more elongated cylindrical focusing lenses are positioned at a specific distance in front of the LEDs to focus the light into a line of light. A focusing lens may also be the protective window of the reflective shell.
Abstract: An instrumented garment is disclosed. The garment includes a vest portion, comprising a front portion and a rear portion. The garment further includes a first light emitting device disposed on the rear portion and a second light emitting device disposed on the rear portion. The first light emitting device is capable of receiving a first signal, provided by a vehicle comprising one or more wheels. The second light emitting device is capable of receiving a second signal provided by that vehicle.
Abstract: A vehicle light includes several light source units positioned on different planes, each of which light source units has a light emitting diode, and a transparent convex covering part formed with a refraction side facing the light emitting diode; when light from one of the light emitting diodes travel through the corresponding convex covering part, the corresponding refraction side can make it change direction; therefore, when the light source units are positioned such that the refraction elements are in various orientations, light from the present vehicle light can he diverted into different directions by means of the refraction elements. In other words, when being activated, the vehicle light will produce light whose form depends on orientations of the refraction elements of the light source units.
Abstract: A rotation-controlled device for controlling actuation and de-actuation of the lamp comprises an upper cover; an arc strip protruded from an inner surface of the upper cover; a seat installed below the upper cover by using a connector; a button installed to the seat and resisting against the arc strip; the button being pushed to rotate by the arc strip; and a light adjuster installed below the button and aside the locking piece; the actuation of the light adjuster being controllable by the button. A bearing is installed below the upper cover and between the connector and the upper cover. A bottom cover is installed below the seat. The arc strip has teeth and the button has teeth. The one side of the arc strip has a sticky surface and a periphery of the button has another sticky surface.
Abstract: Cold cathode tube 22 is covered with lamp reflector 31. An edge portion on the side of incident light surface 26a of light guide 26 is interposed between upper and lower edge portions 31a and 31b of lamp reflector 31. Reflection sheet 29 is attached to the back surface 26b of light guide 26. Reflection sheet 29 is fixed on the front surface of frame 32 by adhesive tapes 41 for electric insulation. An interposing width of “A” where the edge portion on the side of incident light surface 26a of light guide 26 is interposed between upper and lower edge portions 31a and 31b of lamp reflector 31, which is larger than a gap of “B” defined between step portion 35 of frame 32 and edge 26d of light guide 26. With the structure arranged above, the edge portion on the side of incident light surface 26a of light guide 26 is firmly held between upper and lower edge portions 31a and 31b of lamp reflector 31.
Abstract: A dual mode or multimode backlight containing LEDs as a light source. The backlight has light cavity containing a reflective material. The cavity has an opening to allow light to be directed to a display source such as a liquid crystal display (LCD). Two sets of LEDs are provided, one set for day mode and one set for night mode. The night mode LEDs is fitted with an NVIS filter. The day mode LEDs is fitted with a filter that suppresses the phosphorescence from the day mode LEDs. The filter suppress the IR energy and allows maximum luminance from the day mode LEDs. During night mode operation, the backlight is flooded with light. Filtered light from the NVIS LED's would impinge on the day mode LED's causing them to phosphoresce. The filter over the day mode LEDs removes the infrared energy from the phosphorescent light emitted from the day mode LEDs.
November 3, 2003
Date of Patent:
April 11, 2006
Honeywell International Inc.
William T. Campbell, Randy M. Maner, Steven A. Grossman
Abstract: An illuminable apparatus including a thematic structure configured with an operably closed chamber and defining an opening extending between an exterior of the structure and the operably closed chamber. A light source is arranged within the operably closed chamber of the structure, and an electric circuit operably connects the light source to a power source to allow the light source to provide luminescence viewable through the opening in the structure. The electric circuit includes a sensor for sensing motion of air passing through the opening in the structure, and further includes a light source control apparatus connected to the sensor for controlling the luminescence provided by the light source. The light source control apparatus is configured to change the luminescence provided by the light source when the motion of air is sensed through the opening in the structure. A method of operating such an illuminable apparatus to produce controlled levels of illumination is also provided.
Abstract: A halogen lampholder includes a base, a locking spring, two clipping members, two sliding members, a bottom cover, an outer shell and an outer ring. The base is assembled with the locking spring, the clipping members and the sliding members and then, with the bottom cover and the outer shell orderly. The base has a vertical plugging chamber for a fitting portion and two conducting teeth of a lamp to plug in. The locking spring clamps the fitting portion of the lamp. The clipping members connect with the conducting teeth. The sliding members are placed in the base to restrain the locking spring. The bottom cover restrains the locking spring and the clipping members. The outer shell covers the bottom cover, combined with an outer ring and a power-wire tube for a power wire to pass through and reach the clipping members.
Abstract: A headlight lamp has at least one lamp vessel in which at least one luminous element is enclosed, and a lamp base, which is provided with the electric terminals of the headlight lamp. The base has an annular metallic holder in which the at least one lamp vessel is fixed, and at least three reference noses arranged in a common plane, and an annular base flange arranged parallel to the plane of the reference noses. The base flange has at least three lugs are arranged along its circumference, which are of resilient design and serve together with the reference noses for fastening the lamp in a headlight. The reference noses are integrally formed on a reference ring, which is connected to the annular metallic holder and to the base flange.
August 13, 2002
Date of Patent:
February 28, 2006
Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH
Abstract: A novel lighting assembly that incorporates a high brightness light emitting diode (LED) in a compact assembly for further integration into a lighting device is provided. The lighting head assembly of the present invention provides several novel aspects that are all closely integrated to provide a unique assembly for incorporating a high brightness LED into a lighting device. In particular, the head assembly utilizes a receiver sleeve that includes a non reflective coating to provide a high level of contrast between the lighting element and the interior region surrounding the lighting element. Further, an optical element is coupled to the receiver to capture an image of the lighting element to provide a sharp, uniformly illuminated image in the far field of the device.