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| Number | Title | Issue Date |
| 7946729 | Fluorescent tube replacement having longitudinally oriented LEDs An LED-based light for replacing a conventional fluorescent tube in a fixture is provided. The LED-based light includes an elongate light transmitting rod defining a bore and at least one LED positioned at one or both ends of the rod and oriented to produce light lo... | 05/24/2011 |
| 7175305 | LED symbol signal A LED symbol signal with LEDs arrayed to correspond to a desired symbol. A mask defines the desired symbol. A diffusion surface on the cover diffuses the display aspect, obscuring the individual LEDs. The mask is spaced a distance from the diffusing surface. The mor... | 02/13/2007 |
| 6929380 | Candle holder adapter for an electric lighting fixture An adapter for converting an electric light fixture into a candle-burning chandelier. A candle holder adapter includes a cavity at the bottom which fits over and is retained by the vertical light bulb socket support. The candle holder may include an wax catching tra... | 08/16/2005 |
| 6929605 | Light source device with dual alternately-directed lamps that facilitate lamp replacement A light-source device for an endoscope includes a housing, first and second lamps, and first and second movable lamp mounting sections. The first movable lamp-mounting section is transferable with respect to the housing between first and second lamp positions. The s... | 08/16/2005 |
| 6715895 | Luminaire body for a medical light, and the use thereof A luminaire body for a surgical operation light with an annular reflector has at least two electric light bulbs, a first bulb of which with its socket is associated in normal operation with a given centered position (with respect to the reflector) in the stationary ... | 04/06/2004 |
| 6582102 | Fluorescent lamp connector adapter with conversion circuit An electronically combined fluorescent light structure including two connecting seats with respective light tube sockets and terminals disposed at the front and the rear end of the connecting seats, an electronic starting circuit mounted inside the connec... | 06/24/2003 |
| 6572242 | Illuminator for a signal lamp An illuminator, in particular for a signal lamp, having at least one LED which is mounted on an LED printed circuit board is provided which permits uncomplicated and flexible production. A base housing of the illuminator is produced from plastic. The base... | 06/03/2003 |
| 6476559 | Ceremonial luminary and associated process A ceremonial illuminary including a voltage supply mechanism, a switching mechanism that is electrically connected to the voltage supply mechanism, a first lamp electrically connected to the switching mechanism, a second lamp electrically connected to the... | 11/05/2002 |
| 6082864 | Project or having a self-aligning replaceable projection lamp mechanism A liquid crystal display projector for projecting images on a screen. The projector includes a projector body and an optical projection system positioned generally within the projector body. A releasable first self-aligning lamp socket for receiving a fir... | 07/04/2000 |
| 5676452 | Operating lamp with main bulb and replacement bulb An operating lamp has at least one main bulb 11 arranged at a desired position 13 and a replacement bulb 12 arranged at a waiting position 14 located close the desired position 13. The main bulb 11 and the replacement bulb 12 are displaceably mounted and ... | 10/14/1997 |
| 5570239 | Directional screen for a lighting fixture and method of making same A directional light screen and method of making the same are provided. The directional screen includes a plurality of transparent carrier members having opposing sides, the carrier members being arranged in a side-by-side manner. Thin lamellae can be plac... | 10/29/1996 |
| 5406461 | Illumination system for optical equipment with separate illuminating beam paths An illumination system for optical equipment, such as an operating microscope, includes at least two separate illuminating beam paths, a first light source, and a lamp housing. At least one additional light source is provided on a rotatable lamp quick-cha... | 04/11/1995 |
| 5371661 | Retro-fit lighting fixture and method of retro-fitting A lighting fixture retrofitting apparatus for retrofitting old technology lighting tube fixtures, with smaller high efficiency lighting tubes, and having a lamp socket housing attachable to the existing ballast cover plate of an existing lighting fixture,... | 12/06/1994 |
| 5301094 | Lamp changing assembly for overhead projector A lamp changer assembly for an overhead projector includes a reflector bracket and a lamp support bracket mounting two lamps. The reflector mounting bracket includes a slot and the lamp support bracket has attached thereto a slide which rides in the slot.... | 04/05/1994 |
| 5296883 | Lamp changing system in LCD projector A lamp changing system is an LCD projector, comprising a reflective facet, a rotary plate having a plurality of arc-tubes and blocks disposed thereon, and a cam member having an upper cam and a lower cam, whereby upon rotating the cam member, an old arc-t... | 03/22/1994 |
| 5178446 | Centralized lighting system for a vehicle having a central light source automatically exchangable in the event of failure The lighting device has a central reflector (10), in which a first light source (11) is located in the operating position. A light guide (11) extends from the light source in the operating position and conducts light issuing directly from the light source... | 01/12/1993 |
| 5174648 | Lighting fixture support assembly An apparatus for supporting a primary lamp and a secondary lamp is disclosed. The apparatus comprises primary and secondary brackets, and primary and secondary sockets. The primary socket is affixed to the primary bracket, and receives the primary lamp, p... | 12/29/1992 |
| 5134554 | Lighting system A lighting system comprising a power jack, a first or second type plug connector and luminaire assembly. The power jack is adapted to receive either a first or second type plug connector. The luminaire assembly includes a lamp socket subassembly, and a gl... | 07/28/1992 |
| 5034866 | Multilamp strip light luminaire system A multilamp strip light luminaire system for illuminating a portion of a stage for an audience, including a housing forming a compartment having front wall defining a lamp port, a lamp positioned in the compartment having a light beam directed at the lamp... | 07/23/1991 |
| 5032962 | Redundant lamp mechanism A mechanism for positioning one of a plurality of lamps, each carried by a lamp socket, at a desired focal point of an optical system is comprised of a first lamp socket positioned in an operative position such that a lamp carried by that socket will be a... | 07/16/1991 |
| 4975810 | Light source Light source for providing light to fibre optic medical instruments and the like, source including dual lamps for alternate use and an efficient cooling system.... | 12/04/1990 |
| 4956756 | Table lamp adapter system The present invention provides a table lamp adapter system for providing interchangeability between incandescent and fluorescent light bulbs. There is provided a table lamp system which includes a detachable lamp holder tubular housing 1 in combination wi... | 09/11/1990 |
| 4954938 | Light with wide angle radiation pattern A warning light having a wide angle radiation pattern and the ability to accept either an incandescent lamp or gaseous discharge tube as the light source is disclosed. The wide angle radiation pattern is, in part, achieved through the use a reflector havi... | 09/04/1990 |
| 4855875 | Light source device for medical apparatus A light source device for use in a medical apparatus has a turnable or linearly movable member or flange provided in a housing, and an actuator removably attached to the movable flange and carrying two light sources thereon. The actuator has two connector... | 08/08/1989 |
| 4807099 | Lighting fixtures A fluorescent light fixture is provided which is suitable to be interchangeable with an incandescent lighting fixture recessed in a ceiling which includes a connector plug adapted to be inserted in a conventional incandescent lamp socket extending from a ... | 02/21/1989 |
| 4802065 | Emergency lighting fixture An emergency lighting fixture for mounting in a ceiling and particularly a suspended ceiling, which includes a drop down panel normally closing an opening in the ceiling and an electric lamp concealed behind the panel. If a.c. power should fail, the panel... | 01/31/1989 |
| 4706171 | Containment shield for a replaceable xenon lamp and reflector module A containment shield for a replaceable Xenon lamp and reflector module provides a safe, simple means of replacing and handling an arc lamp (10) for a light valve projection system. Guides (93, 94) are provided which act as a means of positioning and allow... | 11/10/1987 |
| 4539625 | Lighting system combining daylight concentrators and an artificial source A combined lighting system for a building interior includes a stack of luminescent solar concentrators (LSC), an optical conduit made of preferably optical fibers for transmitting daylight from the LSC stack, a collimating lens set at an angle, a fixture ... | 09/03/1985 |
| 4536830 | Reflector assembly for lamp fixtures A reflector assembly for replacing a fluorescent lamp from a multi-lamp fixture having a top wall and oppositely disposed end and side walls enclosed by a diffuser plate. The assembly includes a reflector member extending longitudinally between the end wa... | 08/20/1985 |
| 4518896 | Dual voltage lighting fixture A dual voltage lighting fixture for permiting the interchangeable use of light bulbs having substantially different operating voltages. The apparatus includes a housing to which is mounted a standard sized light bulb socket and a connector. A transformer ... | 05/21/1985 |
| 4504894 | Lighting unit for providing indirect light A lighting unit for indirect illumination of an area. The unit has a reflective surface contoured to direct reflected light rays from a source generally upward at predetermined angles for reflection by a surface above the lighting unit providing a symmetr... | 03/12/1985 |
| 4450510 | Incandescent-fluorescent compatible lighting products Ordinary incandescent lighting products, such as table lamps, floor lamps, ceiling fixtures, etc., are designed to be used with regular screw-in incandescent lamps, and can not be used with non-self-ballasted fluorescent lamps--even if these had been furn... | 05/22/1984 |
| 4446507 | Automobile headlight control system The present invention provides a lighting system for use on a vehicle with the system including two sets of low beam driving lights and switching circuits for switching from one set to the other in the event of one of the sets failing.... | 05/01/1984 |
| 4415951 | Lampchanger A lampchanger preferably for use in a railroad signal lantern having a focusing lens which includes a horizontally rotatable turret adapted to support a plurality of lamps for indexing one of the lamps to the focal point of the lens. The turret includes a... | 11/15/1983 |
| 4414611 | Portable light A portable light having a housing which can be selectively mounted onto a support surface. A socket is supported on the housing and holds a bulb in a position externally visible from the housing. An externally manipulatable switch is provided on the housi... | 11/08/1983 |
| 4410929 | Linear motion switch assembly particularly adapted for use with fiber optic light sources A linear switch assembly comprises a planar plate secured to the inner wall of a housing for a light source. A carriage member has a first slot positioned within the edge of the plate member and a second shorter slot on a top adjacent surface. The plate h... | 10/18/1983 |
| 4403275 | Wattless lamp assembly A multi-lamp fluorescent fixture including one or more reflecting assemblies introduced into the fixture in place of removed fluorescent lamps and configured to redirect outwardly from said fixture to the areas intended to be illuminated a substantial por... | 09/06/1983 |
| 4402038 | Automatic lamp bulb changer for signal lamps In order to provide for automatic replacement of lamp bulbs (lamps) when they fail to illuminate and to enhance the reliability of signal lamps, such as those which signal oncoming trains as they move along railway tracks, a plurality of lamps are dispose... | 08/30/1983 |
| 4349863 | Emergency lighting system A lighting system for supplying AC power normally, and DC power on an emergency basis selectively, to electron discharge devices, particularly fluorescent lamps; thus, the AC or DC power is furnished over common lines to a high frequency inverter associat... | 09/14/1982 |
| 4281365 | Variable photoelectric cell An illumination control device for regulating the illumination in a controlled lighting area responds to natural illumination to control artificial lighting. The illumination control device turns the artificial light on and off at independently variable n... | 07/28/1981 |
