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7494252 |
Compact luminaire enclosure
The invention generally comprises a compact luminaire enclosure that preferably contains about 14 to 18 cubic inches of air volume and can be used safely with a 50 watt luminaire. The luminaire...
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7205789 |
Termination arrangement for high speed data rate multi-drop data bit connections
A circuit for terminating devices attached to a signal line and driving a load includes a resistor R 1 in series with the signal line circuit CR 1 having a resistor in series with a switch...
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7083287 |
Tilt detection in illumination source
A method of monitoring an illumination source including a reflector and a lamp. A reference orientation is defined where the reflector and a light producing luminary of the lamp are aligned to...
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6570327 |
Lamp with safety switch
The invention relates to an electric lamp ( 100 ) whose light source reaches a very high temperature during operation. It mainly relates to a lamp provided with a double envelope such that a...
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6418191 |
X-ray apparatus and line connection therefor
X-ray apparatus has a d.c.-a.c. converter circuit supplied with energy that is connected via a line connection to a high-voltage transformer supplying the high-frequency operating voltage to an...
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6297585 |
Fluorescent lamp with thermal protection element manufacturing method for the fluorescent lamp and a lighting apparatus using the same
A fluorescent lamp includes an end cap 4 and a fluorescent tube 1 that has electrode seals 22 and 23 at its ends. The end cap 4 is made of synthetic resin and is attached to the fluorescent tube 1...
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6217195 |
Lamp with safety shutoff features
A lamp with improved safety features, to avoid fire and burn hazards, includes an electrical circuit having a thermostat connected in series with the bulb of the lamp. The thermostat is mounted in...
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6186643 |
Modular electrical assembly for ornamental luminaire
A modular ornamental luminaire assembly including a luminaire electrical chamber, an ornate cover, and an electrical assembly which is easily affixable or removable from the ornate cover. The...
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6099145 |
Enhanced MTBF backlight system and related method
A first backlight light source is energized either at full or reduced rated power, until such time as the brightness which can be produced has reduced by a predetermined amount (e.g. half of the...
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6099135 |
Surface light source element and liquid crystal display device, sign device and traffic control sign device using same
A surface light source device, comprising a light source (2); a light conductor (1) which has a light incident face (11) on at least one side end surface thereof which confronts the light source...
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5842765 |
Tricolor lighting system
A tricolor lighting system uses first and second dichroic filters or mirrors to separate light into different colors, primarily red, green, and blue. The light is directed into input ends of...
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5842767 |
Highly efficient illuminator and method of use thereof
Systems and methods for high efficiency illuminators are described. An illuminator includes an elliptical reflector defining a first focal point, a second focal point, a first focal plane and a...
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5578905 |
Flow-responsive air purged portable electric lamp
A portable electric lamp suitable for use in hazardous locations includes a fixture which is purged continuously with air during operation. Pressurized air is introduced at an input end of the...
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5526249 |
Light source device
A light source device including a lamp-exchanging door which is attached/removed when a lamp is replaced and an electrode-connection/separation arrangement for making connection/separation between...
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5519587 |
Air purged portable electric lamp
A portable electric lamp suitable for use in hazardous locations has the fixture purged with breathable air a predetermined time before power is coupled to energize the lamps. The fixture is...
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5400223 |
Sports lighting luminaire having a broken glass safety shutdown circuit
A sports lighting fixture having a broken glass detection arrangement includes a high intensity light source disposed near the closed end of a reflector member. A cover member made of a light...
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5289352 |
Headlamp for motor vehicles
A headlamp for motor vehicles has a reflector, a gas discharge lamp, a front plate covering a light exit opening of the headlamp, and a filter arranged in a beam path of light beams reflected by...
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2955195 |
Portable safety lamp
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2930886 |
Flashlight
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