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...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.

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Class 362/800 - LIGHT EMITTING DIODE


Subclass of Class 362 - Illumination
Definition: Devices including a potential barrier between two materials,
No. of patents: 1858
Last issue date: 05/29/2012


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NumberTitleIssue Date
7163318Illuminator assembly
An apparatus that includes a lens having a light entrance end forming a recess, a heat sink having an end portion facing the recess, and a light source positioned to transmit light via the recess into the lens. The light source is in thermal communication with the h...
01/16/2007
7163302Camera-mounted semiconductor lighting apparatus
A lighting effects system comprises an arrangement of lamp elements, such as light-emitting diodes (LEDs) or other light elements, on a panel or frame. The panel or frame may be relatively lightweight, and may include one or more circuit boards for direct mounting o...
01/16/2007
7159997Linear lighting apparatus with increased light-transmission efficiency
The present invention provides for a linear lighting apparatus. The apparatus includes a plurality of light emitting diodes, a primary optical assembly, and a secondary optical assembly. The light emitting diodes produce light towards the primary optical assembly. T...
01/09/2007
7160007License plate light
A license plate light includes a bottom base, an intermediate member, a support frame, a light base and a light cover. The bottom base is fixed with an automobile body or the license plate, and the intermediate body is fixed on the bottom base. The support frame is ...
01/09/2007
7157839Phosphor based light sources utilizing total internal reflection
A LED package including an LED that emits excitation light at an excitation light wavelength and a layer of phosphor material positioned to receive the excitation light and having a first index of refraction at the excitation light wavelength. The phosphor material ...
01/02/2007
7157866Light emitting element driving device and portable apparatus equipped with light emitting elements
A driving device for driving multiple (R-, G-, and B-) groups of LEDs operative at different voltages, utilizing a battery supplying a power supply voltage of a step-up voltage. Under normal operating conditions, R-LEDs are driven by the battery voltage, but G- and ...
01/02/2007
7158020LED warning beacon
A warning beacon includes a transparent housing, having a triangular shape suggestive of a warning sign, the housing having a front face, a back face, and side edges. A mounting plate is disposed within the housing between the front and back faces, and a plurality o...
01/02/2007
7152996Diode lighting system
A lighting system for stage, theatrical and architectural lighting, comprising a frame for supporting a plurality of light emitting diodes. The diodes are mounted to the frame so that each diode is both secured to the frame and also simultaneously positioned wherein...
12/26/2006
7153013LED warning signal light and moveable row of LED's
A light emitting diode (LED) warning signal light, the warning signal light comprising a plurality of light sources constructed and arranged with a reflector or cullminator, the LED light source being in electrical communication with a controller and a power supply,...
12/26/2006
7153008Conversion cradle incandescent lamp to LED lamp
A LED lamp mounting assembly for use in motor vehicle lamps is described. The LED lamp mounting assembly connects a LED lamp to a pre-existing incandescent lamp socket in a motor vehicle. The LED lamp mounting assembly therefore allows a LED lamp to be operated from...
12/26/2006
7153004Flashlight housing
The present invention provides a lighting assembly that incorporates a high intensity LED package into an integral housing for further incorporation into other useful lighting devices. The present invention primarily includes three housing components, namely an inne...
12/26/2006
7153000Multi-lens light emitting diode
A multi-lens LED has multiple lenses and an intermediate layer interposed between the multiple lenses in order to radiate light emitted from an LED chip in a desired direction and/or at a desired beam angle. The first lens is centered behind the LED chip when seen i...
12/26/2006
7150540Rechargeable LED utility light
A portable utility light has a hollow housing formed of releasably joined front and rear housing halves with a lens opening. A plurality of LEDs is mounted in the housing adjacent the lens opening and positioned in rows and columns. A reflector member has a pluralit...
12/19/2006
7150552Vehicle headlight
The invention concerns a vehicle headlight, comprising a two-dimensional array (2) of a plurality of electronic light emitter elements (4), which are arranged for emitting a plurality of parallel light beams (6), a collection lens (8), wh...
12/19/2006
7150553Replaceable LED lamp capsule
Open LED chips may be arranged directly on the surface of a replaceable lamp capsule without intervening packages that reduce overall light emission. The chips may be oriented in such a way that the lamp generates a unique “donut” shape radiation pattern, which ...
12/19/2006
7147343Flashlight
A flashlight has a lens moveable relative to an LED. The beam of light provided by the LED can be focused and provides a uniform light pattern across the range of focus. The lens is supported on a front housing section and the LED is supported on a back housing sect...
12/12/2006
7147352Precision light emitting device
A light emitting device includes a hollow truncated spherical housing having an inner surface and an outer surface. The housing is substantially transparent. A light source, that generates a plurality of light rays, is positioned with respect to the housing to minim...
12/12/2006
7148632LED lighting system
A lighting device that can generate light of variable color and intensity under processor control. Multiple lighting devices of a modular design can be incorporated into a lighting system to illuminate larger areas. A lighting module includes three groups of LEDs ea...
12/12/2006
7147340LED flashlight with multi-color decorating
A flashlight having a light-emitting diode light source with first and second leads extending therefrom, a power source, a power source frame enclosing at least a portion of the power source; a housing containing the light source and power source, a switch located a...
12/12/2006
7144121Dichroic beam combiner utilizing blue LED with green phosphor
A white beam with high color-rendering index is formed by uniting a collimated red beam and a collimated blue-green beam, the latter having as its source a blue LED with a green phosphor. The white beam is formed by a prism with an amber low-pass dichroic filter. Th...
12/05/2006
7144139Flexible surface lighting system
A system with a pair of flange extrusions and a base extrusion having a channel for electrical leads and lighting. A preferred embodiment has a base extrusion of polyvinyl chloride (PVC) of 89–98 Duro on the Shore OO scale. The base extrusion is connected, on oppo...
12/05/2006
7144763Epoxy resin compositions, solid state devices encapsulated therewith and method
Epoxy resin compositions are disclosed which comprise (A) at least one silicone epoxy resin, (B) at least one hydroxyl-containing compound, (C) at least one anhydride curing agent, (D) at least one ancillary curing catalyst, and optionally at least one of thermal st...
12/05/2006
7140742Surface-mount semiconductor lighting apparatus
A lighting effects system comprises an arrangement of lamp elements, such as light-emitting diodes (LEDs) or other light elements, on a panel or frame. The panel or frame may be relatively lightweight, and may include one or more circuit boards for direct mounting o...
11/28/2006
7140753Water-cooling heat dissipation device adopted for modulized LEDs
A water-cooling heat dissipation device adopted for a lighting module that includes a plurality of LEDs modulized together, and includes a heat dissipation plate, at least one curved canal recessed inside the heat dissipation plate, at least one inlet formed on one ...
11/28/2006
7140751Full-color flexible light source device
A full-color flexible light source device is disclosed. The device includes a plurality of light source units each comprises a red LED, a green LED, and a blue LED arranged in the shape of a triangle. Each of the R, G, and B LEDs is a bare chip and the R, G, and B L...
11/28/2006
7134779Light-emitting element circuit
A light-emitting element circuit. The light-emitting element circuit disposed on a FPC includes a plurality of light-emitting element sub-circuits arranged in parallel in the FPC. Each light-emitting element sub-circuit includes at least one first light-emitting ele...
11/14/2006
7134770Indicating light
Indicating light for optical display, comprising a housing including electrically conducting components, a light-emitting diode, a light rod and a round cap. ...
11/14/2006
7131758Vehicle headlamp with light-emitting unit shifted from optical axis of lens
There are provided five first lighting units for carrying out light irradiation to form a horizontal cutoff line. Each of the first lighting units has such a structure that includes a first light source formed by a light emitting diode provided to face forward in su...
11/07/2006
7132785Illumination system housing multiple LEDs and provided with corresponding conversion material
An illumination system according to the principles of the invention may include a first LED and a carrier material. The carrier material may be comprised of plastic, synthetic material, polymer, latex, rubber or other material. The carrier material may also contain ...
11/07/2006
7128431Display device
The invention relates to a display device, especially in a motor vehicle, comprising a display (2) which can be illuminated by a light source (1), and a light guide (7) which is arranged between the light source (1) and the display (2
10/31/2006
7128454Light emitting diode module for automobile headlights and automobile headlight having the same
The present invention relates to an LED module for automobile headlights. The LED module comprises a water proof structure together with a heat radiating structure in order to prevent the permeation of external moisture while efficiently radiating heat to the outsid...
10/31/2006
7128444Light emitting diode lamp
A light emitting diode lamp includes a lead terminal 2 formed with a cup 8 having a conical inner circumferential surface serving as a light reflective surface 8a, an LED chip 4 bonded to a bottom surface 8b of the cu...
10/31/2006
7126459Warning device for bicycle
A warning device for bicycle mainly includes a magnetic and a coil mechanism. The magnetic mechanism includes a magnetic element assembly, a mounting module, and a holding module movably connected to the mounting module for holding the magnetic element assembly ther...
10/24/2006
7125137Light-emitting unit
A surface light-emitting unit installed on a floor or wall of a structure is able to emit light from its surface for unique illumination effects. A surface light-emitting unit includes a transparent glass plate that can transmit light; a light-conducting plate insta...
10/24/2006
7125139Flashlight
In auxiliary headlamp, for attachment to the headstrap of a personal headlamp, a lamp body is removably attachable to a strap bracket having a strap-receiving slot through which a headstrap can extend. When the lamp body is attached to the strap bracket, the lamp bo...
10/24/2006
7125160Led light collection and uniform transmission system using a conical reflector with a roughed up inner surface
Apparatus for collecting light from an LED and transmitting it in a near-uniform column incudes a conical reflector having a roughed up inner surface about the base of the LED for collecting light emitted to the sides of the LED, and a lens specially designed to foc...
10/24/2006
7125133LED lighting system for patio umbrella
A lighting system is provided for use with a patio umbrella or gazebo. The lighting system has a battery housing or power source, and at least one wire branch, with each wire branch releasably attached to a corresponding one of the ribs of the patio umbrella, or to ...
10/24/2006
7126273LED light source with lens
The light source has an LED, preferably produced for the surface-mounting technique, embedded in a transparent material filling. A converter substance is integrated in the filling for the at least partial wavelength conversion of the light emitted by the LED. A lens...
10/24/2006
7121686Candle light-diversifying device
A candle light-diversifying device is mounted at a bottom side of a candle which includes a tunnel running through an imaginary central axis thereof, and a candlewick received in the tunnel. The candle light-diversifying device includes a housing having three throug...
10/17/2006
7121680LED lighting assembly with improved heat management
A lighting head assembly that incorporates a high intensity LED package into an integral assembly including a heat sink and circuit board for further incorporation into other useful lighting devices. The assembly includes a heat sink member that also serves as a mou...
10/17/2006
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