1632results about "Domestic lighting" patented technology

An adaptive strobe illumination control process for use in a digital image capture and processing system. In general, the process involves: (i) illuminating an object in the field of view (FOV) with several different pulses of strobe (i.e. stroboscopic) illumination over a pair of consecutive video image frames; (ii) detecting digital images of the illuminated object over these consecutive image frames; and (iii) decode processing the digital images in an effort to read a code symbol graphically encoded therein. In a first illustrative embodiment, upon failure to read a code symbol graphically encoded in one of the first and second images, these digital images are analyzed in real-time, and based on the results of this real-time image analysis, the exposure time (i.e. photonic integration time interval) is automatically adjusted during subsequent image frames (i.e. image acquisition cycles) according to the principles of the present disclosure. In a second illustrative embodiment, upon failure to read a code symbol graphically encoded in one of the first and second images, these digital images are analyzed in real-time, and based on the results of this real-time image analysis, the energy level of the strobe illumination is automatically adjusted during subsequent image frames (i.e. image acquisition cycles) according to the principles of the present disclosure.

An optical transmission tube for illumination is uniquely incorporated into any one of a variety of automotive, commercial, retail, structural, architectural, safety, or other products including running boards, vehicle interior compartments such as a glove box, approximate the license plate attachment area on a vehicle, a trunk, a vehicle hood, on a vehicle door, a vehicle bumper, a vehicle luggage rack, a picture frame, a flashlight, a building, a guard rail, a construction barrier, a bicycle, a sign, an appliance interior compartment such as a refrigerator, a part bin, a retail display shelf, a clipboard, a step, a tractor trailer, a desk, a walkway, a room or storage chamber, a runway, an instrument panel, a railroad crossing gate, an emergency sign, an elevator doorway, a swimming pool, a dog collar, a fish tank, a baby crib a hand rail, an inline skate an island in a parking lot or on a street, affixed to a curb, or on safety clothing.

A linear Fresnel lens for LED illumination is configured initially by using a meridional flux-assignment method and is then corrected by assessing the three-dimensional flux distribution of individual facets. The facet angles are slightly altered as required to produce uniformity. A variety of specialized lens shapes are generated, such as for illuminating shelves in commercial refrigerator food-display cases. The lens shapes are suitably thin for economical production by extrusion.

The invention provides an elongated lighting fixture with multiple light emitting diodes (LEDs) arrayed in two groups that are angled to each other. The fixture provides an extremely broad light emitting angle and includes an elongated housing having a pair of side walls with at least one fin to dissipate heat. Each side wall has a support member extending upward at angle from the side wall, wherein the side walls terminate at a central wall. A generally transparent cover is connected to the housing and extends between opposed ends of the housing. A first elongated fastener and a second elongated fastener are utilized to mount a first group of LEDs and a second group of LEDs to the first support member and the second support member, respectively. First and second interconnection board assemblies are affixed to respective support members beneath the group of LEDs by the first and second fasteners. When the first and second interconnection board assemblies are energized by an internal power source, current travels from each interconnection assembly through the fasteners to each group of LEDs for illumination.

A tandem light-emitting element employing an inverted-structure is provided. The light-emitting element includes a cathode, a first EL layer over the cathode, a second EL layer over the first EL layer, an anode over the second EL layer, and an intermediate layer. The intermediate layer is between the first EL layer and the second EL layer. The intermediate layer includes a first layer, a second layer over the first layer, and a third layer over the second layer. The first layer includes a hole-transport material and an electron acceptor. The third layer includes an alkali metal or an alkaline earth metal. The second layer includes an electron-transport material.

A lighting system for low temperature environments includes a plurality of light emitting diodes attached to a support member mounted within a refrigeration unit or the like for illuminating contents thereof. A reflector is disclosed adjacent to the light emitting diodes for dispersing the light therefrom. A light transmitting cover overlies the light emitting diodes, and preferably includes non-planar surfaces for dispersing light onto objects within the refrigeration unit. A power supply converts alternating current voltage to a lower direct current voltage for powering the light emitting diodes in a safe manner.

An illumination device for a kitchen hood includes a light case made by high heat conductive material and a circuit board is connected to an inside of the light case. A terminal is connected to the circuit board and located outside of the light case. A light unit is connected to the circuit board and located in the light case. The light unit directly contacts the inside of the light case so as to conduct the heat from the light unit to the light case. The light case includes an open bottom with which a cover is engaged and a bulb shade is located between the light unit and the cover so as to focus or guide the light beam from the light unit.

A lighting assembly and a method for manufacturing a lighting assembly are provided. The lighting assembly includes a light module including a lighting element, and an enclosure having a recess for receiving and housing the light module. The lighting assembly also includes a thermally conductive core connected to the light module through the enclosure. The lighting assembly further includes a housing mounted in thermal contact with the core and the enclosure, so as to cause the housing to dissipate heat to an ambient atmosphere.

A multiple LED lighting device and appropriate electrical components integrated into two versions and serving as a direct replacement for conventional fluorescent lighting used in refrigerated food merchandisers. Both versions include appropriate connectors and pins, enabling the LED lighting device to be installed directly in a food merchandising display case lighting fixture. The LED lighting supply circuit may include appropriate electrical components such as rectifiers, step-down transformers, regulators and colour rendering controls to provide the required voltage for the LEDs and appropriate light spectrum. The electrical components may be mounted either integrally within the device, incorporated in an end cap thereof, or installed separately within the refrigerated food merchandising display case. The light may be coloured within the permissible light spectrum by the use of appropriate LEDs and drivers providing the desired coloured lighting.

Various embodiments described herein comprise array of light emitting diodes and a cylindrical lens having front and rear curved surfaces. The cylindrical lens is disposed to receive light from the light emitting diodes and to redistribute the light. The cylindrical lens is located no more than about 8 inches distance from the front an illumination target, which may for example, comprise products on shelves in a refrigerator. The front and rear surfaces of the cylindrical lens are shaped to provide substantially uniform illumination across the target.

The invention provides a display and lighting arrangement (100) comprising a display unit (110), a sensor system (120), a control unit (130) and a lighting system (140), wherein the sensor system (120) is configured to sense a person (1) in a predetermined area (2) and to generate a corresponding sensor system signal. The lighting system (140) comprises a first light source (141) configured to provide front face light (41) to the person (1) and a second light source (142) configured to provide top light (42) to the person (1) in the predetermined area (2). The control unit (130) is configured to derive a person feature from the sensor system signal and to control, based on the person feature, the light (41) of the first light source (141) and the light (42) of the second light source (142). The display unit (110) is configured to display an image (5) of the person (1) located in the predetermined area (2) to the person (1) in the predetermined area (2).

A light module is removably coupleable to a light fixture and includes an LED lighting element mounted on a mounting base that is operatively coupled to a housing. The light module also includes one or more resilient members that operatively couple the mounting base to the housing and allow the mounting base and housing to resiliently move relative to each other. The resilient members compress when the light module is removably coupled to the light fixture to exert a generally axial force on the mounting base to drive the mounting base into resilient contact with a surface of the light fixture to provide a thermal coupling between the light module and the light fixture.

The lighting system according to the present invention includes an electrical wiring substrate in which a connector to a power source is formed, a plurality of LED chips mounted in a predetermined array pattern on the electrical wiring substrate, a deflection lens array disposed in proximity to the LED chips between the LED chip and the predetermined illumination region and a housing for receiving the electrical wiring substrate and the deflection lens array. A plurality of deflection lenses are integrally molded in the deflection lens array to lead lights from the LED chips to the predetermined illumination region in a state where the lights from the LED chips are superposed with each other. The lights emitted from the LED chips are collected in a state where they all are superposed in a common, single illumination region through the deflection lenses.

A wall or ceiling mountable lighting device comprises a self-contained single or multiple LED light source for emitting warm yellow-white light corresponding to halogen or incandescent light and a control circuit controlled by a remote control unit to energize and deenergize the light source and control light intensity. A rechargeable battery power source mounted on the lighting device is connectable to apparatus for charging the battery without removing the battery from the device. The apparatus includes an elongated probe assembly releasably connectable to the lighting device to perform the recharging process. The lighting device is particularly adapted for ease of placement of a light source for decorative purposes and / or illuminating artifacts in locations which would require substantial structural modifications to install conventional lighting.

A refrigerator unit with a lighted door including a cabinet including a top, bottom and opposed sides defining a front opening. The refrigerator further includes a door including a door frame mounted to the cabinet, said door frame having an inside and outside and including a top framing member, a bottom framing member, opposed side framing members and a glass panel having an exterior and an interior. Finally, provided is a lighting assembly attached to at least one of the top framing member, a bottom framing member and opposed side framing members. The lighting assembly includes a channel for maintaining a plurality of LEDs. The channel is disposed at an angle to direct light from the LED either parallel to the glass plane or at an oblique angle thereto. The system may reduce the intensity of the light when the door is opened. A method for operating a refrigerator is also disclosed.

A display assembly having at least one shelf. The back edge of the shelf being permanently affixed to a light support member. The light support member extends above and below the shelf. The light support member is spaced away from a support surface to provide an air gap between the light support member and the support surface. A light is attached to the light support member such that it is positioned within the air gap. Thereby the light provides backlighting. The light may be attached to the light support member by way of a bracket. The bracket can be positioned by way of mounting straps. The bracket may be J shaped, U shaped, rectangular shaped or any other suitable shape for producing substantially bidirectional light. The shelf can be either fixed or removable.

A light emitting diode lighting assembly includes a display unit and lighting assemblies. The display unit includes a left vertical support on a left side, a right vertical support on a right side, and a front portion. The first lighting assembly is operatively connected to the left vertical support proximate the front portion and includes a first plurality of light emitting diodes and a first reflector. The second lighting assembly is operatively connected to the right vertical support proximate the front portion and includes a second plurality of light emitting diodes and a second reflector. The first reflector directs light from the first plurality of light emitting diodes toward the right side and the front portion and the second reflector directs light from the second plurality of light emitting diodes toward the left side and the front portion to uniformly illuminate contents of the display unit proximate the front portion.

A housing for a light fixture, and the light itself, is disclosed. The housing comprises an elongate body and a resilient member mountable in the body to retain at least one light emitting diode (LED) between the resilient member and the housing such that the or each LED is repositionable within the housing. The light includes at least one LED mounted in the housing.

An adjustable lighted shelf and a cabinet having at least one adjustable lighted shelf. The cabinet has power strips attached to a low voltage power supply. Shelf supports are provided for mounting the at least one adjustable shelf in the cabinet. The at least one adjustable shelf has a lighting fixture and contact assemblies. The contact assemblies are in electrical engagement with the lighting fixture and the power strips. The contact assemblies have contacts which extend outward from the adjustable shelf to make electrical engagement with the power strips.

An aquarium having an adjustable lighting system for enhancing the display of fluorescent objects, such as fluorescent fish, contained within the aquarium under various external lighting conditions, such as a dark room or a brightly lit room. The aquarium comprises a tank and a plurality of light sources. Each light source emits light at a different wavelength spectrum which is selected to enhance the display of the fluorescent object under each type of external lighting condition. An electronic control is provided to control the operation of the plurality of light sources such that each light source may be selectively turned on / off based on the external lighting condition, or chronological criteria, to provide the best viewing experience.

A refrigerator includes a cabinet defining a storage space, a main door for opening and closing the cabinet, the main door defining an opening part that is in communication with the storage space, a sub-door rotatably mounted on the main door and configured to open and close the opening part, a panel assembly forming a front surface of the sub-door and made of a half glass material, a detection device provided to the sub-door and configured to detect a user's operation, and a door lighting unit provided to the main door and configured to, based on the sub-door being closed, turn on and off according to a signal from the detection device to allow selective viewing of an inside of the opening part through the panel assembly.

Position adjustable self-illuminated panel units may be used in combination with conventional shelf supports. Preferred shelf-units include a light-transmissive panel, a shelf frame holding the panel and having an illumination element for providing a light source to illuminate the panel, and a magnetic connector electrically interconnected to the illumination element and adapted to being magnetically and electrically coupled to a source of electrical power. The illumination element most preferably includes an LED strip housed within one member of the frame and positioned adjacent to an edge of the panel. A magnetic connector includes a pair of electrically conductive side panels, an electrically non-conductive spacer sandwiched between the side panels, and a pair of magnet bars fixed to the spacer. The magnet bars define an air gap therebetween such that electrical contact may be established between the magnet bars and a respective one of the side panels. Shelf lighting systems according to the present invention will most preferably include a self-illuminated panel unit as described briefly above, and a ferromagnetic power strip for supplying electrical power thereto. The magnetic connector is therefore capable of magnetic and electrical interconnection to the power strip (e.g., via the magnet bars thereof so as to in turn supply power to the panel unit (e.g., via lead wires connecting the side panels to the LED strip).

An illumination device for illuminating an interior space of a refrigerator includes a panel and an illuminator for introducing light into the panel. The illuminator introduces light into the panel along an edge of the panel. A surface of the panel includes a plurality of lines for diverting introduced light to a region that is outside of the panel. The plurality of lines form a grid.

An apparatus for selectively producing one or more of a plurality of wavelength distributions of radiation. The apparatus comprises a primary UV radiation source and one or more wavelength transforming materials separated from the primary UV radiation source, that in response to irradiation by the primary UV radiation source, produce transformed radiation having a wavelength distribution that is different from the wavelength distribution of the primary UV radiation source. None, one, or more than one of the various WT materials can be selected by the apparatus, to allow the primary UV radiation, any individual transformed radiation, or any combination of the various radiations to be to be emitted from the apparatus.

A battery powered rotating LED lighting assembly with a magnetic base, a housing and a pivot post attached to the housing. The lighting assembly housing is supported by the pivot post, which is supported by a support assembly in the base.

An optical fiber decoration device has various merits: small power consumption, no danger of fire, simple water-proof design and economical, battery can be used, excellent portability, long service life of light source, and no danger of destruction during transportation. The optical fiber decoration device is characterized by having an LED light source consisting of a plurality of LED's which are arranged at an end of optical fiber for emitting one or more colors and partially superimposed, enabling synthesis of colors. In FIG. 1, the optical fiber decoration device (I) includes an LED light source unit (2) and an optical fiber (1a). The distance L between the LED light source (2) and the optical fiber is 5 to 100 mm. Red, blue, and green LED's are used to realize multiple colors. The optical fiber decoration device can be used for signboards, outdoor decorations, bus advertisement, indoor decorations, decorations in an aquarium, unit type Christmas trees, clothes, and the like.