Abstract: A transparent light source system for a display device comprises a light source, and a light guide plate which includes an incident surface opposite to the light source, an upper surface, a lower surface parallel to the upper surface, and a lateral surface opposite to the incident surface. An outer light guide film is disposed outside the upper surface, first optical micro-structures allowing light transmitted in the light guide plate to be emitted from the upper surface are disposed on the upper surface, second optical micro-structures opposite to the first optical micro-structures are disposed on an inner surface of the outer light guide film, and the second optical micro-structures allow light emitted out of the first optical micro-structures to be emitted from an outer surface of the outer light guide film.

Abstract: A light source for a spotlight includes a carrier, a plurality of LEDs of different colors arranged on the carrier, a lensless collector optical system for collecting and mixing light from the LEDs, an output optical system for projecting the light from the collector optical system, and a control device for controlling the LEDs.

Abstract: A device comprises a display that includes an aperture layer, a plurality of light sources, and a piezo material. The aperture layer includes a plurality of apertures. The plurality of light sources is arranged to correspond to the plurality of the aperture. The piezo material is coupled to the light sources and is configured to alter a distance between the light sources and the corresponding apertures.

Abstract: A display device includes a light guide plate a first area, a plurality of first eccentric microstructures positioned in the first area with a first eccentric orientation, a second area arranged at one side of the first area, and second eccentric microstructures positioned in the second area with a second eccentric orientation. An angle between the first eccentric orientation and the second eccentric orientation is less than 90 degrees. First and second light sources are disposed on a first side of the light guide, and configured to project light towards a corresponding one of the first and second eccentric microstructures.

Abstract: A power tool includes a motor; an output part configured to be rotated around a rotational axis in response to energization of the motor; a plurality of lights disposed spaced apart around the output part; and an optical member having a refractive surface that refracts illumination light emitted from a light-emitting surface of one of the lights such that the main illumination direction extends at an angle away from the rotational axis.

Abstract: An LED light fixture includes a heat dissipation structure defining a first housing member and a plurality of concentric fin sets. A circuit board is thermally coupled to a side of the first housing member opposite the concentric fin sets, a plurality of light emitters is thermally coupled and mounted to a region of the circuit board overlying a first set of concentric fins, and a driver circuit is coupled and mounted to a region of the circuit board overlying a second set of concentric fins. A reflector spans between the circuit board and a second housing member, and a lens spans between the first and second housing member and provides light transmission therethrough.

Abstract: A lamp includes a light source, a housing having a mounting fixture fitting the light source, a lid frame defining an opening, a first gasket provided in a first groove formed in the lid frame, a transparent body nested with the first gasket and reflecting light emitted by the light source to be outputted through the opening, retainer clips provided along longitudinal edges of the first groove to compress and seal the first gasket to prevent ingress of dust and moisture through the opening, and three fasteners to securely attach the lid frame to the housing. The housing is configured to be installed recessed of a supporting surface.

Abstract: A head-mounted display device includes a display panel (such as a liquid crystal display), an optics system for focusing a portion of the display onto an eye of a user, and a backlight assembly including a light guide, a plurality of extraction features positioned on a surface of the light guide, and at least one laser diode for directing light into the light guide. The light guide is sized and dimensioned to illuminate only a portion of the display that is focused by the optics system; with the plurality of light extraction features configured to diffuse light toward the display panel for back illuminating the display panel.

Abstract: An optical system includes a light guide member having a light incident surface, a first surface, and a light emergent surface facing the first surface; and a prism provided in the first surface for reflecting light passing inside the light guide member towards the light emergent surface. The light guide member includes a direct optical path, along which the light that has entered the light guide member through the incident surface is directly reflected from the prism and allowed to emerge from the light emergent surface. At least one of the first surface or the light emergent surface includes a luminous intensity distribution control member configured to control a luminous intensity distribution of light to be extracted from the light emergent surface. The luminous intensity distribution control member includes a Fresnel lens.

Abstract: A display includes a transmissive spatial light modulator with an active area; a plurality of lightguides stacked above the active area; and a light source positioned to emit light that propagates into the plurality of lightguides such that the light is totally internally reflected within each lightguide then extracted from each lightguide to illuminate the active area, wherein each lightguide is folded at a first fold. In a first embodiment, each of the plurality of lightguides include a core layer and an emitting region with a plurality of light extraction features arranged in a spatially varying pattern. In a second embodiment, each lightguide is a film-based light guide with a thickness between 0.005 millimeter and 0.175 millimeter. In a third embodiment, the light source is positioned behind the spatial light modulator.

Abstract: A light-emitting device including a casing with a light-transmitting port; a light source disposed inside the casing; and a casing cover disposed in the light-transmitting port. The casing cover having an outer peripheral cover portion with an opening; an inner peripheral cover portion located in the opening; a light-transmitting gap formed between the inner peripheral cover portion with the outer peripheral cover portion; and a connecting rib spanning the light-transmitting gap to connect the outer peripheral cover portion with the inner peripheral cover portion. The connecting rib includes a concave portion extending toward an inside of the casing and configured to allow light from the light source to pass through.

Abstract: The lighting device includes a lens array having a plurality of lenses and a focal surface located at a focal distance from the lens array, a light source array having a plurality of light sources arranged to emit light towards the lens array with a light output distributed around a primary axis, and a cover layer having a light-transmissive surface portion delimiting light exit openings. The cover layer is positioned to substantially coincides with the focal surface. Each light source forms a combination with a closest lens, each combination having, in a plane perpendicular to the primary axis, a displacement length and a displacement direction, such that there are least two different displacement lengths and at least two different displacement directions.

Abstract: A rail lighting arrangement includes a rail, an additional component such as, for instance, a lighting module and a coupling unit. The rail has an inner region and a web that is provided with an opening. A conductor device is provided. The coupling unit is configured to be received by the rail and electrically connect to the conductor device. The coupling unit has a contacting section that is configured to be received in or pass through the opening in the web.

Abstract: An electronic device includes a housing defining a recess and having a bottom wall, a circuit board disposed in the recess, a plurality of first light sources disposed on the circuit board, a guiding ring provided in the housing and extending from the recess to an exterior of the housing, and a plurality of light-absorbing elements. The guiding ring having a light-entering edge for receiving light from the first light sources, and a light-emitting edge for outputting such light; the light-absorbing elements are supported by the bottom wall and adjacent to the light-entering edge.

Abstract: A vehicle lamp assembly includes a lamp finisher, a knob and a retainer. The lamp finisher defines an exterior housing for a light source of the vehicle lamp assembly. The knob is movable with respect to the lamp finisher to operate the light source between an ON state and an OFF state. The retainer is sandwiched between a portion of the lamp finisher and a portion of the knob. The knob is retained to the lamp finisher by the retainer.

Abstract: A backlight includes a first casing having an opening; a second casing connected to the first casing; an optical member disposed between the first casing and the second casing, and exposed via the opening; a supporting back plate disposed between the optical member and the second casing; at least one circuit board disposed between the supporting back plate and the second casing; and a plurality of light bars disposed on the supporting back plate. The supporting back plate is disposed between the second casing and optical member. The supporting back plate includes a first area and a second area, configured such that a distance from the first area to the second casing is greater than a distance from the second area to the second casing.

Abstract: A recessed lamp which includes a surface ring defining a light exit opening, a diffusing plate, and a light emitting assembly. The surface ring has an inner side surface, an outer side surface, and a protruding ring arranged on the inner side surface to surround the light exiting opening. The diffusing plate is positioned to abut against the inner side of the surface ring to cover the light exiting opening, and is fusion sealed to the surface ring. The light emitting assembly includes a plurality of LED lamp beads arranged on a substrate to emit light towards the light exiting opening.

Abstract: A control device includes a plurality of buttons having a backlight or indicia indicating a function of the buttons. Each button has a button body that is translucent and configured to be backlit by a lighting element. A front surface of the button body is opaque outside of the area of the indicia. The button body has a post that extends from a rear surface of the button body and is aligned with an actuator. Selection of a button by a user, such as by pressing the button, results in the selected button displaying a greater illumination intensity than the other buttons.

Abstract: An LED lighting fixture includes a housing, a substrate located within the housing, a plurality of LED groups of various colors mounted on the substrate, each LED color group including multiple LED components, at least one circuit communicating with a power supply and adapted for powering the LED components, and an optical component located at an output end of the housing. The LED components are arranged along first and second directions orthogonal to one another, such that no two LED of the same color reside adjacent one another along both of the first and second directions, and each LED component is spaced-apart from an adjacent LED component a distance no greater than 1.0 mm.

Abstract: A liquid crystal panel includes first substrate, a second substrate overlapping the first substrate, a liquid crystal arranged between the substrates, and first and second polarizing plates arranged outside from a corresponding one of the first and second substrates. A backlight unit includes a light source mounted on a wiring board, a light guide plate having a light-receiving side surface and a front light-output surface, an optical sheet arranged between the liquid crystal panel and the light guide plate, and a light shielding tape disposed between the liquid crystal panel and the optical sheet the light-shielding tape adheres to the second polarizing plate and the optical sheet.