Abstract: A display device is provided. The display device includes: a display panel including a first display area and a second display area, wherein the first display area at least partially surrounds the second display area; a main backlight module disposed corresponding to the first display area and providing a backlight source for the first display area; and a reinforcing backlight structure including a sub-backlight module and an optical conversion member, the optical conversion member is disposed at least corresponding to the second display area, and the optical conversion member is disposed on a light-emitting side of the sub-backlight module, and light emitted from the sub-backlight module enters the second display area after passing through the optical conversion member.

Abstract: An integrated ceiling device includes integrated ceiling device including an electronic device housing, a heat dissipating structure, a light source, and a reflection/refraction assembly. An air gap is defined between the electronics housing and other components allowing ambient air to flow therethrough for cooling.

Abstract: The present disclosure relates to a display device, and more particularly, a display device comprises: a plurality of light sources; a resin layer disposed to cover the plurality of light sources; and a display panel disposed on the resin layer and including a display area and a non-display area, wherein the resin layer comprises: a first region configured to overlap the display area; and a second region configured to overlap the non-display area, and wherein a plurality of fine holes are provided in at least a part of the second region. Therefore, the decomposed materials, which are produced by the decomposition of the backlight unit and the components around the backlight unit in a high-temperature, high-humidity environment, may be discharged through the fine holes.

Abstract: A passive system that creates a cross-flow and directly flow thermal management system to dissipate large amounts of heat in a slim light fixture.

Abstract: Optical lenses and associated luminaire are described herein. In one aspect, a lens comprises a light receiving side comprising grooves for receiving light emitting diodes, the grooves defined by a central refractive region and walls comprising total internal reflection faces; and a light extraction side opposite the light receiving side, the light extraction side comprising refractive extraction surfaces, total internal reflection extraction surfaces, or combinations thereof. In some embodiments, luminaire comprises an array of light emitting diodes; and the lens positioned over the array of light emitting diodes.

Abstract: A lighting system may include a lamp assembly including a lens assembly, wherein the lens assembly includes a first section and a second section, wherein the first and second sections each include a material having variable light transmissivity in response to an applied voltage, and wherein the light transmissivity of the first section is adjustable independent of the light transmissivity of the second section.

Abstract: An LED light module comprises an emitting portion; at least one LED package; a back cover; and an end cap. The emitting portion defines a first curved surface. The first curved surface extends a first length along a cylindrical axis defined by the LED light module. The back cover defines a second curved surface extending the first length along the cylindrical axis. The first curved surface and the second curved surface define a perimeter of the LED light module. In a cross-section of the LED light module taken in a plane substantially perpendicular to the cylindrical axis, the perimeter is substantially ovular, elliptical and/or tear-drop shaped. The end cap is substantially ovular, elliptical and/or tear-drop shaped, and comprises a coupling element configured to electrically and/or mechanically couple the LED light module to a subsequent LED light module or to a fixture.

Abstract: A light source system and a light-emitting device are provided. The light source system includes an array of light-emitting diodes, the light-emitting diodes including light-emitting diode chips; a collimating lens group located on a light path of light emitted by the array of the light-emitting diodes, the collimating lens group being configured to collimate light beams emitted by the light-emitting diode chips; and a fly-eye lens arranged on a light path of light outputted from the collimating lens group. The fly-eye lens includes micro lens units corresponding to the light-emitting diode chips, and for at least one light-emitting diode chip of the light-emitting diode chips, an image formed by each of at least one light-emitting diode chip on surfaces of the micro lens units is completely within a surface of one of the micro lens units. A ratio of side lobes is reduced, thereby improving the energy utilization rate.

Abstract: A light-emitting device includes: a plurality of light sources configured to be disposed on a substrate; a light diffusion member configured to commonly cover the plurality of light sources; and a plurality of wavelength conversion members configured to be disposed between the light sources and the light diffusion member in a thickness direction and disposed in regions corresponding to the plurality of light sources in a plane, respectively, and configured to convert light with a first wavelength from the light sources into light with a second wavelength.

Abstract: An optical device for projecting light beams that is able to interact with a pixelated light source comprising a plurality of selectively activatable emitting elements. The device successively includes, in the direction of the path of the light rays, a first optical unit, a pupil and a second optical unit. The first optical unit includes an output diopter located at a first distance (d1) from the pupil, and the second optical unit includes an input diopter interface located at a second distance (d2) from the pupil, the second distance (d2) being substantially identical to the first distance (d1). The first unit includes a converging lens, and the second unit includes a doublet of lenses one of which is made of flint glass and the other of which is made of crown glass.

Abstract: A display apparatus, a control circuit, and an anti-peeping display method are provided. The display apparatus includes a display panel and a backlight module. The anti-peeping display method includes: determining an anti-peeping area; controlling the dimming diaphragm to be alternately switched between a transparent mode and a diffusion mode; in response to the dimming diaphragm being switched to the transparent mode, disabling a part of first light-emitting units rotating into the anti-peeping area from emitting light and enabling a part of second light-emitting units rotating into the anti-peeping area to emit light; and in response to the dimming diaphragm being switched to the diffusion mode, disabling the part of the first light-emitting units rotating into the anti-peeping area to emit light and the part of the second light-emitting units rotating into the anti-peeping area from emitting light.

Abstract: The present invention discloses is an easy heat-dissipating lamp structure, comprising an outer shell. Inside the upper half space of the outer shell, there are multiple rib plates formed in the direction from top to bottom, so that multiple vertical gaps are formed. A heat dissipator is held inside the lower half space of the outer shell, leaning and fixed on the lower edge of the rib plates. The bottom face of the heat dissipator is attached with a light emitting plate. The heat generated by the light emitting plate is received by the heat dissipator and is discharged through the vertical gaps between the multiple rib plates.

Abstract: An optical device for a lighting module. The invention relates to an optical device and a lighting module including a light source provided with a plurality of emitting elements and with said optical device. One face of a lens of the device comprises an array of recessed patterns, each of which is organized with a specific profile so as to produce an optimized light distribution. The profile in particular has a rotational symmetry.

Abstract: A light source and a backlight module are provided. The light source includes a lens and a light bead arranged in an accommodating cavity of the lens. The lens includes a light incident surface, a reflecting surface, and a light emitting surface. Light emitted by the light bead is directed to a preset direction through the lens through adjusting a reflection direction of the reflecting surface. The reflecting surface includes a first reflecting surface and a second reflecting surface, the first reflecting surface and the second reflecting surface are connected at a turning angle, and the turning angle is greater than 0 degrees and less than 180 degrees. The angle of the turning angle between the first reflecting surface and the second reflecting surface can be adjusted to adjust reflection directions of the first reflecting surface and the second reflecting surface.

Abstract: A planar light source includes a substrate, light sources, and a partitioning member. The partitioning member defines partitioned regions arranged in a first direction and in a second direction that intersects the first direction. At least one of the light sources is arranged in a corresponding one of the partitioned regions. The partitioning member includes a plurality of first wall parts defining a plurality of first ridges extending in the first direction, and a plurality of second wall parts defining a plurality of second ridges extending in the second direction. The first wall parts define at least one first cut on at least one of the first ridges. At least one of the partitioned regions is surrounded by the first ridges and the second ridges in a plan view and includes an opposing pair of the first wall parts and an opposing pair of the second wall parts.

Abstract: A portable illumination device includes a first component having a light source(s) and a second component coupled to the first component, and the second component includes a curved handle containing one or more battery cells within the curved handle, wherein the light source(s) are powered via the one or more battery cells, and wherein a center of mass of the illumination device is located in the curved handle. By way of example, the brightnesses of the light source(s) are adjustable and the control firmware of the micro-controller inside the portable illumination device is upgradable. In addition, the curved handle's center position may have a foldable hook for hanging the device downward so that it may be used as a lantern or flash light.

Abstract: A lighting device includes a light permeable body which has an aperture through which light enters the body. A light source is moveable relative to the body to enable the lighting device to adopt selectively one of a first configuration and a second configuration. In the first configuration, the light source is positioned over the aperture so that light emitted by the light source passes through the body before illuminating the room. In the second configuration, the light source is spaced laterally from the aperture so that the room is illuminated directly by light emitted from the light source.

Abstract: A backlight unit and a display device including the backlight unit is disclosed The backlight unit includes a light source protective element located on light sources, a base film located on the light source protective element, and a plurality of optical path control patterns, each of which is located to overlap a corresponding one of the light sources, that are disposed on at least one of both surfaces of the base film and configured to direct traveling paths of at least some of incident light rays, the optical path control patterns including an acrylic-based resin or a polyester-based resin and at least one type of inorganic particles dispersed in the resins, thereby enabling a thickness of the backlight unit to be reduced and image quality to improve.

Abstract: A light fixture having a front and opposing lateral sides, the light fixture includes at least one light source configured to emit a plurality of light rays towards the front and opposing lateral sides, each light ray is emitted at a first angle relative to an optical axis of the at least one light source, and at least one panel extending adjacent to the at least one light source and configured to refract the light rays emitted towards the opposing lateral sides such that light rays exit the at least one panel at a second angle relative to the optical axis that is less than the first angle.

Abstract: The light device of a vehicle comprises a housing (5), covered with a translucent cover (1), a light unit (4) arranged in the housing (5) comprising at least one light source, and a functional plate member (12) comprising a lamella layer (6) configured to bind light rays (10) exiting from the optical unit (4). The lamella layer (6) comprises the first lamellas (6a), which are transparent for light, and the second lamellas (6b), which are non-transparent for light, and extend across the thickness of the lamella layer (6), are in a mutual contact and alternate with each other. The first lamellas (6a) are arranged for the passage of light rays (10) and the second lamellas (6b) are configured in such a way, when the light source is off, not to reflect the daylight (DS) that falls onto the second lamellas (6b) from the said external environment out of the light device into the external environment.