Abstract: An optical device is provided. The optical device includes a first surface that defines a concave light incident surface facing a central axis and a light source; a second surface disposed opposite the first surface which is configured to reflect light incident on the concave light incident surface; and an inclined light exit surface between the first surface and the second surface. The second surface includes a concave first reflective portion curving toward the first surface, and a substantially flat second reflective portion which portion is interposed between a first reflective portion edge of the first reflective portion and an outer second surface edge of the second surface. The first reflective portion is configured to totally reflect light incident at a predetermined angle or more with respect to a top surface of the light source once to the light exit surface.

Abstract: Various embodiments of lightguides and illumination systems that include lightguides are disclosed. In one or more embodiments, a lightguide can include first and second light extractors (330,340) that extract light that would otherwise be confined and propagate within the lightguide along the length of the lightguide primarily by total internal reflection. The first and second light extractors can form respective first and second patterns along a length of the lightguide. Light extracted by the first light extractors can exit the lightguide primarily along a first direction (306). Light extracted by the second light extractors can exit the lightguide primarily along a second direction (308) different from the first direction. A brightness of the total light extracted by the first light extractors can be larger than a brightness of the total light extracted by the second light extractors.

Abstract: The present application relates to an easy-to-install LED double-ring ceiling lamp, including a base plate, a LED light source board, a driving power supply, a translucent cover and a press ring. The LED light source board and the driving power supply are installed on the base plate, the translucent cover is covered on the base plate, and the press ring is covered outside the translucent cover and configured to support the translucent cover. The press ring and the base plate are detachably connected by multiple installation column-shaped bolts, and at least one of the multiple installation column-shaped bolts is a bendable installation column-shaped bolt.

Abstract: An apparatus for growing plants in a grow room includes an enclosure having a window. The enclosure contains a grow lamp that is arranged to direct light downward through the widow toward the plants. A blower is coupled with the enclosure to drive a flow of air through the enclosure. A gantry apparatus supports the enclosure in the grow room for movement above the plants.

Abstract: It is an object of the present invention to provide a light-emitting device where periphery deterioration can be prevented from occurring even when an organic insulating film is used as an insulating film for the light-emitting device. In addition, it is an object of the present invention to provide a light-emitting device where reliability for a long period of time can be improved. A structure of an inorganic film, an organic film, and an inorganic film is not continuously provided from under a sealing material under a cathode for a light-emitting element. In addition, penetration of water is suppressed by defining the shape of the inorganic film that is formed over the organic film even when a structure of an inorganic film, an organic film, and an inorganic film is continuously provided under a cathode for a light-emitting element.

Abstract: An adjustable hanging element is provided herein for suspended light fixtures which allows for adjustment of a point of contact for suspension both upon initial installation and while installed, without the need for taking the fixture down.

Abstract: Disclosed are a wavelength conversion device, a light-emitting device and a projection system, comprising a wavelength conversion layer having a first surface and a second surface opposite each other. The first surface receives an excitation light. The wavelength conversion layer absorbs the excitation to produce a converted light and emits the converted light or the mixture of the converted light and the excitation light from the first surface and the second surface. A scattering reflective substrate is stacked with the wavelength conversion layer and includes a white porous ceramic or a white scattering material for scattering the incident light. The scattering reflective substrate includes a third surface facing the second surface and scatters at least a part of the incident light on the third surface and then emits all the light from the third surface to the second surface.

Abstract: An emergency illumination apparatus is integrated into a door lock mechanism including a manual release member and a latch which is displaceable between an engaged position with the jamb of an associated exit door, and a disengaged position, enabling opening of the door. The apparatus includes an illumination device including a base member mounted to the door lock mechanism or a surface of the associated exit door and a spaced array of discrete illumination elements extending along at least one axis intersecting with or circumventing the manual release member. A sensor operates to detect an emergency condition such as the presence of excessive heat, smoke, carbon monoxide, noxious gas and the like, and generate an alarm signal in response thereto. An independent power supply is disposed within the emergency door lock illumination apparatus. A controller energized by the power supply activates the illumination device in response to the alarm signal.

Abstract: An illuminated vanity mirror includes a housing and a front mirror panel connected to the housing. A frame is connected to the housing and positioned behind the front mirror panel. A light emitter is connected to frame. The light emitter includes a plurality of LEDs facing away from the front mirror panel. The LEDs are positioned to direct emitted light toward the housing and the emitted light is redirected through the front mirror panel.

Abstract: A display device is provided. The display device includes a mother substrate for light-emitting units. The mother substrate for light-emitting units has a first upper surface and a first lower surface. The display device also includes at least one light-emitting unit disposed on the first lower surface, and a first substrate having a second upper surface, a second lower surface, and a plurality of active devices disposed between the second upper surface and the second lower surface. The light-emitting unit is electrically connected with at least one of the active devices of the first substrate.

Abstract: The present invention provides a transparent window display apparatus, which includes a diffuser plate, in addition to a transparent display screen, a top plate, a back plate, a base and two side walls, the diffuser plate and the back plate form an angle and at least one light source is provided between the top plate and the diffuser plate. By adjusting the light source between the top plate and the diffuser plate, planar light is provided for both show of an exhibit and display of the transparent display screen simultaneously, dual purposes of window display and advertisement display can be achieved, and meanwhile, costs are saved and efficiency is improved.

Abstract: A multifunctional LED bulb includes a lamp base, a light-transmitting bulb shell, a driving power supply, electric lead wires, a stem, at least one LED light source and a support column, wherein the tail of the light-transmitting bulb shell is fixedly connected with the lamp base; the driving power supply is located in the lamp base, and the LED light sources and the support column are wrapped in an inner cavity of the light-transmitting bulb shell; the light-transmitting bulb shell is sealed by the lower portion of the stem which is of a hollow structure, an exhaust pipe is arranged in the stem, and a hole is formed in the joint of the upper end of the exhaust pipe and the stem. The multifunctional LED bulb looks like ordinary incandescent bulbs, and is environmentally friendly, good in heat dissipation and light-emitting effect.

Abstract: A light-emitting device may include a ceramic substrate having a reflective component, a light-emitting diode on the ceramic substrate, and a light-converting material over the light-emitting diode. A lighting system may include a ceramic substrate having a reflective component, a plurality of light-emitting diodes connected together in series, wherein the plurality of light-emitting diodes are on the ceramic substrate, and a light-converting material over the plurality of light-emitting diodes. The ceramic substrate may provide electrical insulation between the light-emitting diode and the aluminum carrier. The ceramic substrate may provide thermal conductivity between the light-emitting diode and the aluminum carrier. The reflective component may include zirconium oxide. The ceramic substrate may include aluminum oxide and/or aluminum nitride. The light-converting material may include phosphor. The light-emitting diode may have an epitaxial diode structure.

Abstract: A lighting device (100, 300, 400) is disclosed. The lighting device comprises a light source (110, 310, 410), an at least partially light transmitting envelope (120, 320, 420) and a dispenser (140, 340, 440). The envelope is arranged to define a sealed space (130, 330, 430) in which at least a portion of the light source is arranged. Further, the dispenser comprises a chemically reactive substance and is adapted to gradually release at least some of the chemically reactive substance to the sealed space so as to reduce contaminants and by-products that may be present in the sealed space.

Abstract: Provided is a vehicle lamp which enables work for connecting an organic EL panel and a power feeding section to be omitted. A vehicle lamp 10 includes: a lamp unit 20; a mounting section 70 to which the lamp unit 20 is detachably mounted; and first fixing means (a first fixing section) which fixes the lamp unit 20 detachably mounted to the mounting section 70, and the mounting section 70, wherein the lamp unit 20 includes: an organic EL panel 40 including a front surface 40a with a light-emitting surface 40a1, and a rear surface 40b on an opposite side to the front surface 40a; a first electrode 54 electrically connected to the organic EL panel 40; and a first bracket 30 which holds the organic EL panel 40 and the first electrode 54, and the mounting section 70 includes a second electrode 82 to which the first electrode 54 of the lamp unit 20 fixed by the first fixing means (first fixing section) is to be electrically connected.

Abstract: A display apparatus includes a display panel configured to display an image, a light guide member below the display panel, a light source adjacent to at least one surface of the light guide member, and an optical member between the light guide member and the display panel. The optical member includes a wavelength conversion layer configured to convert a wavelength band of incident light. A low refractive index layer between the wavelength conversion layer and the light guide member and including a plurality of pores, and an inorganic layer between the low refractive index layer and the wavelength conversion layer. A volume ratio occupied by the pores within the low refractive index layer increases as being closer to the light guide member.

Abstract: A two-dimensional (2D)/three-dimensional (3D) switchable backlight unit and an image display apparatus using the 2D/3D switchable backlight unit are provided. The 2D/3D switchable backlight unit includes: a light source unit; a first light guide plate, within which light from the light source unit is totally internally reflected; and a plurality of refraction patterns, each having a trapezoidal form. The light source unit may include a first light source and a second light source.

Abstract: An LED module of a lighting device includes an optic that includes one or more internal lenses, which are to be rotationally aligned with corresponding LEDs held within the module. In order to correctly rotationally align the LEDs with the lenses, the module includes one or more notches in the end of the module, which line up with and receive corresponding detents formed on the exterior surface of the optic. When the optic is mounted in the module with the detents in the notches, the LEDs line up with the lenses. Additionally, the side surface of the optic includes indicia indicating a characteristic of the optic, e.g., the lens' angles.

Abstract: An LED lighting device includes a housing, an LED light-emitting unit arranged inside the housing, and an LED driver configured to drive the LED light-emitting unit to operate. The LED driver and the LED light-emitting unit are integrally arranged inside the housing. The LED lighting device allows the number of components to be reduced, and the structure to be more compact, thus allowing the LED driver to be set inside a housing of a small lighting device.

Abstract: The invention relates to a waterproof lighting element, wherein the lighting element comprises a printed circuit board with an aluminum substrate layer. The invention relates also to a waterproof lighting element, wherein the lighting element comprises a printed circuit board with a base plate. The invention relates also to a method of manufacturing a waterproof lighting element.