Abstract:
A light emitting module is configured to provide substantially uniform lighting using a plurality of lighting sources. The light emitting module includes a diffusion plate disposed at a set distance from the light emitting module. A light source substrate has a substantially quadrilateral outer perimeter with at least one gap formed therein, and a plurality of light sources are disposed on the light source substrate according to a repeated quadrilateral pattern. A distance between adjacent light sources in the repeated quadrilateral pattern is selected based on the set distance h from the diffusion plate to the light emitting module, and on a greater of two diagonal distances x, y of the quadrilateral pattern. The diffusion plate diffuses light emitted by the light sources to provide substantially uniform light. Various other aspects of the light emitting module are additionally described.
Abstract:
A lighting fixture includes a frame having a short protrusion disposed in an outer surface of the frame, the short protrusion having a step structure. At least one light source is disposed inside the frame, and a cover is coupled to the frame to cover the at least one light source. A pair of cap parts each include a coupling groove and supply power to the light source and are each disposed at a respective end of the frame. A terminal part has one end fastened to the coupling groove of one of the pair of cap parts, and has the other end protruding to the outside.
Abstract:
A method of manufacturing a lighting device includes filling a plurality of concave portions formed in a mold by applying a liquid-phase resin to the mold. A light transmitting sheet is attached to cover the liquid-phase resin. A plurality of lenses is formed by curing the liquid-phase resin. The light transmitting sheet on which the plurality of lenses are formed is separated from the mold. The light transmitting sheet is cut. A light emitting module is prepared including a body portion containing a plurality of light emitting devices and a groove portion spaced apart from the plurality of light emitting devices, and slidably coupling the cut light transmitting sheet to the groove portion so as to allow positions of the plurality of light emitting devices to be aligned with positions of the plurality of lenses.
Abstract:
A lighting device includes a light emitting module and a diffusion plate. The light emitting module includes a light source substrate including a spine part and at least one branch part, and a plurality of light sources disposed on the light source substrate and arranged in a repeated diamond shape pattern. The diffusion plate is disposed in a path of light emitted by the light sources. A length ratio of two intersecting diagonals of each diamond in the diamond shape pattern is at least 1:1 and no more than 1:1.5. A distance h between the light sources and the diffusion plate satisfies the expression 0.8≦−0.0592MH4+0.4979MH3−1.5269MH2+1.9902MH−0.0888, where MH is a ratio of the distance h to the greater of two diagonal lengths of diamonds in the diamond shape pattern.
Abstract:
A light emitting diode (LED) device is provided, which includes at least one LED unit including at least one LED to emit light, a support unit to support the at least one LED unit, and a heat radiation unit disposed between and in contact with the at least one LED unit and the support unit to transmit and radiate heat generated from the at least one LED unit toward the support unit. Accordingly, a dedicated structure for forming contact with air is unnecessary. Therefore, while securing a light emission function, flexible design and aesthetic appearance of the LED device may be achieved.