A semiconductor light emitting element includes a transparent substrate and a plurality of light emitting diode (LED) chips. The transparent substrate has a support surface and a second main surface disposed opposite to each other. At least some of the LED structures are disposed on the support surface and form a first main surface where light emitted from with a part of the support surface without the LED structures. Each of the LED structures includes a first electrode and a second electrode. Light emitted from at least one of the LED structures passes through the transparent substrate and emerges from the second main surface. An illumination device includes the semiconductor light emitting element and a supporting base. The semiconductor light emitting element is disposed on the supporting base, and an angle is formed between the semiconductor light emitting element and the supporting base.

An LED bulb structure includes a heat dissipation base, a power connector, a light-emitting module, an insulation cover, and a light-guiding cover. The power connector is disposed on a bottom side of the heat dissipation base. The light-emitting module includes a circuit substrate disposed on a top side of the heat dissipation base and a plurality of LED chips electrically connected to the circuit substrate. The LED chips are surroundingly disposed on the circuit substrate and adjacent to an outer perimeter surface of the circuit substrate. The insulation cover is disposed on the circuit substrate, and the insulation cover has a surrounding main portion and a convex portion disposed on a top side of the surrounding main portion. The light-guiding cover is disposed on the insulation cover. The light-guiding cover has a through opening formed on a top side thereof for exposing the convex portion.

The present invention provides an artificial candle includes a hollow cylinder, an electric wire, and a light bulb. The light bulb includes a light source with a long strip shape, a cup sleeved on and fixed to the electric wire at a position near the first end of the electric wire, an outer cover covered on the cup, and an inner cover sleeved on the light source and defining a receiving space with the cup for receiving a part of the light source and the second end of the electric wire. The light transmitted of the inner cover is less than that of the outer cover and that of the cup. The inner cover is configured for reflecting light emitted from the part, received in the receiving space, of the light source towards the wire holder and an exposed part of the electric wire. A simulating effect of flame is improved.

The present invention provides an artificial candle includes a hollow cylinder, an electric wire, and a light bulb. The light bulb includes a light source with a long strip shape, a cup sleeved on and fixed to the electric wire at a position near the first end of the electric wire, an outer cover covered on the cup, and an inner cover sleeved on the light source and defining a receiving space with the cup for receiving a part of the light source and the second end of the electric wire. The light transmitted of the inner cover is less than that of the outer cover and that of the cup. The inner cover is configured for reflecting light emitted from the part, received in the receiving space, of the light source towards the wire holder and an exposed part of the electric wire. A simulating effect of flame is improved.

A display device is disclosed. The display device includes a display panel, a frame behind the display panel, a light assembly positioned between the display panel and the frame and providing the display panel with light, and a substrate mounted with the light assembly and positioned in front of the frame. The frame includes a flat portion forming a flat surface and a trench forming a stepped portion together with the flat portion. The substrate is positioned on the trench.

A display device is disclosed. The display device includes a display panel, a frame behind the display panel, a light assembly positioned between the display panel and the frame and providing the display panel with light, and a substrate mounted with the light assembly and positioned in front of the frame. The frame includes a flat portion forming a flat surface and a trench forming a stepped portion together with the flat portion. The substrate is positioned on the trench.

A LED (light-emitting diode)-based illumination assembly with an adjustable irradiation angle comprises a conductive threaded protrusion protruding from a hollow cylindrical body and threaded to an electrical bulb-type socket; a vertical elongate guide rod protruding from the base sub-assembly; a fixed LED-module support fixed to a distal end of the vertical elongate guide rod; a movable LED-module support configured to move along the vertical elongate guide rod; a plurality of LED-based illumination modules; a plurality of elongate elastic plate; an irradiation angle adjustment mechanism, wherein the irradiation angle adjustment mechanism is configured to allow operative connection between an outer circumferential surface of the hollow cylindrical body of the base sub-assembly and the movable LED-module support, wherein the irradiation angle adjustment mechanism is configured to allow adjustment of an irradiation angle of the LED-based illumination modules to a selected angle via the operative connection.

A LED (light-emitting diode)-based illumination assembly with an adjustable irradiation angle comprises a conductive threaded protrusion protruding from a hollow cylindrical body and threaded to an electrical bulb-type socket; a vertical elongate guide rod protruding from the base sub-assembly; a fixed LED-module support fixed to a distal end of the vertical elongate guide rod; a movable LED-module support configured to move along the vertical elongate guide rod; a plurality of LED-based illumination modules; a plurality of elongate elastic plate; an irradiation angle adjustment mechanism, wherein the irradiation angle adjustment mechanism is configured to allow operative connection between an outer circumferential surface of the hollow cylindrical body of the base sub-assembly and the movable LED-module support, wherein the irradiation angle adjustment mechanism is configured to allow adjustment of an irradiation angle of the LED-based illumination modules to a selected angle via the operative connection.

The invention provides a luminaire comprising an optical element configured to spread light uniformly across a full visible face of the luminaire. The optical element comprises a central region and an outer peripheral region, each configured to receive light emitted by a light source arrangement and to direct this light out through a respective region of the light exit area of the luminaire. The central region receives light through a central transmissive surface portion which partially bounds it across its top. A further reflective tapered portion of the central region acts to reflect light incident at either of its two opposing sides, and provides a mixing function both within the central region of the optical element and within an inner compartment of the luminaire which extends between the optical element and the housing.

An optical module includes a transmitting member. The transmitting member is fixed to a cap member so as to cover a through-hole. On the assumption that the height of one point on a first surface in a state in which the transmitting member is detached from the cap member is zero and the direction toward the outside of the optical module is a positive direction, the amount of warp that is a difference between the displacement at the central point and the displacement at a standard point, on the first surface, corresponding to a reference point, on the projection image, away from a center of gravity by a particular distance is different between a first geodesic line and a second geodesic line, the displacement being a height of the one point in a direction of the optical axis in a state in which the transmitting member is fixed to the cap member. The transmitting member is joined to the cap member at the first surface or the second surface.