An LED filament lamp comprises a bulb shell and an LED filament component located inside the bulb shell. The LED filament lamp further comprises a driving board, a lamp holder bulb shell and an inside liner. The inside liner is a bulb shell structure made of insulating material and installed inside the lamp holder bulb shell. At least a part of the driving board is located inside the inside liner to make the driving board and the lamp holder bulb shell separate from each other. The LED filament component is electrically connected to the driving board and the lamp holder bulb shell is electrically connected to the driving board. The LED filament lamp has characteristic of simple structure.

The present invention relates to a detachable LED lighting device, comprising: a lighting module unit which emits light by receiving a power supply, the lighting module unit comprising a substrate including a plurality of LEDs; a connector unit coupled to the lighting module unit, the connector unit having a hitch protrusion on the upper part and having a lower connector for supplying power to the substrate; and a frame unit provided with a connector and a power connector, the connector fixed by being hitched to the hitch protrusion of the connector unit that is inserted into the bottom surface, and the power connector supplying power from an embedded power supply unit to the lower connector. The present invention comprises a frame unit having a power supply unit embedded therein and a lighting module unit which can be easily separated from the frame unit by manipulation of a push button exposed to both ends, with the both ends being fitted and fixed into the frame unit so that the lighting module unit can be more easily detached, thereby reducing the time and cost required for maintenance.

A light emitting device of the present disclosure includes a light emitting section that generates fluorescence by receiving laser light, a reflection film that reflects laser light which is radiated to the vicinity of the light emitting section, among laser light which is emitted toward the light emitting section from a rod lens, and a reflection mirror that collects the laser light reflected by the reflection film, in the light emitting section.

A light emitting module includes a light emitting diode chip and a lens. The lens includes a lower surface having a concave portion. The lens also includes an upper surface from which light incident on the concave portion is emitted. The upper surface of the lens includes a concave surface positioned in a central axis thereof. The concave portion of the lower surface includes at least one of a surface perpendicular to the central axis and a downwardly convex surface. At least one of the surface perpendicular to the central axis and the downwardly convex surface is positioned in a region narrower than an entrance region of the concave portion.

An illumination source includes a housing (101), at least one first light emitting diode (LED) (102) coupled to the housing and configured to emit green-shifted white light, at least one second LED (104) coupled to the housing and configured to emit blue-shifted white light, and at least one third LED (106) coupled to the housing and configured to emit at least one of a red-orange light and an amber light.

An embodiment provides a light emitting unit comprising a refraction unit which is arranged on a body of the light emitting unit; a reflection unit which is arranged on the body so as to be spaced apart from the refraction unit; and a groove with at least a part thereof being arranged within the body and the refraction unit, wherein the height of the refraction unit is 1 to 2.5 times the height of the reflection unit, and the separation distance between the refraction unit and the reflection unit is shortest in the center of a region where the refraction unit and the reflection unit face each other, and largest at the edge.

A light source includes a plurality of solid state light emitters configured to be powered directly from an AC source, and means for providing an electrically insulating and thermally conductive attachment between the solid state light emitters and a heat sink.

A light-emitting module including a light emitting component, a heat dissipation element, and a light-converting component is provided. The light-emitting component is adapted to emit a light beam. The heat dissipation element is disposed at one side of the light-emitting component, wherein the heat dissipation element has a light through hole and the light through hole is located at a transmission path of the light beam. The light-converting component is connected to the heat dissipation element and covers the light through hole.

A lens including an upper surface having a curved portion having a changing curvature in a direction extending away from a central axis of the lens, and a lower surface having a concave portion disposed on the central axis of the lens. The concave portion of the lower surface includes an entrance disposed on a lower region of the concave portion and configured to receive light emitted from a light-emitting diode chip, and an upper end surface disposed on an upper region of the concave portion. The concave portion includes a width that narrows in a direction extending away from the entrance. The upper end surface is nonplanar.

An optical element is provided for beam shaping for radiation emitted by a radiation-emitting semiconductor chip. The optical element includes a radiation entrance face and a boundary surface different from the radiation entrance face with a first region and a second region. The first and second regions are arranged and embodied such that a first radiation portion of radiation entering the optical element through the radiation entrance face is reflected in the first region and after reflection in the first region is deflected in the second region towards a plane defined by the radiation entrance face.