Illumination device
AssigneeHon Hai Precision Industry Co., Ltd.
InventorLI-YING WANG HE
Life of this patent
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Abstract
An illumination device, includes a printed circuit board, a plurality of LED light sources mounted on the printed circuit board, a hollow supporting post covering the plurality of LED light sources, a reflective cup located above the supporting post, a first lens received in a bottom portion of the reflective cup and a second lens located at a top portion of the reflective cup. The supporting post is connected to the printed circuit board, and the first lens is connected to the supporting post. The reflective cup includes a bottom portion adjacent to the LED light sources and a top portion remote from the LED light sources. The printed circuit board, the reflective cup, the first lens and the second lens are combined as a whole by the supporting post.
Claims17
An illumination device, comprising:
- a printed circuit board;
- a plurality of LED light sources mounted on the printed circuit board, and the plurality of LED light sources being electrically connected to the printed circuit board;
- a hollow supporting post covering the plurality of LED light sources, and the supporting post being connected to the printed circuit board;
- a reflective cup located above the supporting post, the reflective cup comprising a bottom portion adjacent to the LED light sources and a top portion remote from the LED light sources;
- a first lens received in a bottom portion of the reflective cup, and the first lens facing the plurality of LED light sources;
- and
- a second lens located at a top portion of the reflective cup opposite to the first lens;
- wherein light emitted from the plurality of LED light sources pass through and are dispersed by the first lens, and then the light transmitted from the first lens pass through and are dispersed by the second lens.
An illumination device, comprising:
- a printed circuit board;
- a plurality of LED light sources mounted on the printed circuit board, and the plurality of LED light sources being electrically connected to the printed circuit board;
- a hollow supporting post covering the plurality of LED light sources, and the supporting post being connected to the printed circuit board;
- a funnel-shaped reflective cup located above the supporting post;
- a first lens received in a bottom portion of the reflective cup, and the first lens being connected to a top portion of the supporting post;
- and
- a second lens located at a top portion of the reflective cup opposite to the first lens;
- wherein the first lens is a Fresnel lens, the second lens comprises an upper surface facing to the first lens and a lower surface opposite to the upper surface, a middle of the upper surface of the second lens is concaved downwardly to define a first groove, and a periphery of the upper surface of the second lens is concaved downwardly to define a plurality of second grooves surrounding the first groove.
Dependencies are inferred from the claim text.