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US 2015/0029728 A1Published application
Lens and led module using the same
AssigneeHon Hai Precision Industry Co., Ltd.
InventorsCHAU-JIN HU, LI-YING WANG HE
Life of this patent
Estimating the term…
Abstract
A lens includes a bottom face, a light incident face formed in the bottom face, a light emerging face opposite to the bottom face and a lateral face formed between the bottom face and the light emerging face. A light diverging protrusion is formed on the light incident face. The light diverging protrusion has a conical face gradually shrinking away from the light emerging face. An LED unit incorporating the lens is also disclosed.
Claims19
A lens comprising:
- a light incident face;
- and
- a light emerging face opposite to the light incident face;
- and
- a light diverging protrusion formed on the light incident face;
- wherein the light diverging protrusion has a light reflecting face inclined relative to an optical axis extending through the light incident face and the light emerging face;
- the light incident face encloses a cavity in the lens, the light diverging protrusion being received in the cavity;
- and
- the lens comprises a bottom face opposite to the light emerging face, the cavity being defined in a central area of the bottom face.
6 more elements
-6. (canceled)
An LED (light emitting diode) unit comprising:
- an LED;
- and
- a lens covering the LED, the lens comprising:
- a light incident face;
- a light emerging face opposite to the light incident face;
- and
- a light diverging protrusion protruding from the light incident face towards the LED, the light diverging protrusion having a conical outside face gradually shrinking from the light incident face towards the LED;
- the lens comprises a bottom face opposite to the light emerging face, a cavity being defined in the bottom face.
5 more elements
(canceled)
Dependencies are inferred from the claim text.