Led die, method for manufacturing the led die and automobile lamp having the led die
AssigneeHon Hai Precision Industry Co., Ltd.
InventorCHIH-CHEN LAI
Life of this patent
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Abstract
A light emitting diode (LED) die for use in an automobile lamp includes a light outputting surface; a concave surface is formed in a center of the light outputting surface. The concave surface is an aspheric and arc-shaped surface, with an arc-shaped edge connecting with a flat part of the light outputting surface which surrounds the concave surface. An LED automobile lamp with the LED die and a method for manufacturing the LED die are also provided.
Claims14
A light emitting diode (LED) die, comprising:
- a substrate;
- multiple semiconductor layers formed on the substrate, wherein a top surface of one of the multiple semiconductor layers away from the substrate forms a light outputting surface and wherein a concave surface which is round is formed in a center of the light outputting surface, the concave surface being an aspheric and arc-shaped surface and having an arc-shaped edge connecting with a flat part of the light outputting surface which surrounds the concave surface.
An LED automobile lamp, comprising:
- a lens;
- a light source, the light source being an LED chip and spaced from the lens, the light source comprising a light outputting surface, an concave surface being round in shape and being formed in a center of the light outputting surface, the concave surface being an aspheric and arc-shaped surface and having an arc-shaped edge connecting with a flat part of the light outputting surface which surrounds the concave surface, the light outputting surface directly facing to the lens.
A method for manufacturing an LED die for use in an automobile headlamp comprising steps:
- providing a substrate and multiple semiconductor layers on the substrate wherein a top surface of the multiple semiconductor layers away from the substrate functions as a light outputting surface;
- and
- etching a center of the light outputting surface to form a concave surface by laser etching, the concave surface being a aspheric, arc-shaped surface.
Dependencies are inferred from the claim text.