LED module
AssigneesFu Zhun Precision Industry (Shen Zhen) Co., Ltd., Foxconn Technology Co., Ltd.
InventorsHai-Wei Zhang, Xing-Gui Huang
Life of this patent
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Abstract
An LED module includes an LED and an elongated lens. The lens includes a center axis, a concave incident face, and an opposite convex emitting face. The emitting face includes a portion with a curvature radius at any point along a first plane larger than a distance between the point and the LED, and larger than a curvature radius at a corresponding point of the incident face on the first plane. A curvature radius at any point of the portion of the emitting face along a second plane perpendicularly intersected with the first plane at the center axis is larger than a distance between the point and the LED, while smaller than a curvature radius of a corresponding point at the incident face on the second plane. A radiating angle of the LED module in the first plane is larger than that in the second plane.
Claims20
An LED module comprising:
- an LED for generating light;
- and
- a lens covering the LED for refracting light emitted by the LED, the lens having a center axis and a concave incident face for incidence of the light and an opposite convex emitting face for refracting the light out of the lens;
- wherein the emitting face comprising a portion with a curvature radius at any point along a first plane being larger than a distance between the point and the LED, and larger than a curvature radius at a corresponding point of the incident face on the first plane;
- wherein a curvature radius at any point of the portion of the emitting face along a second plane which is perpendicularly intersected with the first plane at the center axis being larger than a distance between the point and the LED, while smaller than a curvature radius of a corresponding point at the incident face on the second plane;
- and
- wherein a radiating angle of the LED module in the first plane is larger than that of the LED module in the second plane.
An LED module comprising:
- an LED comprising a base and a plurality of LED chips for emitting light;
- an elongated lens comprising a frame and a guiding portion expanding from the frame, the frame defining an opening receiving the LED therein, the guiding portion having a center axis and a concaved incident face facing the LED chips and an opposite convex emitting face for refracting the light out of the lens;
- wherein the lens is symmetric to a first plane and a second plane perpendicularly intersected with the first plane at the center axis, a length of the lens along the first plane being larger than a width of the lens along the second plane;
- and
- wherein a curvature radius at any point of the entire emitting face along the first plane is larger than a distance between the point and the LED, while smaller than a curvature radius of a corresponding point at the incident face on the first plane, a curvature radius at any point of the entire emitting face along the second plane being larger than a distance between the point and the LED and larger than a curvature radius of a corresponding point at the incident face on the second plane.
Dependencies are inferred from the claim text.