LED module
AssigneesFu Zhun Precision Industry (Shen Zhen) Co., Ltd., Foxconn Technology Co., Ltd.
InventorHai-Wei Zhang
Life of this patent
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Abstract
An LED module comprises an LED having an optical axis and a lens for refracting light from the LED. The lens is symmetric relative to a first plane at which the optical axis is located. The peak light intensity in the first plane occurs within 0-5 degrees off the optical axis. The light intensity in the first plane decreases from the peak light intensity with the increase of the angle off the optical axis. In a second plane perpendicularly intersected with the first plane at the optical axis, the peak light intensity occurs within 33-41 degrees off the optical axis, and the light intensity at the optical axis is larger than a half-peak light intensity. Within 0-33 degrees off the optical axis, the light intensity in the second plane increases with the increase of the angle off the optical axis.
Claims12
An LED (light emitting diode) module comprising:
- an LED having an optical axis;
- and
- a lens fixed over the LED for refracting light emitted by the LED out of the LED module, the lens having a concaved incidence surface for the incidence of the light into the lens and an opposite convex emission surface for the emission of the light out of the lens;
- wherein the lens is symmetric relative to a first plane on which the optical axis of the LED is located, a peak light intensity in the first plane occurring within 0-5 degrees off the optical axis of the LED, a light intensity in the first plane decreasing from the peak light intensity with the increase of the angle off the optical axis;
- and
- wherein a second plane is perpendicularly intersected with the first plane at the optical axis, a peak light intensity in the second plane occurring within 33-41 degrees off the optical axis, a light intensity in the second plane at the optical axis being larger than a half-peak light intensity in the second plane, the light intensity in the second plane increasing with the increase of the angle off the optical axis from 0 degree to 33 degrees.
Dependencies are inferred from the claim text.