LED lens for backlight
First Claim
Patent Images
1. A Light Emitting Diode (LED) lens for a backlight, comprising:
- a LED light source;
a lens body configured such that the LED light source is accommodated in a lower portion thereof, and light emitted from the LED light source is radiated in vertical and lateral directions of the lens body; and
a beam shaping element fastened to a top of the lens body and configured to adjust radiation angles of light beams radiated through an upper surface of the lens body;
wherein, the lens body emits a major portion of the LED light in lateral direction and a minor portion of the LED light in vertical direction, and the lens body has a dome-shaped surface thereon to collimate the minor portion of the LED light toward the beam shaping element.
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Accused Products
Abstract
Disclosed herein is a Light Emitting Diode (LED) lens for a backlight. The LED lens includes an LED light source, a lens body, and a beam shaping element. The lens body is configured such that the LED light source is accommodated in the lower portion thereof, and light emitted from the LED light source is radiated in vertical and lateral directions of the lens body. The beam shaping element is fastened to the top of the lens body and is configured to adjust light beams radiated through the upper surface of the lens body. Accordingly, the uniformity of luminance and color can be increased and, at the same time, the overall performance of the system can be improved.
118 Citations
10 Claims
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1. A Light Emitting Diode (LED) lens for a backlight, comprising:
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a LED light source; a lens body configured such that the LED light source is accommodated in a lower portion thereof, and light emitted from the LED light source is radiated in vertical and lateral directions of the lens body; and a beam shaping element fastened to a top of the lens body and configured to adjust radiation angles of light beams radiated through an upper surface of the lens body; wherein, the lens body emits a major portion of the LED light in lateral direction and a minor portion of the LED light in vertical direction, and the lens body has a dome-shaped surface thereon to collimate the minor portion of the LED light toward the beam shaping element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification