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US 9,806,242 B2Granted
Optical lens for light emitting diode device
AssigneeHon Hai Precision Industry Co., Ltd.
InventorPo-Chin Chiu
Life of this patent
Estimating the term…
Abstract
An optical lens for an LED includes an upper portion defining a light extraction face, a lower portion and an annular flange between the upper and lower portions. The lower portion has a wall section defining a cavity for receiving the LED therein, and a curved lateral side. A lateral light generated by the LED and running against the curved lateral side has at least a part being refracted or reflected thereby to run through the light extraction face of the optical lens.
Claims16
An optical lens comprising:
- an upper portion comprising a top face that defines a central depression recessed downwardly and a side face wherein the top face and a side face of the upper portion together constituting a light extraction face for the optical lens;
- a lower portion comprising a bottom face and a lateral face, wherein the bottom face of the lower portion that defines a cavity recessed upwardly toward the central depression, the cavity being configured for receiving a light source therein;
- and
- a flange between the upper portion and the lower portion;
- wherein the lateral face of the lower portion being curved whereby at least a part of lateral light generated by the light source and running against the lateral face of the lower portion being at least one of refracted and reflected thereby to move to the light extraction face of the optical lens;
- wherein the curved lateral face of the lower portion is curved toward a center of the optical lens;
- and
- wherein a reflective coating is formed on the curved lateral face of the lower portion.
5 more elements
A light emitting diode (LED) device comprising:
- an LED chip for generating light from a top and a lateral side of the LED chip;
- and
- an optical lens covering the LED chip therein, the optical lens comprising:
- an upper portion;
- a lower portion;
- and
- a flange between the upper portion and the lower portion;
- wherein a top face of the upper portion defines a central depression recessed downwardly, the top face and a side face of the upper portion together constituting a light extraction face for the LED device;
- and
- wherein a bottom face of the lower portion of the optical lens defines a cavity recessed upwardly toward the central depression, the cavity receiving the LED chip therein, a lateral face of the lower portion being curved whereby at least a part of the lateral light generated by the LED chip and running against the lateral face of the lower portion is at least one of refracted and reflected thereby to move to the light extraction face of the LED device;
- wherein the curved lateral face of the lower portion of the optical lens is curved toward a center of the optical lens;
- and
- wherein a reflective coating is formed on the curved lateral face of the lower portion of the optical lens.
10 more elements
A light emitting diode (LED) device comprising:
- a substrate;
- an LED chip for generating light from a top and a lateral side of the LED chip, the LED chip being mounted on the substrate;
- an optical lens mounted on the substrate and covering the LED chip therein, the optical lens comprising:
- an upper portion defining a light extraction face for the LED device;
- a lower portion;
- and
- a flange between the upper portion and the lower portion, the flange having a diameter larger than a diameter of each of the upper portion and the lower portion;
- wherein a bottom face of the lower portion of the optical lens engages with the substrate and defines a cavity recessed upwardly, the cavity receiving the LED chip therein, a lateral face of the lower portion being curved inwardly whereby at least a part of the lateral light generated by the LED chip and running against the lateral face of the lower portion is modulated thereby to move to the light extraction face of the LED device;
- and
- wherein a reflective coating is formed on the curved lateral face of the lower portion of the optical lens.
7 more elements
Dependencies are inferred from the claim text.