当前申请(专利权)人：
NARENDRAN, NADARAJAH | UDAGE, AKILA, SHAN
原始申请(专利权)人：
NARENDRAN, NADARAJAH | UDAGE, AKILA, SHAN
当前申请(专利权)人地址：
37 Liberty Way,Clifton Park, NY 12065 US | 450 Fulton Street, Apt. 11,Troy, NY 12180 US
发明人：
NARENDRAN, NADARAJAH | UDAGE, AKILA, SHAN
摘要：
One embodiment provides a lens structure. The lens structure includes a backend. The backend includes a backend back surface and a backend front surface. The backend is configured to receive a luminous flux from a light source and to redirect the received luminous flux onto a lens. The redirected luminous flux is configured to increase a luminous efficacy.
权利要求：
CLAIMS
What is claimed is:
1. A lens structure comprising: a backend comprising a backend back surface and a backend front surface, the backend configured to receive a luminous flux from a light source and to redirect the received luminous flux onto a lens, the redirected luminous flux configured to increase a luminous efficacy.
2. The lens structure of claim 1, wherein the backend front surface is coupled to and contiguous with a back surface of the lens.
3. The lens structure of claim 1, wherein the backend back surface is configured to reflect at least a portion of the received luminous flux onto a back surface of the lens.
4. The lens structure of claim 1, wherein the backend back surface is configured to refract at least a portion of the received luminous flux and, via total internal reflection, is configured to transmit the refracted luminous flux into the lens.
5. The lens structure of claim 1, further comprising a lens, the lens comprising a lens front surface and a lens back surface.
6. The lens structure of claim 5, wherein the lens is configured to receive a portion of the luminous flux from the light source directly from the light source.
7. The lens structure of claim 5, wherein the lens front surface comprises a plurality of front surface features configured to enhance a characteristic of light output.
8. The lens structure of claim 5, wherein the lens back surface is coupled to and contiguous with the backend front surface.
9. A luminaire comprising: a light source; a lens comprising a lens back surface configured to receive an input luminous flux and an opposing lens front surface configured to emit an output luminous flux; and
a backend comprising a backend back surface and a backend front surface, the backend configured to receive a luminous flux from the light source and to redirect the received luminous flux onto the lens, the redirected luminous flux configured to increase a luminous efficacy of the luminaire.
10. The luminaire of claim 9, wherein the backend front surface is coupled to and contiguous with a back surface of the lens.
11. The luminaire of claim 9, wherein the backend back surface is configured to reflect at least a portion of the received luminous flux onto the back surface of the lens.
12. The luminaire of claim 9, wherein the backend back surface is configured to refract at least a portion of the received luminous flux and, via total internal reflection, is configured to transmit the refracted luminous flux into the lens.
13. The luminaire of claim 9, wherein the lens is configured to receive a portion of the luminous flux from the light source directly from the light source.
14. The luminaire of claim 9, wherein the lens front surface comprises a plurality of front surface features configured to enhance a characteristic of light output of the luminaire.
15. The luminaire of claim 14, wherein each front surface feature corresponds to a geometric shape, each geometric shape selected from the group comprising a linear shape, a curved shape, an ellipsoidal shape, a parabolic shape, a free-form shape, and/or a combination thereof.
16. The luminaire of claim 14, each front surface feature is selected from the group comprising a bump, a portion of a bump, a dimple, a portion of a dimple, and/or a combination thereof.
17. The luminaire of claim 9, wherein the lens back surface is coupled to and contiguous with the backend front surface.
18. The luminaire according to any one of claims 9 to 14, wherein the light source comprises at least one light emitting diode (LED).
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19. The luminaire according to any one of claims 9 to 14, further comprising a layer coupled to the front surface of the lens, the layer configured to provide a smooth outer surface.
20. The luminaire according to any one of claims 9 to 14, wherein the lens and the backend are produced in a three-dimensional (3D) printing process.