High efficiency total internal reflection optic for solid state lighting luminaires
First Claim
1. An optical element, comprising:
- a lens comprising at least one total internal reflection (TIR) surface positioned to internally reflect incident light, said lens further comprising a receiving end with a diffuser;
wherein said lens comprises a polymeric material having a refractive index of 1.6 or greater.
4 Assignments
0 Petitions
Accused Products
Abstract
Optical elements having components made from high refractive index materials (RI≦1.6) and lamp assemblies incorporating such elements. Various optical elements, such as total internal reflection lenses, can be fabricated from materials having a higher index of refraction than materials typically used in such elements. The compact optical elements have at least one internal reflection surface that directs radiant energy (e.g., light) from a receiving end to a transmitting end. By using a high refractive index material, a lens can be fabricated that directs a greater portion of the light emitted from a source into the lens toward the transmitting end of the lens. Thus, less of the light spills out of the lens at a surface where emission is not intended, reducing the number of lossy bounces needed to direct the light in a particular direction.
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Citations
51 Claims
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1. An optical element, comprising:
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a lens comprising at least one total internal reflection (TIR) surface positioned to internally reflect incident light, said lens further comprising a receiving end with a diffuser; wherein said lens comprises a polymeric material having a refractive index of 1.6 or greater. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. An optical element, comprising:
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a lens comprising a plurality of internal surfaces arranged to redirect light entering said lens at a receiving end toward a transmitting end, wherein said receiving end comprises a diffuser; wherein said lens comprises a material having a refractive index of 1.6 or greater. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28)
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29. An optical assembly, comprising:
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a housing; a light source within said housing; a lens within said housing arranged to receive a portion of the light emitted from said light source at a receiving end, said lens internally directing light from said light source toward a transmitting end, wherein said receiving end comprises a diffuser; wherein said lens comprises a material having a refractive index of 1.6 or greater. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40)
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41. An optical element, comprising:
a lens comprising at least one total internal reflection (TIR) surface positioned to internally reflect incident light and a receiving end that comprises a diffuser. - View Dependent Claims (42, 43, 44, 45)
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46. An optical assembly comprising:
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a light source; a lens arranged to receive a portion of the light emitted from said light source at a receiving end, said lens internally directing light from said light source toward a transmitting end; and a diffuser comprising a portion that is between said light source and said receiving end of said lens. - View Dependent Claims (47, 48, 49, 50, 51)
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Specification