Abstract

By having a single optical element combine the light of several high luminance LEDs, a high luminance light source can be formed, with shape and emission characteristics adaptable to nearly all illumination problems. The illuminance distribution of this virtual source facilitates the generation of the desired intensity pattern via its imaging-stye projection into the far field. This projection is achieved by one refractive and one reflective freeform surface, both calculated simultaneously by the 3D SMS method, which is herein demonstrated for an LED automotive headlamp.

© 2006 Optical Society of America

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References

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  1. Jung-Hyang Park and Jong-Youb Sah, “Design of Reflector Optics with Smooth Surface for Automotive Lamps,” in SAE 2001 World Congress: Lighting TechnologySAE Technical Papers, 2001
  2. V.I. Oliker and O. von Tempski, “On the design of reflectors with prespecified distribution of virtual sources and intensities,” Inverse problems 14, 661–678 (1998).
    [CrossRef]
  3. H. Ries and J.A. Muschaweck, “Tailoring freeform lenses for illuminations,” in Novel Optical Systems Design and Optimization IVR. Winston , Editor, Proc. SPIE4442, 43–50, (2001).
    [CrossRef]
  4. P. Benítez, R. Mohedano, and J.C. Miñano, “Design in 3D geometry with the Simultaneous Multiple Surface design method of Nonimaging Optics,” in Nonimaging Optics: Maximum Efficiency Light Transfer VR. WinstonJ. Koshel , eds., Proc. SPIE, 3781, 12–19 (1999).
    [CrossRef]
  5. P. Benítez and J.C. Miñano, et al, “Simultaneous multiple surface optical design method in three dimensions”, Opt. Eng. 43, 1489–1502, (2004)
    [CrossRef]
  6. O. Dross, P. Benitez, and J. C. Miñano et al, “Review of SMS Design Methods and Real World Applications,” in Nonimaging Optics and Efficient Illumination SystemsR. Winston and J. Koshel, eds., Proc. SPIE5529, (2004)
    [CrossRef]
  7. O. Dross, A. Cvetkovic, J. Chaves, P. Benitez, and J.C. Miñano, “LED Headlight Architecture that creates a High Quality Beam Pattern independent of LED Shortcomings,” in Nonimaging Optics and Efficient Illumination Systems II, R. WinstonJ. Koshel , eds., Proc. SPIE5942, 126–135 (2005).
  8. US Patent 6,639,733: “High Efficiency Non-Imaging Optics” Patent #, Issued Oct. 28, 2003. Inventors: Juan C. Minano, Pablo Benitez, Juan C. Gonzalez, Waqidi Falicoff and H. John Caulfield.
  9. US Patent: “Three-Dimensional Simultaneous Multiple-Surface Method and Free-Form Illumination-Optics Designed Therefrom” (pending). Inventors: Pablo Benitez and Juan C. Minano.
  10. R. Winston, J.C. Miñano, and P. Benítez. Nonimaging Optics, Elsevier Academic Press, San Diego, CA, 2005
  11. For ECE specifications (i.e. Reg 112) see http://www.unece.org/trans/main/wp29/wp29regs.html
  12. J. Chaves, W. Falicoff, O. Dross, J.C. Miñano, P. Benítez, and W. A. Parkyn. “Combination of light sources and light distribution using manifold optics,” in Nonimaging Optics and Efficient Illumination Systems IIIR. Winston and P. Benítez, eds., Proc. SPIE6338-21. 63380M-1–63380M-10 (2006)
  13. Patent: “Optical manifold for light-emitting diodes” (international patents pending). Inventors: Julio Cesar Chavez, Waqidi Falicoff, Juan C. Minano, Pablo Benítez, Oliver Dross, William A. Parkyn, JR, Roberto Álvarez
  14. M. Weber, C. Stover, L. Gilbert, T. Nevitt, and A. Ouderkirk “Giant Birefringent Optics in Multilayer Polymer Mirrors” Science, 287, 2451–2455 (2000)
    [CrossRef] [PubMed]
  15. For reflector characteristics see www.3m.com
  16. Oliver Dross, J.C. Miñano, Pablo Benitez, A. Cvetkovic, and Julio Chaves, “Non-imaging optics combine LEDs into one bright source,” in SPIE Newsroom, http://newsroom.spie.org/x3596.xml (2006).

2004 (1)

P. Benítez and J.C. Miñano, et al, “Simultaneous multiple surface optical design method in three dimensions”, Opt. Eng. 43, 1489–1502, (2004)
[CrossRef]

1998 (1)

V.I. Oliker and O. von Tempski, “On the design of reflectors with prespecified distribution of virtual sources and intensities,” Inverse problems 14, 661–678 (1998).
[CrossRef]

Benitez, P.

O. Dross, P. Benitez, and J. C. Miñano et al, “Review of SMS Design Methods and Real World Applications,” in Nonimaging Optics and Efficient Illumination SystemsR. Winston and J. Koshel, eds., Proc. SPIE5529, (2004)
[CrossRef]

O. Dross, A. Cvetkovic, J. Chaves, P. Benitez, and J.C. Miñano, “LED Headlight Architecture that creates a High Quality Beam Pattern independent of LED Shortcomings,” in Nonimaging Optics and Efficient Illumination Systems II, R. WinstonJ. Koshel , eds., Proc. SPIE5942, 126–135 (2005).

Benitez, Pablo

Oliver Dross, J.C. Miñano, Pablo Benitez, A. Cvetkovic, and Julio Chaves, “Non-imaging optics combine LEDs into one bright source,” in SPIE Newsroom, http://newsroom.spie.org/x3596.xml (2006).

Benítez, P.

P. Benítez and J.C. Miñano, et al, “Simultaneous multiple surface optical design method in three dimensions”, Opt. Eng. 43, 1489–1502, (2004)
[CrossRef]

R. Winston, J.C. Miñano, and P. Benítez. Nonimaging Optics, Elsevier Academic Press, San Diego, CA, 2005

P. Benítez, R. Mohedano, and J.C. Miñano, “Design in 3D geometry with the Simultaneous Multiple Surface design method of Nonimaging Optics,” in Nonimaging Optics: Maximum Efficiency Light Transfer VR. WinstonJ. Koshel , eds., Proc. SPIE, 3781, 12–19 (1999).
[CrossRef]

J. Chaves, W. Falicoff, O. Dross, J.C. Miñano, P. Benítez, and W. A. Parkyn. “Combination of light sources and light distribution using manifold optics,” in Nonimaging Optics and Efficient Illumination Systems IIIR. Winston and P. Benítez, eds., Proc. SPIE6338-21. 63380M-1–63380M-10 (2006)

Chaves, J.

J. Chaves, W. Falicoff, O. Dross, J.C. Miñano, P. Benítez, and W. A. Parkyn. “Combination of light sources and light distribution using manifold optics,” in Nonimaging Optics and Efficient Illumination Systems IIIR. Winston and P. Benítez, eds., Proc. SPIE6338-21. 63380M-1–63380M-10 (2006)

O. Dross, A. Cvetkovic, J. Chaves, P. Benitez, and J.C. Miñano, “LED Headlight Architecture that creates a High Quality Beam Pattern independent of LED Shortcomings,” in Nonimaging Optics and Efficient Illumination Systems II, R. WinstonJ. Koshel , eds., Proc. SPIE5942, 126–135 (2005).

Chaves, Julio

Oliver Dross, J.C. Miñano, Pablo Benitez, A. Cvetkovic, and Julio Chaves, “Non-imaging optics combine LEDs into one bright source,” in SPIE Newsroom, http://newsroom.spie.org/x3596.xml (2006).

Cvetkovic, A.

Oliver Dross, J.C. Miñano, Pablo Benitez, A. Cvetkovic, and Julio Chaves, “Non-imaging optics combine LEDs into one bright source,” in SPIE Newsroom, http://newsroom.spie.org/x3596.xml (2006).

O. Dross, A. Cvetkovic, J. Chaves, P. Benitez, and J.C. Miñano, “LED Headlight Architecture that creates a High Quality Beam Pattern independent of LED Shortcomings,” in Nonimaging Optics and Efficient Illumination Systems II, R. WinstonJ. Koshel , eds., Proc. SPIE5942, 126–135 (2005).

Dross, O.

O. Dross, A. Cvetkovic, J. Chaves, P. Benitez, and J.C. Miñano, “LED Headlight Architecture that creates a High Quality Beam Pattern independent of LED Shortcomings,” in Nonimaging Optics and Efficient Illumination Systems II, R. WinstonJ. Koshel , eds., Proc. SPIE5942, 126–135 (2005).

J. Chaves, W. Falicoff, O. Dross, J.C. Miñano, P. Benítez, and W. A. Parkyn. “Combination of light sources and light distribution using manifold optics,” in Nonimaging Optics and Efficient Illumination Systems IIIR. Winston and P. Benítez, eds., Proc. SPIE6338-21. 63380M-1–63380M-10 (2006)

O. Dross, P. Benitez, and J. C. Miñano et al, “Review of SMS Design Methods and Real World Applications,” in Nonimaging Optics and Efficient Illumination SystemsR. Winston and J. Koshel, eds., Proc. SPIE5529, (2004)
[CrossRef]

Dross, Oliver

Oliver Dross, J.C. Miñano, Pablo Benitez, A. Cvetkovic, and Julio Chaves, “Non-imaging optics combine LEDs into one bright source,” in SPIE Newsroom, http://newsroom.spie.org/x3596.xml (2006).

Falicoff, W.

J. Chaves, W. Falicoff, O. Dross, J.C. Miñano, P. Benítez, and W. A. Parkyn. “Combination of light sources and light distribution using manifold optics,” in Nonimaging Optics and Efficient Illumination Systems IIIR. Winston and P. Benítez, eds., Proc. SPIE6338-21. 63380M-1–63380M-10 (2006)

Gilbert, L.

M. Weber, C. Stover, L. Gilbert, T. Nevitt, and A. Ouderkirk “Giant Birefringent Optics in Multilayer Polymer Mirrors” Science, 287, 2451–2455 (2000)
[CrossRef] [PubMed]

Miñano, J. C.

O. Dross, P. Benitez, and J. C. Miñano et al, “Review of SMS Design Methods and Real World Applications,” in Nonimaging Optics and Efficient Illumination SystemsR. Winston and J. Koshel, eds., Proc. SPIE5529, (2004)
[CrossRef]

Miñano, J.C.

P. Benítez and J.C. Miñano, et al, “Simultaneous multiple surface optical design method in three dimensions”, Opt. Eng. 43, 1489–1502, (2004)
[CrossRef]

O. Dross, A. Cvetkovic, J. Chaves, P. Benitez, and J.C. Miñano, “LED Headlight Architecture that creates a High Quality Beam Pattern independent of LED Shortcomings,” in Nonimaging Optics and Efficient Illumination Systems II, R. WinstonJ. Koshel , eds., Proc. SPIE5942, 126–135 (2005).

Oliver Dross, J.C. Miñano, Pablo Benitez, A. Cvetkovic, and Julio Chaves, “Non-imaging optics combine LEDs into one bright source,” in SPIE Newsroom, http://newsroom.spie.org/x3596.xml (2006).

R. Winston, J.C. Miñano, and P. Benítez. Nonimaging Optics, Elsevier Academic Press, San Diego, CA, 2005

P. Benítez, R. Mohedano, and J.C. Miñano, “Design in 3D geometry with the Simultaneous Multiple Surface design method of Nonimaging Optics,” in Nonimaging Optics: Maximum Efficiency Light Transfer VR. WinstonJ. Koshel , eds., Proc. SPIE, 3781, 12–19 (1999).
[CrossRef]

J. Chaves, W. Falicoff, O. Dross, J.C. Miñano, P. Benítez, and W. A. Parkyn. “Combination of light sources and light distribution using manifold optics,” in Nonimaging Optics and Efficient Illumination Systems IIIR. Winston and P. Benítez, eds., Proc. SPIE6338-21. 63380M-1–63380M-10 (2006)

Mohedano, R.

P. Benítez, R. Mohedano, and J.C. Miñano, “Design in 3D geometry with the Simultaneous Multiple Surface design method of Nonimaging Optics,” in Nonimaging Optics: Maximum Efficiency Light Transfer VR. WinstonJ. Koshel , eds., Proc. SPIE, 3781, 12–19 (1999).
[CrossRef]

Muschaweck, J.A.

H. Ries and J.A. Muschaweck, “Tailoring freeform lenses for illuminations,” in Novel Optical Systems Design and Optimization IVR. Winston , Editor, Proc. SPIE4442, 43–50, (2001).
[CrossRef]

Nevitt, T.

M. Weber, C. Stover, L. Gilbert, T. Nevitt, and A. Ouderkirk “Giant Birefringent Optics in Multilayer Polymer Mirrors” Science, 287, 2451–2455 (2000)
[CrossRef] [PubMed]

Oliker, V.I.

V.I. Oliker and O. von Tempski, “On the design of reflectors with prespecified distribution of virtual sources and intensities,” Inverse problems 14, 661–678 (1998).
[CrossRef]

Ouderkirk, A.

M. Weber, C. Stover, L. Gilbert, T. Nevitt, and A. Ouderkirk “Giant Birefringent Optics in Multilayer Polymer Mirrors” Science, 287, 2451–2455 (2000)
[CrossRef] [PubMed]

Park, Jung-Hyang

Jung-Hyang Park and Jong-Youb Sah, “Design of Reflector Optics with Smooth Surface for Automotive Lamps,” in SAE 2001 World Congress: Lighting TechnologySAE Technical Papers, 2001

Parkyn, W. A.

J. Chaves, W. Falicoff, O. Dross, J.C. Miñano, P. Benítez, and W. A. Parkyn. “Combination of light sources and light distribution using manifold optics,” in Nonimaging Optics and Efficient Illumination Systems IIIR. Winston and P. Benítez, eds., Proc. SPIE6338-21. 63380M-1–63380M-10 (2006)

Ries, H.

H. Ries and J.A. Muschaweck, “Tailoring freeform lenses for illuminations,” in Novel Optical Systems Design and Optimization IVR. Winston , Editor, Proc. SPIE4442, 43–50, (2001).
[CrossRef]

Sah, Jong-Youb

Jung-Hyang Park and Jong-Youb Sah, “Design of Reflector Optics with Smooth Surface for Automotive Lamps,” in SAE 2001 World Congress: Lighting TechnologySAE Technical Papers, 2001

Stover, C.

M. Weber, C. Stover, L. Gilbert, T. Nevitt, and A. Ouderkirk “Giant Birefringent Optics in Multilayer Polymer Mirrors” Science, 287, 2451–2455 (2000)
[CrossRef] [PubMed]

von Tempski, O.

V.I. Oliker and O. von Tempski, “On the design of reflectors with prespecified distribution of virtual sources and intensities,” Inverse problems 14, 661–678 (1998).
[CrossRef]

Weber, M.

M. Weber, C. Stover, L. Gilbert, T. Nevitt, and A. Ouderkirk “Giant Birefringent Optics in Multilayer Polymer Mirrors” Science, 287, 2451–2455 (2000)
[CrossRef] [PubMed]

Winston, R.

R. Winston, J.C. Miñano, and P. Benítez. Nonimaging Optics, Elsevier Academic Press, San Diego, CA, 2005

Inverse problems (1)

V.I. Oliker and O. von Tempski, “On the design of reflectors with prespecified distribution of virtual sources and intensities,” Inverse problems 14, 661–678 (1998).
[CrossRef]

Opt. Eng. (1)

P. Benítez and J.C. Miñano, et al, “Simultaneous multiple surface optical design method in three dimensions”, Opt. Eng. 43, 1489–1502, (2004)
[CrossRef]

Other (14)

O. Dross, P. Benitez, and J. C. Miñano et al, “Review of SMS Design Methods and Real World Applications,” in Nonimaging Optics and Efficient Illumination SystemsR. Winston and J. Koshel, eds., Proc. SPIE5529, (2004)
[CrossRef]

O. Dross, A. Cvetkovic, J. Chaves, P. Benitez, and J.C. Miñano, “LED Headlight Architecture that creates a High Quality Beam Pattern independent of LED Shortcomings,” in Nonimaging Optics and Efficient Illumination Systems II, R. WinstonJ. Koshel , eds., Proc. SPIE5942, 126–135 (2005).

US Patent 6,639,733: “High Efficiency Non-Imaging Optics” Patent #, Issued Oct. 28, 2003. Inventors: Juan C. Minano, Pablo Benitez, Juan C. Gonzalez, Waqidi Falicoff and H. John Caulfield.

US Patent: “Three-Dimensional Simultaneous Multiple-Surface Method and Free-Form Illumination-Optics Designed Therefrom” (pending). Inventors: Pablo Benitez and Juan C. Minano.

R. Winston, J.C. Miñano, and P. Benítez. Nonimaging Optics, Elsevier Academic Press, San Diego, CA, 2005

For ECE specifications (i.e. Reg 112) see http://www.unece.org/trans/main/wp29/wp29regs.html

J. Chaves, W. Falicoff, O. Dross, J.C. Miñano, P. Benítez, and W. A. Parkyn. “Combination of light sources and light distribution using manifold optics,” in Nonimaging Optics and Efficient Illumination Systems IIIR. Winston and P. Benítez, eds., Proc. SPIE6338-21. 63380M-1–63380M-10 (2006)

Patent: “Optical manifold for light-emitting diodes” (international patents pending). Inventors: Julio Cesar Chavez, Waqidi Falicoff, Juan C. Minano, Pablo Benítez, Oliver Dross, William A. Parkyn, JR, Roberto Álvarez

M. Weber, C. Stover, L. Gilbert, T. Nevitt, and A. Ouderkirk “Giant Birefringent Optics in Multilayer Polymer Mirrors” Science, 287, 2451–2455 (2000)
[CrossRef] [PubMed]

For reflector characteristics see www.3m.com

Oliver Dross, J.C. Miñano, Pablo Benitez, A. Cvetkovic, and Julio Chaves, “Non-imaging optics combine LEDs into one bright source,” in SPIE Newsroom, http://newsroom.spie.org/x3596.xml (2006).

H. Ries and J.A. Muschaweck, “Tailoring freeform lenses for illuminations,” in Novel Optical Systems Design and Optimization IVR. Winston , Editor, Proc. SPIE4442, 43–50, (2001).
[CrossRef]

P. Benítez, R. Mohedano, and J.C. Miñano, “Design in 3D geometry with the Simultaneous Multiple Surface design method of Nonimaging Optics,” in Nonimaging Optics: Maximum Efficiency Light Transfer VR. WinstonJ. Koshel , eds., Proc. SPIE, 3781, 12–19 (1999).
[CrossRef]

Jung-Hyang Park and Jong-Youb Sah, “Design of Reflector Optics with Smooth Surface for Automotive Lamps,” in SAE 2001 World Congress: Lighting TechnologySAE Technical Papers, 2001

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Figures (6)

Fig. 1.
Fig. 1.

Munsell representation of typical (hypothetical) low beam pattern as seen shone against a wall at infinite distance; axes in degrees (right hand drive ECE low beam)

Fig. 2.
Fig. 2.

Schematic view of a Combiner RX module (left) and the full LED head lamp concept (right). The mirrors can be placed in many different configurations. The combiners can be covered to be invisible for the end user.

Fig. 3.
Fig. 3.

Schematic view of the LED combiner (left and center, dimensions are in mm)) and the source (1 and 2)/ combiner (3)/ free-form lens (4) (right);

Fig. 4.
Fig. 4.

Schematic design procedure for the XR SMS design. Left: design to create a seed curve. Center: design that creates SMS “chains” of points in space. Right: Schematic view of the far field creation with a free-form combiner/ XR. Some pinhole images of different points on the reflector are shown

Fig. 5.
Fig. 5.

Munsell far field representation of a high beam combiner/ XR pattern

Fig. 6.
Fig. 6.

Munsell far field representation of a low beam combiner/ XR pattern

Tables (1)

Tables Icon

Table 1. Results of ray-tracing simulations for low and high beam

Metrics