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

Full Article  |  PDF Article

References

  • View by:
  • |
  • |
  • |

  1. J.-H. Park and J.-Y. Sah, "Design of reflector optics with smooth surface for automotive lamps," in SAE 2001 World Congress: Lighting Technology, SAE 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 Probl. 14, 661-678 (1998).
    [CrossRef]
  3. H. Ries and J. A. Muschaweck, "Tailoring freeform lenses for illuminations," in Novel Optical Systems Design and Optimization IV, Proc. SPIE 4442, 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, 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, J. C. Miñano,  et al, "Review of SMS design methods and real world applications," in Nonimaging Optics and Efficient Illumination Systems,Proc. SPIE 5529, 35-47 (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, Proc. SPIE 5942, 126-135 (2005).
  8. J. C. Minano, P. Benitez, J. C. Gonzalez, W. Falicoff and H. J. Caulfield, "High Efficiency Non-Imaging Optics," US Patent 6,639,733 (28 Oct. 2003).
  9. P. Benitez and J. C. Minano, "Three-dimensional simultaneous multiple-surface method and free-form illumination-optics designed therefrom," US Patent: (pending).
  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 III, Proc. SPIE 6338-21. 63380M-1 - 63380M-10 (2006).
  13. J. C. Chavez, W. Falicoff, J. C. Minano, P. Benítez, O. Dross, W. A. Parkyn, Jr, and R. Álvarez, "Optical manifold for light-emitting diodes," (International Patent pending).
  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. O. Dross, J. C. Miñano, P. Benitez, A. Cvetkovic, and J. Chaves, "Non-imaging optics combine LEDs into one bright source," in SPIE Newsroom, http://newsroom.spie.org/x3596.xml (2006).

2005 (1)

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, Proc. SPIE 5942, 126-135 (2005).

2004 (2)

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, P. Benitez, J. C. Miñano,  et al, "Review of SMS design methods and real world applications," in Nonimaging Optics and Efficient Illumination Systems,Proc. SPIE 5529, 35-47 (2004).
[CrossRef]

2001 (1)

H. Ries and J. A. Muschaweck, "Tailoring freeform lenses for illuminations," in Novel Optical Systems Design and Optimization IV, Proc. SPIE 4442, 43-50 (2001).
[CrossRef]

2000 (1)

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]

1999 (1)

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, Proc. SPIE 3781, 12-19 (1999).
[CrossRef]

1998 (1)

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

Benitez, P.

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, Proc. SPIE 5942, 126-135 (2005).

O. Dross, P. Benitez, J. C. Miñano,  et al, "Review of SMS design methods and real world applications," in Nonimaging Optics and Efficient Illumination Systems,Proc. SPIE 5529, 35-47 (2004).
[CrossRef]

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]

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, Proc. SPIE 3781, 12-19 (1999).
[CrossRef]

Chaves, J.

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, Proc. SPIE 5942, 126-135 (2005).

Cvetkovic, A.

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, Proc. SPIE 5942, 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, Proc. SPIE 5942, 126-135 (2005).

O. Dross, P. Benitez, J. C. Miñano,  et al, "Review of SMS design methods and real world applications," in Nonimaging Optics and Efficient Illumination Systems,Proc. SPIE 5529, 35-47 (2004).
[CrossRef]

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, 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, Proc. SPIE 5942, 126-135 (2005).

O. Dross, P. Benitez, J. C. Miñano,  et al, "Review of SMS design methods and real world applications," in Nonimaging Optics and Efficient Illumination Systems,Proc. SPIE 5529, 35-47 (2004).
[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, Proc. SPIE 3781, 12-19 (1999).
[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]

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, 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 IV, Proc. SPIE 4442, 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 Probl. 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]

Ries, H.

H. Ries and J. A. Muschaweck, "Tailoring freeform lenses for illuminations," in Novel Optical Systems Design and Optimization IV, Proc. SPIE 4442, 43-50 (2001).
[CrossRef]

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 Probl. 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]

Inverse Probl. (1)

V. I. Oliker and O. von Tempski, "On the design of reflectors with prespecified distribution of virtual sources and intensities," Inverse Probl. 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]

Proc. SPIE (4)

O. Dross, P. Benitez, J. C. Miñano,  et al, "Review of SMS design methods and real world applications," in Nonimaging Optics and Efficient Illumination Systems,Proc. SPIE 5529, 35-47 (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, Proc. SPIE 5942, 126-135 (2005).

H. Ries and J. A. Muschaweck, "Tailoring freeform lenses for illuminations," in Novel Optical Systems Design and Optimization IV, Proc. SPIE 4442, 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, Proc. SPIE 3781, 12-19 (1999).
[CrossRef]

Science (1)

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]

Other (9)

For reflector characteristics see www.3m.com

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

J.-H. Park and J.-Y. Sah, "Design of reflector optics with smooth surface for automotive lamps," in SAE 2001 World Congress: Lighting Technology, SAE Technical Papers, 2001.

J. C. Minano, P. Benitez, J. C. Gonzalez, W. Falicoff and H. J. Caulfield, "High Efficiency Non-Imaging Optics," US Patent 6,639,733 (28 Oct. 2003).

P. Benitez and J. C. Minano, "Three-dimensional simultaneous multiple-surface method and free-form illumination-optics designed therefrom," US Patent: (pending).

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 III, Proc. SPIE 6338-21. 63380M-1 - 63380M-10 (2006).

J. C. Chavez, W. Falicoff, J. C. Minano, P. Benítez, O. Dross, W. A. Parkyn, Jr, and R. Álvarez, "Optical manifold for light-emitting diodes," (International Patent pending).

Cited By

OSA participates in CrossRef's Cited-By Linking service. Citing articles from OSA journals and other participating publishers are listed here.

Alert me when this article is cited.


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