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Proceedings Article

Incoherent beam shaping with freeform mirror

[+] Author Affiliations
Dirk Michaelis, Sergey Kudaev, Ralf Steinkopf, Andreas Gebhardt, Peter Schreiber, Andreas Bräuer

Fraunhofer Institute for Applied Optics and Precision Engineering (Germany)

Proc. SPIE 7059, Nonimaging Optics and Efficient Illumination Systems V, 705905 (August 28, 2008); doi:10.1117/12.794872
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From Conference Volume 7059

  • Nonimaging Optics and Efficient Illumination Systems V
  • Roland Winston; R. John Koshel
  • San Diego, California, USA | August 10, 2008

abstract

Beam shaping of incoherent light sources (LEDs, halogen lamps) for arbitrary target light distribution is obtained by a single free-shape mirror. Special design algorithm ensures continuous profile without abrupt changes and shadowing regions. The mirror is manufactured by single point diamond turning combined with Fast-Tool-Servo (FTS) for simultaneous figuring of base surface and fine structure (for redistributing the light energy). Lateral and axial resolution of the fine structure is determined by FTS and considered during the design and data transfer. Directly turned surfaces can be used as replication tools for polymer or glass moulding and embossing.

© (2008) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Dirk Michaelis ; Sergey Kudaev ; Ralf Steinkopf ; Andreas Gebhardt ; Peter Schreiber, et al.
"Incoherent beam shaping with freeform mirror", Proc. SPIE 7059, Nonimaging Optics and Efficient Illumination Systems V, 705905 (August 28, 2008); doi:10.1117/12.794872; http://dx.doi.org/10.1117/12.794872


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