Optimization of Free-Form Illumination Optics

Kari Kataja, Mika Aikio, Karri Niemelä, Mauri Aikio

Research output: Chapter in Book/Report/Conference proceedingChapter or book articleScientific

2 Citations (Scopus)


We have developed optimization methods for generating free-form surfaces. The main applications are in the industrial on-line spectroscopic and machine visions measurements, where spectral and spatial uniformity, good efficiency and pass-line stability are required parameters. We used commercial software for ray-tracing engine. We have developed in-house optimization routines, but used also build-in functions. In this work we have designed a speckle free alternative for laser line generation based on the LED sources. The optical system is based on the collimation part and a free-form mirror. Simulation results are presented.
Original languageEnglish
Title of host publicationKey Engineering Materials
EditorsGuo Fan Jin, Wing Bun Lee, Chi Fai Cheung, Suet To
Place of PublicationSwitzerland
PublisherTrans Tech Publications
ISBN (Print)978-0-87849-458-3
Publication statusPublished - 2008
MoE publication typeB2 Part of a book or another research book

Publication series

SeriesKey Engineering Materials


  • Illumination
  • free-form
  • optimization


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