Effects of fabrication errors in the diffractive optical element on the modulation transfer function of a hybrid lens

Hyun Choi, Wan Chin Kim, Sang Hyuck Lee, No Cheol Park, Und Young Pil Park

Research output: Contribution to journalArticle

6 Citations (Scopus)


Diffractive optical elements (DOEs) are often used to improve the performance of optical systems. However, when a blazed DOE is machined, shape errors can be generated in the discontinuity region of the DOE due to the finite radius of the processing tool. We simulated the effects of this shape error on the optical path and modulation transfer function (MTF) in a hybrid lens for a compact camera module. The decrease rate of the MTF was larger in the low-spatial-frequency domain and when the light entered at a low incident angle.

Original languageEnglish
Pages (from-to)2764-2766
Number of pages3
JournalJournal of the Optical Society of America A: Optics and Image Science, and Vision
Issue number11
Publication statusPublished - 2008 Nov 1


All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Computer Vision and Pattern Recognition

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