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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 22, Iss. 3 — Feb. 10, 2014
  • pp: 3362–3374

Design of freeform imaging systems with linear field-of-view using a construction and iteration process

Tong Yang, Jun Zhu, and Guofan Jin  »View Author Affiliations

Optics Express, Vol. 22, Issue 3, pp. 3362-3374 (2014)

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In this paper, a design method based on a construction and iteration process is proposed for designing freeform imaging systems with linear field-of-view (FOV). The surface contours of the desired freeform surfaces in the tangential plane are firstly designed to control the tangential rays of multiple field angles and different pupil coordinates. Then, the image quality is improved with an iterative process. The design result can be taken as a good starting point for further optimization. A freeform off-axis scanning system is designed as an example of the proposed method. The convergence ability of the construction and iteration process to design a freeform system from initial planes is validated. The MTF of the design result is close to the diffraction limit and the scanning error is less than 1μm. This result proves that good image quality and scanning linearity were achieved.

© 2014 Optical Society of America

OCIS Codes
(080.2740) Geometric optics : Geometric optical design
(080.4035) Geometric optics : Mirror system design

ToC Category:
Imaging Systems

Original Manuscript: November 12, 2013
Revised Manuscript: January 28, 2014
Manuscript Accepted: January 29, 2014
Published: February 5, 2014

Tong Yang, Jun Zhu, and Guofan Jin, "Design of freeform imaging systems with linear field-of-view using a construction and iteration process," Opt. Express 22, 3362-3374 (2014)

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