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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 46, Iss. 13 — May. 1, 2007
  • pp: 2401–2410

Eliminating chromatic aberration in Gauss-type lens design using a novel genetic algorithm

Yi-Chin Fang, Chen-Mu Tsai, John MacDonald, and Yang-Chieh Pai  »View Author Affiliations


Applied Optics, Vol. 46, Issue 13, pp. 2401-2410 (2007)
http://dx.doi.org/10.1364/AO.46.002401


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Abstract

Two different types of Gauss lens design, which effectively eliminate primary chromatic aberration, are presented using an efficient genetic algorithm (GA). The current GA has to deal with too many targets in optical global optimization so that the performance is not much improved. Generally speaking, achromatic aberrations have a great relationship with variable glass sets for all elements. For optics whose design is roughly convergent, glass sets for optics will play a significant role in axial and lateral color aberration. Therefore better results might be derived from the optimal process of eliminating achromatic aberration, which could be carried out by finding feasible glass sets in advance. As an alternative, we propose a new optimization process by using a GA and involving theories of geometrical optics in order to select the best optical glass combination. Two Gauss-type lens designs are employed in this research. First, a telephoto lens design is sensitive to axial aberration because of its long focal length, and second, a wide-angle Gauss design is complicated by lateral color aberration at the extreme corners because Gauss design is well known not to deal well with wide-angle problems. Without numbers of higher chief rays passing the element, it is difficult to correct lateral color aberration altogether for the Gauss design. The results and conclusions show that the attempts to eliminate primary chromatic aberrations were successful.

© 2007 Optical Society of America

OCIS Codes
(220.0220) Optical design and fabrication : Optical design and fabrication
(220.2740) Optical design and fabrication : Geometric optical design
(220.4830) Optical design and fabrication : Systems design

ToC Category:
Optical Design and Fabrication

History
Original Manuscript: August 28, 2006
Revised Manuscript: December 6, 2006
Manuscript Accepted: December 8, 2006
Published: April 9, 2007

Citation
Yi-Chin Fang, Chen-Mu Tsai, John MacDonald, and Yang-Chieh Pai, "Eliminating chromatic aberration in Gauss-type lens design using a novel genetic algorithm," Appl. Opt. 46, 2401-2410 (2007)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-46-13-2401

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