Design of a Cooke triplet by optimization technique

Wen-Shing Sun; Hong Chang; Ching-Cherng Sun; Ming-Wen Chang; Chuen-Lin Tien

doi:10.1117/12.449967

10 December 2001 Design of a Cooke triplet by optimization technique

Wen-Shing Sun, Hong Chang, Ching-Cherng Sun, Ming-Wen Chang, Chuen-Lin Tien

Proceedings Volume 4442, Novel Optical Systems Design and Optimization IV; (2001) https://doi.org/10.1117/12.449967
Event: International Symposium on Optical Science and Technology, 2001, San Diego, CA, United States

Abstract

A simple and direct method using these equations to correct real aberrations and to find the minimum aberration of the system has been suggested. The calculated third-order aberration can exactly meet the target values at each stage by means of the damped least-squares method. The spherical aberration is first targeted to get the minimal value of an on-axis aberration corresponding to the real aberration. Similarly, the coma and astigmatism target values are adjusted to force off-axis real aberrations at the 1.0 field angle down to the minimum. Finally, the minimum aberration at the field angle of 0.7 is fulfilled by the manual variation of the lens thickness and lens spacing. Two examples of triplet designs are presented.

Citation Download Citation

Wen-Shing Sun, Hong Chang, Ching-Cherng Sun, Ming-Wen Chang, and Chuen-Lin Tien "Design of a Cooke triplet by optimization technique", Proc. SPIE 4442, Novel Optical Systems Design and Optimization IV, (10 December 2001); https://doi.org/10.1117/12.449967

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