Simultaneous multiple surfaces method applied to infrared lenses

T. Mayeur; J. B. Volatier; G. Druart; E. Tartas; A. Durand; F. Cau

doi:10.1117/12.2632432

3 October 2022 Simultaneous multiple surfaces method applied to infrared lenses

T. Mayeur, J. B. Volatier, G. Druart, E. Tartas, A. Durand, F. Cau

Proceedings Volume 12217, Current Developments in Lens Design and Optical Engineering XXIII; 1221702 (2022) https://doi.org/10.1117/12.2632432
Event: SPIE Optical Engineering + Applications, 2022, San Diego, California, United States

Abstract

In optical design, the designer's experience is critical. Indeed, an experienced optical designer will often choose a better starting point for optimization than an inexperienced one. Most of the time, lens design software use a local optimization algorithm, which is why the starting point is so important to get an excellent optical system. We present here an alternative to the classical optical design method and a solution to reduce the impact of the designer's experience. Our alternative couples the Simultaneous Multiple Surfaces (SMS) method, introduced by Benítez and Miñano with optimization in Zemax OpticStudio. The SMS method is a direct construction method of optical systems without optical aberrations for as many field points as the system contains surfaces. This method can deal with both aspheric and freeform optical systems depending on the dimension of the method implemented. Our implementation of the SMS method can design optical systems with three surfaces. We use the SMS method to define a freeform system with an F-number of 0.85. Then, we use this fast freeform system as a starting point to perform further optimization in Zemax OpticStudio. Finally, we achieve to design two diffraction-limited freeform systems, one over a square field of view of ±30° and another over a rectangular field of view of ±33° × ±26°.

Citation Download Citation

T. Mayeur, J. B. Volatier, G. Druart, E. Tartas, A. Durand, and F. Cau "Simultaneous multiple surfaces method applied to infrared lenses", Proc. SPIE 12217, Current Developments in Lens Design and Optical Engineering XXIII, 1221702 (3 October 2022); https://doi.org/10.1117/12.2632432

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KEYWORDS

Optical design

Sensors

Long wavelength infrared

Zemax

Computing systems

Ray tracing

Freeform optics

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