An optimal lens arrangement in high numerical aperture objectives

Lev Ryzhikov

doi:10.1117/12.2593022

1 August 2021 An optimal lens arrangement in high numerical aperture objectives

Lev Ryzhikov

Proceedings Volume 11814, Current Developments in Lens Design and Optical Engineering XXII; 118140K (2021) https://doi.org/10.1117/12.2593022
Event: SPIE Optical Engineering + Applications, 2021, San Diego, California, United States

Conference Poster

Abstract

Demand for High NA objective lenses with diffraction limited image quality is growing. This demand translates in design more complex optical system with many optical components. In order to optimize the most favorable arrangement of optical components new design methodology based on functional separation lens group in high numerical aperture (NA) objective was developed. For this purpose, all lens components were divided on the three-lens group: front group, middle group and output lens group. The front lens group includes front lens (thick meniscus for dry type of objective or thick plano-convex lens for immersion objective) and several aplanatic shape meniscus lenses. The middle lens group consists of several cemented lens components (doublets or triplets) and output lens group includes “Double Gauss” lens system or combination of cemented doublet with one or two singlet lenses. The total number of lenses in such types of optical system can reach 15-16 or even more. Design an optimal composition (optical components arrangement) for high numerical aperture objective lens will be discussed. Quantitative related parameter for optimal objective lens component’s structure will be proposed.

Citation Download Citation

Lev Ryzhikov "An optimal lens arrangement in high numerical aperture objectives", Proc. SPIE 11814, Current Developments in Lens Design and Optical Engineering XXII, 118140K (1 August 2021); https://doi.org/10.1117/12.2593022

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