Mechanically compensated type for midwave infrared zoom system with a large zoom ratio

Zhou, Hao; Liu, Ying; Sun, Quan; Li, Chun; Zhang, Xiaolong; Huang, Jianbo

doi:10.1117/1.oe.52.1.013002

Cited by 1 publication

(1 citation statement)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…When designing an optical system, the selection of the initial structure is crucial for achieving the final design requirements. The proposed design refers to the common structure of mechanically compensated zoom systems [20], and the zoom system designed in this paper is composed of four groups. The layout of the zoom system is shown in Figure 1.…”

Section: Derivation Of the Zoom Equationmentioning

confidence: 99%

Flexible Zoom Telescopic Optical System Design Based on Genetic Algorithm

et al. 2022

View full text Add to dashboard Cite

The performance of current liquid zoom systems is severely limited by their initial structure’s construction and solution. In this study, an automatic search method based on genetic algorithm (GA) was proposed for obtaining the optimal initial structure of a double liquid lens zoom optical system. This method was used to design a zoom telescopic objective with a fast response characteristic. The zoom equation of the zoom system was derived based on the Gaussian bracket method, and an initial structure evaluation function that integrated the aberration, the system length, and the smoothness of the focal power change in the liquid lenses was designed. This evaluation function was used as the fitness function in GA to automatically retrieve the optimal initial structure of the zoom system. Finally, an optical design software was used to optimize the design of the zoom system to obtain the final structure of the zoom system. Image quality analysis and tolerance analysis of the zoom system revealed that the system exhibited excellent imaging capability and could be manufactured easily. In addition, the analysis of the zoom curve revealed that the optical system exhibited a smooth continuous zooming capability.

show abstract

Section: Derivation Of the Zoom Equationmentioning

confidence: 99%