Theoretical and experimental analysis of modern zoom lens design

Xiangyang Wang; Weilin Liu

doi:10.1117/12.2257819

28 February 2017 Theoretical and experimental analysis of modern zoom lens design

Xiangyang Wang, Weilin Liu

Proceedings Volume 10256, Second International Conference on Photonics and Optical Engineering; 102563J (2017) https://doi.org/10.1117/12.2257819
Event: Second International Conference on Photonics and Optical Engineering, 2016, Xi'an, China

Abstract

The need for stability of aberration and correction of images for a zoom lens system should be considered during zooming process. Our work presents detailed theoretical and experimental analysis of multiple moving zoom optical systems. In our work we propose methods to determine the basic parameters of such optical system, the focal lengths of each element of the objective lens and their mutual axial separation. Introduce two different image stability equation and cam curve design method to calculate basic parameters. This type of optical system is widely spread in practice mainly in the field of photographic lenses and in surveying instruments (theodolites, leveling instruments, etc.). Furthermore, the detailed analysis of aberration properties of such optical systems is performed and methods for measuring the focal lengths of individual elements and their mutual distance without the need for disassembling the investigated optical system are presented. Finally according to theoretical and experimental analysis of zoom lens system, a zoom optical system with effective focal length 27-220mm has been design, the first element of such system is fixed, and the other groups can move during zoom process to get a continuity consecutiveness effective focal length (EFL). Using the powerful optimization capabilities of optical design software CODE V; we get the imaging quality analysis such as the modulation transfer function (MTF) etc.

Citation Download Citation

Xiangyang Wang and Weilin Liu "Theoretical and experimental analysis of modern zoom lens design", Proc. SPIE 10256, Second International Conference on Photonics and Optical Engineering, 102563J (28 February 2017); https://doi.org/10.1117/12.2257819

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KEYWORDS

Zoom lenses

Optical components

Content addressable memory

Lens design

Modulation transfer functions

Code v

Image processing

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