Translator Disclaimer
25 September 1997 Pupil aberration in zoom lenses
Author Affiliations +
Abstract
In any zoom lens, individual zoom groups experience both image and pupil magnification changes during zooming. Deliberate aberration can be introduced into zoom groups to produce an overall compensatory effect over the zoom range. When using a modular design approach, in which lens groups are designed independently, one has to take into account pupil matching among zoom groups. This is analogous to the design of relay optical systems. In a zoom lens, pupil matching becomes a dynamic problem. Perfect pupil matching among zoom groups in theory cannot be maintained for a continuum of zoom positions. With the deliberate introduction of pupil aberration on the group level, compensatory effects can be obtained and a more desirable pupil match can be achieved, resulting in better stability of system image performance over the zoom range. This paper presents a systematic explanation on how pupil spherical aberration can be used in controlling residual system distortion in zoom lenses. The study involves "black box" lens modules design with the help of computer ray trace program.
© (1997) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Matthew T. Chang and Robert R. Shannon "Pupil aberration in zoom lenses", Proc. SPIE 3129, Zoom Lenses II, (25 September 1997); https://doi.org/10.1117/12.284238
PROCEEDINGS
12 PAGES


SHARE
Advertisement
Advertisement
RELATED CONTENT

Toward the global optimum in zoom lens design
Proceedings of SPIE (October 19 2012)
Lens Design Without A Computer
Proceedings of SPIE (December 01 1978)
Optical Design Optimization With A Personal Computer
Proceedings of SPIE (November 07 1983)
Zoom lens design
Proceedings of SPIE (December 14 2001)
Optical design of a wide-angle simulator probe
Proceedings of SPIE (August 23 1996)

Back to Top