14 December 2001 Zoom lens without focus-breathing phenomena
Author Affiliations +
Abstract
Assuming that exit pupil position is fixed, it is presented a zoom lens having a focusing mechanism which does not give rise to any changes in the angular field of view. A frontal part set in front of the zooming part consists of two movable components for focusing. The paraxial condition in which no focus breathing phenomena exist is, in general, derived. Explicit expressions of component-displacement are obtained together with the relation to one-movable component focusing method. According to the analysis, a zoom lens is designed to show the usefulness of the analysis.
© (2001) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Kazuo Tanaka, Kazuo Tanaka, } "Zoom lens without focus-breathing phenomena", Proc. SPIE 4487, Zoom Lenses III, (14 December 2001); doi: 10.1117/12.450421; https://doi.org/10.1117/12.450421
PROCEEDINGS
5 PAGES


SHARE
RELATED CONTENT

Null Ronchi-Hartmann test for an aspheric concave mirror
Proceedings of SPIE (November 18 2013)
A new method to treat a spherical lens as a...
Proceedings of SPIE (November 03 2003)
The Modern Zoom Lens For 35 Millimeter Photography
Proceedings of SPIE (July 26 1985)
Split Lens Stadimeter For Submarine Periscope
Proceedings of SPIE (October 03 1983)
Survey of zoom lenses
Proceedings of SPIE (September 25 1997)

Back to Top