25 September 1997 Design of a magnification and rotation unit with predesign tool POCAD
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Abstract
The design of multi-component optical systems can be supported by software tools. Designers are known to change often between different levels of abstraction, sometimes characterizing a lens only by its focal length and at other times giving a full description of the magnetic circuit. A design tool should be able to follow these changes in approach. We illustrate the use of such a tool by describing the design process of an optical system. The example shows the use of different abstraction levels and the program's ability to define constraints such as staying in focus and at a set magnification while optimizing the system's parameters. The optical system which is chosen for the example must image an object to an image plane with variable magnification and variable rotation while obeying certain requirements on resolution and distortion.
© (1997) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Michael Andrianus Johannes van der Stam, Michael Andrianus Johannes van der Stam, Bas Mertens, Bas Mertens, Pieter Kruit, Pieter Kruit, } "Design of a magnification and rotation unit with predesign tool POCAD", Proc. SPIE 3155, Charged Particle Optics III, (25 September 1997); doi: 10.1117/12.287817; https://doi.org/10.1117/12.287817
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