Translator Disclaimer
14 October 2005 OPIC: a kit for rapid merit function construction for use with all versions of OSLO, including OSLO EDU
Author Affiliations +
The history of lens design software is sadly littered with accounts of excellent programs which fell by the wayside for lack of support. Others evolved through various package formats to form the foundation of today's very successful commercial software. One example of this is the Imperial College lens design program developed throughout the 1960s, 1970s and 1980s by Charles Wynne, Michael Kidger, Prudence Wormell, and others. This program (best known as the Kidger Optics Ltd SIGMA) produced many excellent designs over the years. One reason was that the ray patterns and weighting factors for operands in the default merit function had been carefully honed through experience, to produce rapid convergence on the global optimum from a likely starting point. This paper describes a suite of optimisation raysets and weighted operands written in the C-like OSLO compiled macro language CCL, and modeled on the Imperial College tradition. It is available for free download from Its prime function is to provide a fast, easily understood introduction to merit function construction for the beginner. One version is for use on OSLO EDU, the free version of OSLO, which is also available from the Lambda Research Corporation website. This paper demonstrates how OPIC can be used to locate, from a remote starting point, the global minimum of the "monochromatic quartet," the lens design problem from the SPIE 1990 International Lens Design Conference.
© (2005) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Brian Blandford "OPIC: a kit for rapid merit function construction for use with all versions of OSLO, including OSLO EDU", Proc. SPIE 5962, Optical Design and Engineering II, 59620G (14 October 2005);


Design of Cooke triplet anastigmats the effect of non...
Proceedings of SPIE (September 15 1995)
A design method for quasi-symmetrical wide angle systems
Proceedings of SPIE (February 18 2004)
Glass choice in the Tessar anastigmat
Proceedings of SPIE (August 18 2005)
The Sample Problem A Comparative Study Of Lens Design...
Proceedings of SPIE (September 16 1980)

Back to Top