Design Of Mirrors With Segmented Conical Surfaces Tangent To A Discontinuous Aspheric Base

Victor J. Doherty

doi:10.1117/12.935440

26 October 1983 Design Of Mirrors With Segmented Conical Surfaces Tangent To A Discontinuous Aspheric Base

Victor J. Doherty

Proceedings Volume 0399, Optical System Design, Analysis, and Production; (1983) https://doi.org/10.1117/12.935440
Event: 1983 International Technical Conference/Europe, 1983, Geneva, Switzerland

Abstract

A unique mirror surface profile has been developed to produce annular, radial, or circular images of uniform intensity from incident radiation of non-uniform illumination. The design principles are ideally suited for industrial high power laser applications as well as for concentrator/integrator mirrors in the Abbe type condenser systems. The reflective surface is a series of segmented conical flats tangent to a discontinuous base aspheric. Each conical segment of specified width redirects the input light to a common image. The net contribution from all of the segments is a highly uniform intensity integrated image. The design procedure is represented in three stages, (1) optimizing the curvature and aspheric coefficients of the base curve; (2) calculating the point of tangency and width of each conical segment; (3) shifting the coordinate system to obtain the required annular or radial image dimensions. To facilitate the design, a semi-automatic computer program was written since commercially available optical design software does not handle discontinuous surfaces. Three examples of mirror designs will be presented.

Citation Download Citation

Victor J. Doherty "Design Of Mirrors With Segmented Conical Surfaces Tangent To A Discontinuous Aspheric Base", Proc. SPIE 0399, Optical System Design, Analysis, and Production, (26 October 1983); https://doi.org/10.1117/12.935440

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