Tolerancing aspheric surfaces in optical design

U. Fuchs

doi:10.1117/12.2186405

3 September 2015 Tolerancing aspheric surfaces in optical design

U. Fuchs

Proceedings Volume 9582, Optical System Alignment, Tolerancing, and Verification IX; 958205 (2015) https://doi.org/10.1117/12.2186405
Event: SPIE Optical Engineering + Applications, 2015, San Diego, California, United States

Abstract

Aspheres are becoming very popular in optical design for reducing size and weight of optical systems or even allowing for novel optical performance. Innovative manufacturing enables this trend. Unfortunately, due to the type of surface form deviation introduced by CNC based grinding and polishing processes, tolerancing an optical system with aspheric surfaces becomes very complicated. Especially for serial production it is critical to know just how “good” an asphere has to be in order to guarantee the optical performance needed without overdoing it. It will be demonstrated how to overcome this limitation up to a certain level.

Citation Download Citation

U. Fuchs "Tolerancing aspheric surfaces in optical design", Proc. SPIE 9582, Optical System Alignment, Tolerancing, and Verification IX, 958205 (3 September 2015); https://doi.org/10.1117/12.2186405

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