From design to assembly: getting the most from your optical software

Mary G. Turner; Jon A. Herlocker

doi:10.1117/12.829202

21 August 2009 From design to assembly: getting the most from your optical software

Mary G. Turner, Jon A. Herlocker

Proceedings Volume 7433, Optical System Alignment, Tolerancing, and Verification III; 74330N (2009) https://doi.org/10.1117/12.829202
Event: SPIE Optical Engineering + Applications, 2009, San Diego, California, United States

Abstract

Sequential and non-sequential optical codes can be used for much more than the initial design and analysis of idealized optical and illumination systems. The design process usually assumes ideal components, ignoring realistic properties such as surface and volume scatter, Fresnel reflections, and polarization aberrations. These codes can also be used to perform tolerance analysis on these designs to help determine manufacturability limits. An important extension in the use of these programs is to create simulations based on the as-built components which include realistic optical surface and scatter scenarios. For example, modeling the measured optical quality of a fabricated primary mirror surface provides the opportunity to modify other optical or mechanical parameters to compensate for any surface errors, which in turn, can relieve critical tolerance limits. Optical analysis codes can also be used to model the performance of an optical system during assembly and testing to isolate defects and perturbations which cause the system performance to be out of specification. Interferometric or polarimetric data measured at several locations across the field of view can be used in the optical program to help identify out of tolerance components. These capabilities are of particular importance in eccentric systems as well as in polarization critical systems, provided the optical code can realistically model data in this form.

Citation Download Citation

Mary G. Turner and Jon A. Herlocker "From design to assembly: getting the most from your optical software", Proc. SPIE 7433, Optical System Alignment, Tolerancing, and Verification III, 74330N (21 August 2009); https://doi.org/10.1117/12.829202

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KEYWORDS

Tolerancing

Computer aided design

Polarization

Data modeling

Optics manufacturing

Performance modeling

Systems modeling

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