Flat target method: mitigation of errors in quad target method

Rupert S. Cooper; Matthew E. L. Jungwirth

doi:10.1117/12.2632805

3 October 2022 Flat target method: mitigation of errors in quad target method

Rupert S. Cooper, Matthew E. L. Jungwirth

Proceedings Volume 12222, Optical System Alignment, Tolerancing, and Verification XIV; 1222207 (2022) https://doi.org/10.1117/12.2632805
Event: SPIE Optical Engineering + Applications, 2022, San Diego, California, United States

Abstract

Quality of focus is a critical requirement for structured light illumination (SLI) systems. We present further development of the quad target method, an alignment technique to linearize defocus for SLI systems, by substituting a flat target continuously toggling between two positions. The flat target method enables granular near-real time projector focus assessment with a more universal target and mitigated errors compared to the quad target method.

Conference Presentation

Citation Download Citation

Rupert S. Cooper and Matthew E. L. Jungwirth "Flat target method: mitigation of errors in quad target method", Proc. SPIE 12222, Optical System Alignment, Tolerancing, and Verification XIV, 1222207 (3 October 2022); https://doi.org/10.1117/12.2632805

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