Bifocal autocollimation head for simultaneous tilt and shift determination in multi-element lenses for ultra-precision 5D adhesive bonding

Christian Wilde; Patrik Langehanenberg

doi:10.1117/12.2633040

3 October 2022 Bifocal autocollimation head for simultaneous tilt and shift determination in multi-element lenses for ultra-precision 5D adhesive bonding

Christian Wilde, Patrik Langehanenberg

Author Affiliations +

Proceedings Volume 12222, Optical System Alignment, Tolerancing, and Verification XIV; 1222208 (2022) https://doi.org/10.1117/12.2633040
Event: SPIE Optical Engineering + Applications, 2022, San Diego, California, United States

Abstract

The 5D-alignment of multi-element assemblies within a single barrel by adhesive bonding represents a powerful alternative to the sub-cell mounting concept. A bifocal autocollimation head offers efficient and simultaneous monitoring of the single element’s tilt and shift within the cell and minimizes the impact of error propagation. The described process allows for production of mounted lenses with an outstanding alignment precision below 1 μm in all dimensions in less than 3 minutes per lens element. The automated process greatly simplifies the transfer of existing, conventional optomechanical designs to higher performance independent of the number of lens elements in the assembly.

Conference Presentation

Citation Download Citation

Christian Wilde and Patrik Langehanenberg "Bifocal autocollimation head for simultaneous tilt and shift determination in multi-element lenses for ultra-precision 5D adhesive bonding", Proc. SPIE 12222, Optical System Alignment, Tolerancing, and Verification XIV, 1222208 (3 October 2022); https://doi.org/10.1117/12.2633040

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