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Proceedings Paper

Smart and precise alignment of optical systems
Author(s): Patrik Langehanenberg; Josef Heinisch; Daniel Stickler
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Paper Abstract

For the assembly of any kind of optical systems the precise centration of every single element is of particular importance. Classically the precise alignment of optical components is based on the precise centering of all components to an external axis (usually a high-precision rotary spindle axis). Main drawback of this timeconsuming process is that it is significantly sensitive to misalignments of the reference (e.g. the housing) axis. In order to facilitate process in this contribution we present a novel alignment strategy for the TRIOPTICS OptiCentric® instrument family that directly aligns two elements with respect to each other by measuring the first element’s axis and using this axis as alignment reference without the detour of considering an external reference. According to the optical design any axis in the system can be chosen as target axis. In case of the alignment to a barrel this axis is measured by using a distance sensor (e.g., the classically used dial indicator). Instead of fine alignment the obtained data is used for the calculation of its orientation within the setup. Alternatively, the axis of an optical element (single lens or group of lenses) whose orientation is measured with the standard OptiCentric MultiLens concept can be used as a reference. In the instrument’s software the decentering of the adjusting element to the calculated axis is displayed in realtime and indicated by a target mark that can be used for the manual alignment. In addition, the obtained information can also be applied for active and fully automated alignment of lens assemblies with the help of motorized actuators.

Paper Details

Date Published: 15 October 2013
PDF: 8 pages
Proc. SPIE 8884, Optifab 2013, 88842E (15 October 2013); doi: 10.1117/12.2034592
Show Author Affiliations
Patrik Langehanenberg, TRIOPTICS GmbH (Germany)
Josef Heinisch, TRIOPTICS GmbH (Germany)
Daniel Stickler, TRIOPTICS GmbH (Germany)

Published in SPIE Proceedings Vol. 8884:
Optifab 2013
Julie L. Bentley; Matthias Pfaff, Editor(s)

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