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Proceedings Paper

Hexapod as primary kinematic system for applications in the optic industry
Author(s): R. Schneider; C. Trum
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Paper Abstract

The trend in the optic industry shows, that it is increasingly important to be able to manufacture complex lens geometries on a high level of precision. The most interesting geometries are aspheric and free-form surfaces, which can only be produced with a huge time and cost effort until today. With these geometries it is possible to replace a number of spherical lens with just one aspheric or one free-form lens. As a result, installation space and weight are reduced, as well as scarce resources can be protected.

The goal of the research project ArenA-FOi (Application-oriented analysis of resource-saving and energy-efficient design of industrial facilities for the optical industry) is to create a new processing machine for manufacturing high precision optics. The primary kinematic system of the new machine is a Hexapod, which stands for high precision positioning and repeated accuracy. In addition, a Hexapod system is characterized by high stiffness and the reduction of mass, compared to existing machines. In the first phase of the project, the focus is on the machine concept, based on the required product range. Furthermore, it should be possible to create spiral and raster tool-paths for the process of machining. Especially, the raster tool-path is only applicable by a high radius of curvature which is limited by the maximum inclination of the Hexapod. If the result of the machine concept shows that an additional axis is needed, this axis must ensure synchronous control. Up to now, the processing of aspherical lenses is carried out by using the dwell time and vertical machining for the spherical best fit geometry. In this research project, we want to machine surface normal at every single point of the entries process and we also expect a quality improvement.

In this paper, only the project concept and the project's first phase — the plant construction and the development of aspherical surfaces — are discussed.

Paper Details

Date Published: 30 June 2016
PDF: 7 pages
Proc. SPIE 10009, Third European Seminar on Precision Optics Manufacturing, 1000906 (30 June 2016); doi: 10.1117/12.2235400
Show Author Affiliations
R. Schneider, Technische Hochschule Deggendorf (Germany)
C. Trum, Technische Hochschule Deggendorf (Germany)


Published in SPIE Proceedings Vol. 10009:
Third European Seminar on Precision Optics Manufacturing
Rolf Rascher; Oliver Fähnle; Christine Wünsche; Christian Schopf, Editor(s)

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