Driving solutions and optomechanical design of scanners with Risley prisms

Iosif Kaposta; Virgil-Florin Duma

doi:10.1117/12.2044053

14 January 2014 Driving solutions and optomechanical design of scanners with Risley prisms

Iosif Kaposta, Virgil-Florin Duma

Proceedings Volume 8925, Fifth International Conference on Lasers in Medicine: Biotechnologies Integrated in Daily Medicine; 89250Q (2014) https://doi.org/10.1117/12.2044053
Event: Fifth International Conference on Lasers in Medicine, 2013, Timisoara, Romania

Abstract

The issue of obtaining precise scan patterns using optical wedges (usually named Risley prisms) devices is related to the driving solutions of the prisms. In this paper we make first an overview of the existing and possible devices with Risley prisms – especially from the point of view of their components and of the relative movement between their components. Further on, we discuss several driving solutions for the accurate driving of Risley prisms with different dimensions and masses – thus for different applications, from satellite positioning to biomedical imaging. The different levels of accuracy required are taken into account. Another aspect that may suggest different driving solutions is the coupled and uncoupled movement of the two prisms. We thus make a preliminary study regarding specific solutions for prisms that have to move with a given relative speed, with a set of given relative speeds or with the possibility to adjust it within certain limits. Some of the parameters and of the envisaged errors of three types of driving solutions are pointed out.

Citation Download Citation

Iosif Kaposta and Virgil-Florin Duma "Driving solutions and optomechanical design of scanners with Risley prisms", Proc. SPIE 8925, Fifth International Conference on Lasers in Medicine: Biotechnologies Integrated in Daily Medicine, 89250Q (14 January 2014); https://doi.org/10.1117/12.2044053

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