Two-axis optical adjustment flexure mechanism

Alan D. Bell; Shaun R. Cronin

doi:10.1117/12.405209

24 October 2000 Two-axis optical adjustment flexure mechanism

Alan D. Bell, Shaun R. Cronin

Proceedings Volume 4093, Current Developments in Lens Design and Optical Systems Engineering; (2000) https://doi.org/10.1117/12.405209
Event: International Symposium on Optical Science and Technology, 2000, San Diego, CA, United States

Abstract

This technical paper describes an adjustment mechanism capable of producing microradian resolution rotational motion of an optical element. The mechanism rotates an optical element about two orthogonal axes utilizing flexure beam elements. The flexures facilitate frictionless rotation about the center of the optical element, in roll and tilt over a 1.5 degree range. The optical element is retained in an athermal mount to minimize distortion. The mechanism is constructed entirely of titanium. Integral to the mechanism is adjustment actuators to provide position adjustment of the optical element. Locking actuators retain the mechanism's final adjusted positions when exposed to severe vibration and thermal environments. The mechanism configuration may be scaled in size appropriate to the optical component requiring mounting. Although the flexure mechanism is patent pending, this paper presents an overview of the engineering principles utilized in precision mechanisms that the reader may be able to utilize in his or her design project.

Citation Download Citation

Alan D. Bell and Shaun R. Cronin "Two-axis optical adjustment flexure mechanism", Proc. SPIE 4093, Current Developments in Lens Design and Optical Systems Engineering, (24 October 2000); https://doi.org/10.1117/12.405209

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