Miniaturized optical speckle-based sensor for cursor control

Steen G. Hanson; Michael L. Jakobsen; Henrik C. Petersen; Carsten Dam Hansen; Jørgen Stubager

doi:10.1117/12.695469

15 September 2006 Miniaturized optical speckle-based sensor for cursor control

Steen G. Hanson, Michael L. Jakobsen, Henrik C. Petersen, Carsten Dam Hansen, Jørgen Stubager

Proceedings Volume 6341, Speckle06: Speckles, From Grains to Flowers; 63411U (2006) https://doi.org/10.1117/12.695469
Event: Speckle06: Speckles, From Grains to Flowers, 2006, Nimes, France

Abstract

A miniaturized optical system based on spatial filtering for measuring speckle displacement will be discussed with special emphasis on shaping the speckle spectrum in order to enhance the signal. Applications for measuring linear object velocity - being it in one or two dimensions - and for probing angular velocities will be discussed. A miniaturized system has been developed for implementation in a single chip for measuring speckle displacement in two directions. The system is dedicated for cursor control and is in order to reduce cost based on the use of a single Vertical Cavity Surface Emitting Laser (VCSEL), a dedicated single-chip detector and signal processor and a molded polymer optical element performing the necessary optical processing.

Citation Download Citation

Steen G. Hanson, Michael L. Jakobsen, Henrik C. Petersen, Carsten Dam Hansen, and Jørgen Stubager "Miniaturized optical speckle-based sensor for cursor control", Proc. SPIE 6341, Speckle06: Speckles, From Grains to Flowers, 63411U (15 September 2006); https://doi.org/10.1117/12.695469

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