Miniaturized optical sensors based on lens arrays

REFERENCES AND LINKS [1] H. T. Yura and S. G. Hanson, “Optical Beam Wave Propagation through Complex Optical Systems.” J. Opt. Soc. Am. A. 4, 10, 1931-1948 (1987). [2] H. Kogelnik and T. Li, "Laser beams and resonators," Appl. Opt. 5, 1550-1567 (1966). [3] H. T. Yura, B. Rose and S. G. Hanson, “Dynamic laser speckle in complex ABCD-optical systems.” J. Opt. Soc. Am. A. 15, 1160-1166 (1998). [4] B. Rose, H. Imam, S. G. Hanson, H. T. Yura and R. S. Hansen, “Laser-speckle angular-displacement sensor: theoretical and experimental study,” Appl. Opt. 37, 2119-2129 (1998). [5] B. Rose, H. Imam and S. G. Hanson, “Non-contact laser speckle sensor for measuring oneand two dimensional angular displacement” J. Opt. 29, 115–120 (1998). [6] B. Rose, H. Imam, S. G. Hanson and H. T. Yura, “A laser speckle sensor to the distribution of static torsion angles of twisted targets”, Meas. Sci. Technol. 9, 42–49 (1998). [7] Y. Aizu and T. Asakura, “Principle and development of spatial filter velocimetry,” Appl. Phys. B 43, 209– 224 (1987). [8] M. L. Jakobsen and S. G. Hanson, “Lenticular array for spatial filtering velocimetry of laser speckles from solid surfaces”, Appl. Opt. 43, 4643-4651 (2004) [9] M. L. Jakobsen and S. G. Hanson, “Micro-lenticular array for spatial-filtering velocimetry on solid surfaces”, Meas. Sci. Technol. 15, 1949-1957 (2004). [10] M. L. Jakobsen, H. E. Larsen and S. G. Hanson, “Optical spatial filtering velocimetry sensor for sub-micron in-plane vibration measurements,” to appear in Journal of Optics A (2005) ABSTRACT: A suite of optical sensors based on the use of lenticular arrays for probing mechanical deflections will be displayed. The optical systems are well suited for miniaturization, and utilize speckles as the information-carriers. This implementation allows for acquiring directional information of the displacement. Systems for probing lateral displacements and in-plane vibrations (1-D and 2-D) are displayed, as will systems for probing angular velocity and torsional vibrations of rotating objects.