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214     Cha pte r  Ni ne


            5 mm
                                            0.5 mm














                      (a)                                (b)
          FIGURE 9-9  (a) UCSD Emblem on a business card placed at 14 cm away from the
          imaging system. (b) The same object placed at 1 cm from the device. (F. S. Tsai, S.
          H. Cho, Y.-H. Lo, B. Vasko, and J. Vasko, “Miniaturzied universal imaging device
          using fl uidic lens,” Optics Letters, vol. 33, pp. 291–293, 2008.)



















                                            3 um bar



                                            2.5 um bar








                                 Edmund optics 1951 USAF target
               FIGURE 9-10  With fl uidic lens, the device can resolve 2.5 μm features, showing
               that the unifi ed imager can function as a camera and a microscope. (F. S. Tsai,
               S. H. Cho, Y.-H. Lo, B. Vasko, and J. Vasko, “Miniaturzied universal imaging
               device using fl uidic lens,” Optics Letters, vol. 33, pp. 291–293, 2008.)
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