12 September 2013 3D microscope system by using a liquid crystal lens and an LED ring illumination
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Abstract
The microscope system in combination with a digital image processing is developed for determining all-focused images and depth mapping properties of microscopic objects by using a liquid crystal (LC) lens with a variable focal length. The objects can be selectively illuminated by using a light emitting diode (LED) ring illumination with controllable switching each LED. Three-dimensional distributions of the microscopic objects are determined by applying voltages to the electrodes of the LC lens and tuning a focal plane in a depth direction.
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Marenori Kawamura, Shunsuke Ishikuro, "3D microscope system by using a liquid crystal lens and an LED ring illumination", Proc. SPIE 8828, Liquid Crystals XVII, 88280Q (12 September 2013); doi: 10.1117/12.2023782; https://doi.org/10.1117/12.2023782
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