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. Author manuscript; available in PMC: 2020 Mar 1.
Published in final edited form as: Curr Opin Rheumatol. 2019 Mar;31(2):134–143. doi: 10.1097/BOR.0000000000000582

Figure 2: Schematic set-up of lens-free polarized microscopy.

Figure 2:

(a) Schematic setup of lens-free differential holographic polarized microscopy. (b) Design of the polarization in this system. The light, which is propagating from top to bottom, passes through a left-hand circular polarizer, the birefringent sample, a λ/4 retarder film, a linear polarizer and reaches the image sensor. The orientations of the polarizing components are illustrated with red arrows, and the polarization states of the light between components are illustrated with green arrows.