10027/14242 JOHN LEONARD. SEMMLOW JOHN LEONARD. SEMMLOW NONLINEAR PUPIL MECHANISMS. University of Illinois at Chicago 2014 Engineering, Biomedical. 2014-03-18 00:00:00 Thesis https://indigo.uic.edu/articles/thesis/NONLINEAR_PUPIL_MECHANISMS_/10806512 NONLINEAR PUPIL MECHANISMS.