Wide Dynamic Range Silicon Retina with Photodiode Capacitance Modulation

A new active pixel structure with a pinned photodiode for wide dynamic range image sensors

A wide dynamic range CMOS image sensor based on a new active pixel structure with a pinned photodiode is proposed and evaluated with device simulations. The proposed pixel device has a linear and a logarithmic characteristics in low and high illumination region, respectively. The technique of direct detection of photodiode potential leads to a wide logarithmic response compared with the convent...

Integrated Capacitance Bridge An integrated capacitance bridge for high-resolution, wide temperature range quantum capacitance measurements

An integrated capacitance bridge for high-resolution, wide temperature range quantum capacitance measurements Arash Hazeghi, 2 Joseph A. Sulpizio, 3 Georgi Diankov, David Goldhaber-Gordon, a) and H.S. Philip Wong These authors contributed equally to this work Department of Electrical Engineering, Stanford University Department of Physics, Stanford University Department of Chemistry, Stanford Un...

Analog Integrated Circuit for Edge Detection with wide Dynamic Range Based on Vertebrate Outer Retina

An analog circuit for edge detection was proposed based on vertebrate outer retinas. The chip which contained 40× 40 unit circuits in a two-dimensional array was fabricated with 0.35 μm CMOS process. Edge images were experimentally observed in a brightness range over 3 orders of magnitude. It was clarified by simulation with the simulation program with integrated circuit emphasis (SPICE) that a...

Wide Dynamic Range

Wide-dynamic-range sensors

Orly Yadid-Pecht, MEMBER SPIE Ben-Gurion University of the Negev Electrical and Computer Engineering Department P.O. Box 653 Beer-Sheva 84105 Israel E-mail: [email protected] Abstract. The work done to provide image sensors (CCDs and CMOS) with a wide dynamic range is reviewed. The different classes of solutions, which consist of logarithmic sensors, ‘‘clipped’’ sensors, multimode sensors, frequ...