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In this contribution, we present several smart image sensor arrays intended for various applications. We discuss the realization of image sensors in CMOS technology and show some examples of one-dimensional (1-D) and two-dimensional (2-D) smart image arrays

This work describes the architecture and realization of microelectronic components for a retina implant system that will provide visual sensations to patients with photoreceptor degeneration by applying electrostimulation of the intact retinal ganglion cell layer. Special circuitry has been developed for a fast single-chip CMOS image sensor system which provides high dynamic range of more than seven decades (without mechanical shutter) corresponding to the performance of the human eye. This image sensor system is directly attachable to a digital filter and a signal processor that compute the so-called receptive-field function for generation of the stimulation data. These external components are wireless linked to an implanted flexible silicon multielectrode stimulator which generates electrical signals for electrostimulation of the intact ganglion cells. All components, including additional hardware for digital signal processing and wireless data and power transmission have been developed for fabrication using our in-house standard CMOStechnology.

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This work describes the architecture and planned realization of components for a retina implant which includes a sensory device for image acquisition, biologically inspired neural nets for modeling and computation of receptive field functions, and a human interface for electrostimulation of ganglion cells. The system will be used to generate visual sensations based on captured visual images for patients with degenerated retina functions. Special CMOS circuitry will be developed for an integrated photodetector array with prepocessing according to the requirements for bio-inspired spatio-temporal signal processing. Also, the development will include a flexible silicon multielectrode structure with microelectronic action potential generation for stimulation of intact retinal ganglion cells and a wireless communication interface linking the external retina encorder hardware and the implanted stimulator hardware