Optical Locating

Overview

Optical locating attempts to identify the location of information within a visual field. This could be seeking a color, or a shape, or just the centroid of light intensity. This page discusses the use of a duo-lateral photodiode to sense the centroid of light within its field of view. The documented method uses a passive retro-reflective target and optics.

System Design

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Sensor Design

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Optics

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Circuitry

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Code

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