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Apparatus and method for detection and demodulation of an intensity-modulated radiation field

Thomas Spirig, +1 more
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TLDR
In this paper, the authors proposed an imaging sensor that simultaneously detects and demodulates intensity-modulated radiation as a function of position, thus ensuring that the object is accurately recorded for rangefinding purposes.
Abstract
An imaging sensor (13) has a multiplicity of sensor elements (16). Each sensor element (16) has a light-sensitive zone (17) in which radiation is detected as a function of position. A multiplicity of storage cells (21) successively store charges detected in the light-sensitive zone (17) of each sensor element (16) in synchronism with a modulation signal which is produced by the radiation source. The imaging sensor (13) simultaneously detects and demodulates intensity-modulated radiation as a function of position. The invention makes it possible to determine a range of parameters for the object (11) being examined, thus ensuring that the object is accurately recorded for rangefinding purposes.

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References
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Journal ArticleDOI

Charge-coupled device image sensor as a demodulator in a 2-D polarimeter with a piezoelastic modulator

TL;DR: It is shown how demodulation of rapidly modulated light beams can be achieved within a single charge-coupled device (CCD) using piezoelastic modulation of the state of polarization.
Patent

Two-dimensional CCD image sensor, image acquisition method for a moving scene and control device and method for the image sensor

TL;DR: In this paper, a two-dimensional CCD image sensor has photosensor (photodetector) elements 1 arranged in a matrix (array) with associated row storage cells 2, 3 and column storage cells 4, 5.