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Hamamatsu Corp. - Earth Innovations LB 2/24

How an Imaging Sensor Feeds Off Light

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Dave Litwiller, Dalsa Corp.

Today, most machine vision systems still rely on some type of CCD imaging sensor, although CMOS devices also are gaining favor. The primary lighting-related differences between these types of sensors are linked to two basic issues: fill factor and the vertical distance the light must travel into the sensor before optical signal sensing takes place. Fill factor. This parameter defines the portion of each pixel that is optically sensitive. The challenge for CMOS sensors is that each pixel requires a number of transistors and that these transistors are optically insensitive. CCD...Read full article

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    Published: May 2004
    CCD imaging sensorCMOS devicesConsumerFeaturesindustrialmachine vision systemsoptical signal sensingSensors & Detectors

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