Contact Image Sensor

What Does Contact Image Sensor Mean?

A contact image sensor (CIS) is a particular kind of LED
sensor used in scanner technologies. The contact image sensor is an array of
sensors with red, green and blue LED lights supporting image capture. Contact image sensors have been popularized as a compact and low-power source of imaging


Techopedia Explains Contact Image Sensor

In general, contact image sensors are smaller than other
kinds of traditional sensors such as charge-coupled device (CDD) sensors, and,
because of the LED support, are much more efficient. Although image quality may
be limited, CIS is helpful in constructing scanners that are made to use less
energy, and are made to be more portable. Where the Canon company describes
this technology, it rates contact image sensors as more than ten times more
power efficient than CCD-based imaging systems. Companies like Canon use an
approach called LIDE or LED indirect exposure to build CIS sensors and innovate
in optical technology.


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Margaret Rouse

Margaret Rouse is an award-winning technical writer and teacher known for her ability to explain complex technical subjects to a non-technical, business audience. Over the past twenty years her explanations have appeared on TechTarget websites and she's been cited as an authority in articles by the New York Times, Time Magazine, USA Today, ZDNet, PC Magazine and Discovery Magazine.Margaret's idea of a fun day is helping IT and business professionals learn to speak each other’s highly specialized languages. If you have a suggestion for a new definition or how to improve a technical explanation, please email Margaret or contact her…