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- Contact_image_sensor abstract "Contact Image Sensors (CIS) are a relatively recent technological innovation in the field of optical flatbed scanners that are rapidly replacing CCDs in low power and portable applications. As the name implies, CISs place the image sensor in near direct contact with the object to be scanned in contrast to using mirrors to bounce light to a stationary sensor, as is the case in conventional CCD scanners. A CIS typically consists of a linear array of detectors, covered by a focusing lens and flanked by red, green, and blue LEDs for illumination. The use of LEDs allows the CIS to be highly power efficient, allowing scanners to be powered through the minimal line voltage supplied via a USB connection. CIS devices typically produce lower image quality compared to CCD devices; in particular, the depth of field is greatly limited, which poses a problem for material that is not perfectly flat. However, a CIS contact sensor is smaller and lighter than a CCD line sensor, and allows all the necessary optical elements to be included in a compact module, thus helping to simplify the inner structure of the scanner. With a CIS contact sensor, the scanner can be portable, with a height of only around 30 mm.CIS is both a key component of, and widely used in, scanners (especially portable scanners), electrographs, bar code readers and optical identification technology.".
- Contact_image_sensor thumbnail Flatbed_scanner_CIS_sensor_bar.jpg?width=300.
- Contact_image_sensor wikiPageID "1242563".
- Contact_image_sensor wikiPageRevisionID "562677873".
- Contact_image_sensor hasPhotoCollection Contact_image_sensor.
- Contact_image_sensor subject Category:Optical_devices.
- Contact_image_sensor type Artifact100021939.
- Contact_image_sensor type Device103183080.
- Contact_image_sensor type Instrumentality103575240.
- Contact_image_sensor type Object100002684.
- Contact_image_sensor type OpticalDevice103851341.
- Contact_image_sensor type OpticalDevices.
- Contact_image_sensor type PhysicalEntity100001930.
- Contact_image_sensor type Whole100003553.
- Contact_image_sensor comment "Contact Image Sensors (CIS) are a relatively recent technological innovation in the field of optical flatbed scanners that are rapidly replacing CCDs in low power and portable applications. As the name implies, CISs place the image sensor in near direct contact with the object to be scanned in contrast to using mirrors to bounce light to a stationary sensor, as is the case in conventional CCD scanners.".
- Contact_image_sensor label "Contact Image Sensor".
- Contact_image_sensor label "Contact image sensor".
- Contact_image_sensor sameAs Contact_Image_Sensor.
- Contact_image_sensor sameAs m.04lk2h.
- Contact_image_sensor sameAs Q1128436.
- Contact_image_sensor sameAs Q1128436.
- Contact_image_sensor sameAs Contact_image_sensor.
- Contact_image_sensor wasDerivedFrom Contact_image_sensor?oldid=562677873.
- Contact_image_sensor depiction Flatbed_scanner_CIS_sensor_bar.jpg.
- Contact_image_sensor isPrimaryTopicOf Contact_image_sensor.
