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  2. Pandigital, Inc. - Wikipedia

    en.wikipedia.org/wiki/Pandigital,_Inc.

    Pandigital, Inc., was a digital photo-frame manufacturer founded in 1998 that around 2010 began to expand its product line to include e-reader, tablets and e-books. Its tablet products included the Planet, Novel, Star, Nova, and SuperNova, and an offline Wikipedia reader called WikiReader .

  3. Photosensitive epilepsy - Wikipedia

    en.wikipedia.org/wiki/Photosensitive_epilepsy

    Specialty. Neurology. Frequency. 1 in 4000 [1] Photosensitive epilepsy ( PSE) is a form of epilepsy in which seizures are triggered by visual stimuli that form patterns in time or space, such as flashing lights; bold, regular patterns; or regular moving patterns. PSE affects approximately one in 4,000 people (5% of those with epilepsy).

  4. Backscatter (photography) - Wikipedia

    en.wikipedia.org/wiki/Backscatter_(photography)

    Backscatter (photography) The backscatter of the camera's flash by motes of dust causes unfocused orb-shaped photographic artifacts. In photography, backscatter (also called near-camera reflection [1]) is an optical phenomenon resulting in typically circular artifacts on an image, due to the camera's flash being reflected from unfocused motes ...

  5. Pandigital crams Zink technology within Portable Photo Printer

    www.aol.com/news/2009-12-08-pandigital-crams...

    It has been a hot minute since we've seen anything fresh from Pandigital, but evidently the outfit has been spending the past few months with none other than Zink. The two are linking hands today ...

  6. Variations in traffic light operation - Wikipedia

    en.wikipedia.org/wiki/Variations_in_traffic...

    This light begins blinking with enough time for the driver to see it and slow down before the intersection light turns yellow, then red. The flashing yellow light can go out immediately when the light turns green, or it may continue for several seconds after the intersection light has turned green, as it usually takes a line of cars some time ...

  7. Image scanner - Wikipedia

    en.wikipedia.org/wiki/Image_scanner

    An image scanner —often abbreviated to just scanner —is a device that optically scans images, printed text, handwriting or an object and converts it to a digital image. Commonly used in offices are variations of the desktop flatbed scanner where the document is placed on a glass window for scanning.

  8. Traffic light - Wikipedia

    en.wikipedia.org/wiki/Traffic_light

    In the US, a single-aspect flashing amber signal can be used to raise attention to a warning sign and a single-aspect flashing red signal can be used to raise attention to a "stop", "do not enter", or "wrong way" sign. [29] Flashing red or amber lights, known as intersection control beacons, are used to reinforce stop signs at intersections. [30]

  9. Digital imaging - Wikipedia

    en.wikipedia.org/wiki/Digital_imaging

    Digital imaging. Digital imaging or digital image acquisition is the creation of a digital representation of the visual characteristics of an object, [1] such as a physical scene or the interior structure of an object. The term is often assumed to imply or include the processing, compression, storage, printing and display of such images.