When was the first scanner invented

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Who invented Scanner in where and …. Who invented Scanner in where and in which year. The first image scanner developed for use with a computer was a drum scanner. The first image ever scanned on this machine was a 5 cm square photograph of Kirsch's then-three-month-old son, Walden. 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.

Hand-held scanners, where the device is moved by hand, have evolved from text scanning "wands" to 3D scanners used for industrial design, reverse engineering, test and measurement, orthotics, gaming and other applications. Mechanically driven scanners that move the document are typically used for large-format documents, where a flatbed design would be impractical. Modern scanners typically use a charge-coupled device CCD or a contact image sensor CIS as the image sensor, whereas drum scanners, developed earlier and still used for the highest possible image quality, use a photomultiplier tube PMT as the image sensor.

A rotary scanner, used for high-speed document scanning, is a type of drum scanner that uses a CCD array instead of a photomultiplier. Non-contact planetary scanners essentially photograph delicate books and documents.

While the first scanners could resolve 8 bits 2 8 , then 10 bits 2 10 , then 12 bits 2 12 for gray scales, today's scanners can differentiate up to 16 bits 2 16 , or 65, gray scales. However, the human eye is not capable of perceiving all of them. SilverFast 6. QuickTime Movies. SilverFast Blog. Version Feed. All rights reserved. The scanner was developed about 50 years ago in Kiel, starting with the fax machine invented by Dr Rudolf Hell.