Patent Number: 6,801,343

Title: Flat bed image scanner

Abstract: A flat bed image scanner uses a contact image sensor to scan a document. The distance between the contact image sensor and the glass window, over which the document is placed, is minimized and held constant by inserting a lubricating element between the contact image sensor and the glass window. The lubricating element may comprise two pads placed at the two ends of the contact image sensor. The lubricating element can also be integrated structurally with the contact image sensor. The material of the lubricating element can be nylon or some other kinds of plastic. The lubricating element may also comprise two guide rails placed at the two edges of the scan window.

Inventors: Sheng; Thomas (Hsin-Chu, TW)

Assignee: Avision Inc.

International Classification: H04N 1/10 (20060101); H04N 1/193 (20060101); H04N 1/191 (20060101); H04N 001/04 ()

Expiration Date: 10/05/2021