US 7,554,701 B2
Scanner
Min-Wen Hong, Rende Township, Tainan County (Taiwan); Tsung-Te Lin, Taipei (Taiwan); and Chun He, Su-chou (China)
Assigned to Qisda Corporation, Taoyuan County (Taiwan)
Filed on Jun. 24, 2004, as Appl. No. 10/876,220.
Claims priority of application No. 92 1 17092 (CN), filed on Jun. 24, 2003.
Prior Publication US 2004/0263917 A1, Dec. 30, 2004
Int. Cl. H04N 1/04 (2006.01)
U.S. Cl. 358—474  [358/497; 358/498; 358/496] 13 Claims
OG exemplary drawing
 
1. A scanner, comprising:
a window glass;
a contact image sensor (CIS) module located below said window glass;
a carriage for carrying said contact image sensor module, said carriage having a hole;
a guiding shaft located below said carriage for guiding movement of said carriage; and
a force-providing element for providing a force making said contact image sensor module to maintain a constant distance from said window glass while said contact image sensor module moves, the force-providing element comprising a portion sliding on said guiding shaft, the force-providing element further comprising an elastic part extended from the portion and passing through said hole and touching against said contact image sensor module.