×

Image sensing system including a light source

  • US 5,883,987 A
  • Filed: 06/06/1995
  • Issued: 03/16/1999
  • Est. Priority Date: 06/08/1994
  • Status: Expired due to Term
First Claim
Patent Images

1. An image reading apparatus comprising:

  • image projecting means for performing alternating current lighting to project light including image information of an original;

    a power source which supplies an alternating current to the image projecting means;

    an image reading member having photoelectric conversion devices arranged in a line, said image reading member reading out the image information;

    a scanner which moves the original and the photoelectric conversion devices relatively to each other in a direction perpendicular to the line in which the photoelectric conversion devices are arranged; and

    a control circuit which controls a start timing of reading of each line by the image reading member, said control circuit controlling the power source so that a phase position of the alternating current is substantially the same for the start timing of reading of each line so that an output level of said image reading member its-substaritially the same for each line.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×