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Image reading apparatus

  • US 20040160650A1
  • Filed: 01/30/2003
  • Published: 08/19/2004
  • Est. Priority Date: 01/30/2003
  • Status: Active Grant
First Claim
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1. An image reading apparatus comprising:

  • an illumination unit including a lamp to incorporate a change in temperature conditions to the emitting light amount, the lamp extending in a predetermined direction and having a predetermined length, the lamp illuminating a reading object with a light of a predetermined intensity;

    an image signal generation unit which generates an image signal corresponding to a reflected light based on the reflected light generated when the reading object is illuminated; and

    a light intensity setting unit (a cooling unit) which can set a change in the intensity of the light radiated from the illumination unit within a predetermined range in the length direction of the illumination unit.

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