Image scanning instrument with light source used for starting of cold cathode fluorescent tube

Image scanning instrument with light source used for starting of cold cathode fluorescent tube

  • CN 1,921,540 A
  • Filed: 08/25/2005
  • Published: 02/28/2007
  • Est. Priority Date: 08/25/2005
  • Status: Active Application
First Claim
Patent Images

1. image reading apparatus with light source of used for starting of cold cathode fluorescent tube, in order to produce the picture signal of a scanned document, this image reading apparatus comprises:

  • One cold cathode fluorescent lamp is in order to produce the light of this scanned document of irradiation;

    It is characterized in that this image reading apparatus also comprises;

    One light source is arranged at an end that is close to this cathode fluorescent tube;

    AndOne control circuit is connected in this cathode fluorescent tube and this light source, and this control circuit is opened this light source earlier when this scanner start, and opens this cathode fluorescent tube again to scan after this light source is closed.

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