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Slit illumination system for copying machine and the like

  • US 4,518,249 A
  • Filed: 11/16/1983
  • Issued: 05/21/1985
  • Est. Priority Date: 11/30/1982
  • Status: Expired due to Fees
First Claim
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1. A slit illumination system for use in a copying machine or the like comprising;

  • a light source,first elliptical mirror directing the light from the light source to an original and positioned on one side of an optical path for an image corresponding to the original and between the light source and the optical path,a second elliptical mirror positioned on the same side of the optical path as the first mirror and farther than the first mirror with respect to the optical path and directing the light from the light source to the original through a third mirror positioned on the other side of the optical path, anda supplemental mirror positioned behind the light source and between the first and second mirrors for illuminating the original through a light path extending directly to the original and/or a light path extending to the original through the third mirror.

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