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Catadioptric imaging systems for digital scanner

  • US 10,488,638 B2
  • Filed: 07/05/2017
  • Issued: 11/26/2019
  • Est. Priority Date: 11/22/2013
  • Status: Active Grant
First Claim
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1. A projection optical system configured to form an image on an image plane, comprising:

  • a first optical system having a concave mirror, said first optical system configured to form an intermediate optical image;

    a second optical system configured as a dioptric optical system disposed to form an image of the intermediate image on the image plane;

    said first and second optical systems aggregately configured to satisfy a condition of

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