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MULTIPLE MAGNIFICATION OPTICAL SYSTEM WITH SINGLE OBJECTIVE LENS

  • US 20100202042A1
  • Filed: 02/05/2010
  • Published: 08/12/2010
  • Est. Priority Date: 02/11/2009
  • Status: Active Grant
First Claim
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1. A multiple magnification optical system for viewing a specimen, comprising:

  • a single objective lens;

    the objective lens having a focal length equal to F0;

    the objective lens having a principal plane;

    a gradient-index lens;

    the gradient-index lens positioned to receive light passing throughthe objective lens;

    a beam splitter;

    the beam splitter creating first and second optical axes;

    the beam splitter positioned to receive light passing through the gradient-index lens;

    a first camera aligned in the first optical axis;

    a first lens in the first optical axis;

    the first lens having a focal length equal to F1;

    the first lens situated a distance F1 from the first camera;

    a second camera aligned in the second optical axis;

    the second camera situated a distance from the principal plane of the objective lens equal to 2F0;

    so that a first magnification of the specimen at the first camera is obtained where the working distance of the objective lens from a specimen is equal to F0, and a second magnification of the specimen at the second camera is obtained where the working distance of the objective lens from the specimen is equal to 2F0.

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