Microscope optical system

Claim 1

IN AN OPTICAL SYSTEM FOR MICROSCOPES, THE COMBINATION OF A TELESCOPE OBJECTIVE CHARACTERIZED BY DELIBERATELY INTRODUCED AXIAL COLOR AND AT LEAST ONE OTHER AXIAL ABERRATION SUCH AS COMA, SPHERICAL ABERRATION, AND THE AND A MICROSCOPE OBJECTIVE OPTICALLY ALIGNED WITH SAID TELESCOPE OBJECTIVE, SAID MICROSCOPE OBJECTIVE BEING INHERENTLY AFFLICTED BOTH WITH LATERAL COLOR AND WITH TANGENTIAL CURVATURE OF FIELD AND BEING CHARACTERIZED BOTH BY DELIBERATELY INTRODUCED AXIAL COLOR AND BY DELIBERATELY INTRODUCED AXIAL ABERRATION OF THE SAME KIND AS THE OTHER AXIAL ABERRATION DELIBERATELY INTRODUCED IN THE TELESCOPE OBJECTIVE, THE AXIAL ABERRATIONS DELIBERATELY INTRODUCED IN THE MICROSCOPE OBJECTIVE BEING OPPOSITE IN SIGN AND SUBSTANTIALLY EQUAL TO THE CORRESPONDING AXIAL ABERRATIONS DELIBERATELY INTRODUCED IN THE TELESCOPE OBJECTIVE, SAID TELESCOPE OBJECTIVES BEING SPACED FROM SAID MICROSCOPE OBJECTIVE BY AN AMOUNT SUFFICIENT TO PERMIT THE DELIBERATELY INTRODUCED AXIAL ABERRATIONS OF THE TELSCOPE OBJECTIVE TO SUBSTANTIALLY CANCEL, FOR THE TELESCOPE OBJECTIVE MICROSCOPE OBJECTIVE COMBINATION, THE INHERENT LATERAL COLOR AND TANGENTIAL CURVATURE OF FIELD CONTRIBUTIONS OF THE MICROSCOPE OBJECTIVE WHILE ALSO LEAVING THE SAID COMBINATION WELL CORRECTED BOTH FOR AXIAL COLOR AND THE STATED OTHER AXIAL ABERRATION.