TABLE OF CONTENTS The six plots on the left side of the raytrace figures show the ray intercepts plotted against the relative height of the ray at the entrance pupil. For example, in Fig. 1.1 the left-most plots are for a fan of rays in the Y-Z (tangential or meridional) plane, and the adjacent half-plot is for a fan in the X-Z (sagittal) plane. (The left half of the sagittal plot is omitted because the sagittal plot is point symmetric about the origin.) Three field angles are shown, on axis, 0.7 , and 1.0 (in this example). The ray intercept plots are plotted for three colors: The cross (+) is for the middle wavelength (588 nm in this case), the triangle is for the short wavelength (486 nm), and the square is for the long wavelength (656 nm). The vertical scale is shown as 0.02 mm. (Note that the scale for each figure is adjusted to accommodate the amount of aberration of the lens.)
In the upper right row of figures, the left-most shows the field curvature of the para-principal rays. The crosses (+) are for the sagittal rays and the x's are for the tangential rays. The horizontal scale here is shown as 0.10 mm. The central plot is the longitudinal spherical aberration in three colors. Note that this plot represents exactly the same data as the on-axis ray intercept plot in the lower left corner of the figure. The scale is 0.10 mm. The right-most of these three...
