Page 14 - Fundamentals of Light Microscopy and Electronic Imaging

Color Plates

Color Plate 4-1. Optical path in the Olympus BX60 upright microscope. The microscope is fit-
ted with a transilluminator (bottom) and epi-illuminator (top) and has infinity-corrected optics.
Lenses, filters, and prisms are light blue. Light passing through the objective lens emerges and
propagates as a parallel beam of infinite focus, which is collected by an internal tube lens (Telan
lens) as an aberration-free image in the real intermediate image plane. The Telan lens is located
where the black trinocular headpiece joins the white microscope body. The infinity space between
objective and Telan lens allows insertion of multiple optical devices (fluorescence filter sets,
waveplate retarders, DIC prisms, analyzer, and others) without altering the magnification of the
image. This color plate was provided by Olympus America, Inc.