- the
construction of the
eyepiece. Long focal-length
eyepieces usually have
ample eye relief, but
short focal-length
eyepieces are more problematic. Until...
-
collimate reflecting or
refracting telescopes. Some
modern models of
Cheshire eyepieces in
common use
include extended sight tubes and are
equipped with crosshairs...
- An
ocular micrometer or
eyepiece micrometer is a gl**** disk,
engraved with a
ruled scale, that fits in an
eyepiece of a microscope,
which is used to measure...
- Over time, the
construction of
frames for gl****es also evolved.
Early eyepieces were
designed to be
either held in
place by hand or by
exerting pressure...
- them or may all be
achromatic doublets.
These eyepieces tend not to
perform as well as
Kellner eyepieces at high
power because they
suffer from astigmatism...
- may be
directly viewed through one or two
eyepieces on the microscope. In high-power microscopes, both
eyepieces typically show the same image, but with...
-
length eyepiece with an even
greater 110°
apparent field-of-view. In 2011, a new line of
eyepieces was
introduced called the Delos.
These eyepieces are based...
- the
eyepiece,
typically measured in degrees. It is a
fixed property of the
eyepiece's optical design, with
common commercially available eyepieces offering...
-
microscope equipped with
double eyepieces and a binoviewer. In such microscopes, both eyes see the same image, with the two
eyepieces serving to
provide greater...
- L. The
individual eyepieces have
their focal lengths written on them as well. In the case of
binoculars however, the two
eyepieces are
usually permanently...
