61
III. Operation of Each Part
17
PA Block
When the microscopy under the episcopic illumination is
performed, even if the polarizer slider and the analyzer
slider are not used, crossed Nicols position can easily be
obtained by placing LV-PAB PA block into the optical
path.
* When the PA block is used, the simplified polarization
microscopy under the episcopic illumination or the
prism slide method of the DIC microscopy under the
episcopic illumination can be performed. The sensitive
color polarization microscopy or the Senarmont
method of the DIC microscopy cannot be performed.
Structure of the PA block
The PA block has the same shape with the filter cube for the epi-fl microscopy. The UV filter and
the polarizer are mounted on the entrance side, and the analyzer is mounted on the exit side. The
polarizer and the analyzer have been adjusted to the crossed Nicols position.
PA block installation
The PA block is installed in the FL1 position of the LV-UEPI2A filter cube turret. See Page 84 in
“IV. Assembly” for the installation method.
To use the PA block
To place the PA block into the optical path, press the CUBE switch on the operation panel and light
up the turret position indicator “FL1.” (See Page 37.)
LV - PA
B
Analyzer
Polarizer
and
UV filter
Half mirror
(inside)
