Using The Elwd-S Condenser - Nikon ECLIPSE Ti2-U Instruction Manual

Chapter 3 Usage of Components
3.4.9

Using the ELWD-S Condenser

Switching the condenser module
The ELWD-S condenser allows BF microscopy and Ph
microscopy. Turn the turret manually to place the
module into the optical path.
 Operation:
Turret ring
Turn until it clicks into
position.
The condenser module in the optical path can be
checked through the position display on the front
surface of the turret.
Adjusting the aperture diaphragm
When adjusting the aperture diaphragm with the
ELWD-S condenser, operate the aperture diaphragm
open/close lever of the condenser.
 Operation:
Aperture diaphragm
open/close lever
Turn it to the right.
Turn it to the left.
Place the centering telescope into the optical path
and adjust the aperture diaphragm so that the size
of the aperture diaphragm image is 70％ to 80％
of the pupil plane of the objective.
Centering of the annular diaphragm
The ELWD-S condenser has a centering knob to
adjust the position of the annular diaphragm used for
Ph microscopy.
 Operation:
Annular diaphragm
centering screw
Turn it clockwise
(tighten).
Turn it counterclockwise
(loosen).
By centering the annular diaphragm of the lowest
Ph code, all annular diaphragms can be centered.
Adjusting the position of the annular diaphragm for Ph microscopy
For this adjustment, use the centering telescope. Place the objective having the lowest Ph code in the
optical path, and then, with the ELWD-S condenser, place the annular diaphragm having the same Ph
code into the optical path. Loosen the centering knob clamp screw and adjust the centering knob to
overlap the image of the phase ring of the objective with the image of the annular diaphragm.
Condenser
The previous or the next
module enters the optical
path.
Aperture diaphragm
The diameter of the
diaphragm increases.
The diameter of the
diaphragm decreases.
Position of the annular
diaphragm
It moves to the rear.
It moves to the front.
Aperture
diaphragm
open/close
lever
Position
display
Switching modules in the ELWD-S condenser
Aperture diaphragm
Adjust the field diaphragm so that the size of the field diaphragm
70％ to 80％ that of the pupil plane of the objective.
Adjusting the aperture diaphragm
Annular
diaphragm
50
Centering
knob
clamp screw
(both sides)
Annular
diaphragm
centering
screw
(both
sides)
Turret ring
Condenser lens
Objective pupil plane
70~80
100
image is
Phase ring