Olympus IX2-DSU BX-DSU - Manual (Page 37)

DETAILS OF EACH OPERATION
/ Lamp centering
II. DSU
II . 3 - 1 3 Page
3-13 Lamp centering
Lamp centering should be done after arc image of lamp is
stablized after main switch was turned ON (5 to 10
minitues later after lamp ON).
In case that frost filter 32FR80 is used, displace it from
light path.
1. Move shutter knob (1) to right ( mark side) to close the
shutter.
2. Turn front side turret and insert fluorescent mirror unit of B or
IB excitation for visual observation into light path.
(In case that these mirror units are not installed, use other
fluorescent mirror unit. However, in case of fluorescent
mirror unit of U excitation, it is essentially required to observe
through ultraviolet light cutting plate.)
3. Turn rear side turret and insert reference mirror of No.1 into
light path.
4. Move shutter knob (1) to left ( mark side) to open the
shutter.
5. Put objective lens 10x into light path. Put centering target U-
CST on the stage and align center of view with cross line of
U-CST.
6. Turn revolving nosepiece and bring a place where the
objective lens does not exist into light path (objective cap
should also be displaced).
7. Pull out field iris diaphragm lever (2) (to make the view
squeezed).
8. Turn collector lens focusing knob (3) to project arc image on
U-CST. (A)
In case that the image is not projected, turn lamp centering
knob (4).
9. Turn lamp centering knob (4) and move arc image to center of
right (or left) half view. (B)
10. Insert the Allen screwdriver into mirror focusing screw (5)
located at back panel of lamp house and turns it to bring
mirror arc image in focus. (C)
(In case of BX)
(In case of IX)
TIP
(1)
(1)
(2)
(3)
(4)
(5)