LEITZ DIALUX 20 - Technical Details; Tubes; Revolving Nosepiece; Mechanical Stage

2 Technical details
Tubes
•
- c;
- ~ 22639 -5 13 R
22654 -513 R
6
Fig_ 2
Binocular tube S
Binocular observation tube with ad-
justable eyepiece tubes for the mech-
anical compensation of the tube length
with interpupillary distance adjustment.
Tube factor 1x
Fig_ 3
Binocular phototube FSA
Binocular observation- and phototube
with automatic interpupillary distance
compensation.
- 100% of the light enters the eye-
pieces
L 50% of the light enters the eye-
pieces, 50 % the
phototube
10% of the light enters the eye-
pieces,
90 % the phototube
Tube factor 1 x
Fig. 4
Revolving nosepiece
The revolving nosepiece takes up to 5
objectives.
Tube lens factor 1 x and 1.25x respect-
ively.
22951 ·512 R
•
-
-
__ ,....... _ ..::::. _ ..:
"'-. : l
-----,--
22955-51 2 R
Fig. 5
Large
Mechanical Stage No. 78
The mechanical stage measures 200 x
100mm, and has coaxial controls for
object movement within an area of
50 x 76mm.
Fig. 6
Condenser
holder
This vertically adjustable
changer has centring screws
condenser and an adjustable
stop (arrow).
Fig. 7
dovetail
for the
vertical
Coarse and fine adjustment of the object stage
The coarse and fine adjustment, ar-
ranged on
both sides of the stand, ad-
justment range 35mm, actuates the ob-
ject stage. One interval on the fine-
adjustment corresponds to a vertical
difference of 2 ,u m.
7