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Calculation of the magnification on the monitor
For all TV exits the magnification on the monitor
can be calculated with the following formula:
M
TV
= objective magnification x tube factor x
TV
monitor diameter
x ––––––––––––––––––––
adapter magnification
chip diameter of camera
Beamsplitting for photomicrography
or TV microscopy
DM IRB with side photo port only and corre-
spondingly with one beamsplitter switch rod
(81.1).
– Image recording via phototube:
Switch rod pushed in = 100 % light to the tube
(82.1).
– Image recording via side photo port:
Switch rod pulled out = 80 % light to the side
port and 20 % light to the tube (82.2).
DM IRB with side photo port and front port
(
DM IRB-SLR) and correspondingly two beam-
splitter switch rods (81.1 and 81.2).
– Image recording via phototube or side port:
Use the upper switch rod (81.1) as for the
version with
side photo port only.
Push the lower switch rod (81.2) in (82.3 and
82.4).
– Image recording via front port* (SLR/TV) or
phototube:
Upper switch rod (81.1) pushed in, lower
switch rod (81.2) pulled out = 50 % light to the
front port and 50 % to the tube (82.5).
Fig.␣ 78␣ ␣ Adaption of the front port for the SLR camera
1 SLR adapter, 2 T2 connector ring, 3 SLR camera
Fig.␣ 79␣ ␣ Adaption of the front port for TV camera
1 TV adapter 0.63x, 2 TV camera with c-mount thread
2
1
1
2
3