OPERATION
Axio Observer
Illumination and contrast techniques
ZEISS
12/2016
431004-7244-001
145
Key to
1
Standby button
2
Left sideport
3
Coarse / fine focus drive (left side) with finger wheel for fine focus, flat
4
Vertical stop for focus drive
5
Light path selector wheel (left / right sideport / vis)
6
Light path selector wheel (baseport / vis / frontport)
7
Microscope stage with inserted universal mounting frame K
8
Condenser centering screws
9
Polarizer D with 2-position filter changer or 3-position filter changer
10
Luminous-field diaphragm knurled wheel
11
LCD display
12
HAL 100 illuminator
13
Vertical adjustment knob for condenser
14
Carrier for transmitted-light illumination
15
Condenser (manual or motorized)
16
Slot F for iris diaphragm slider as reflected light luminous-field diaphragm (manual or motorized)
17
Slot A for iris diaphragm slider as reflected light aperture diaphragm (manual or motorized) or FL attenuator
(manual or motorized)
18
Slot for 3-position filter slider, d=25 mm
19
Colibri 7 illumination system
20
LM-Set button
21
Drive knobs for controlling XY positioning of the mechanical stage
22
Right sideport
23
6-position nosepiece H DIC M27 coded
24
Slot for 3-position contrast slider 10x29 mm for PlasDIC module and analyzer
25
Slot for DIC / PlasDIC slider
26
Reflector turret (coded or motorized)
27
Optovar turret selector wheel (max. 3 positions)
28
Coarse / fine focus drive (right side)
29
Control ring, right
30
TL button for switching the transmitted light LED / halogen illuminator on and off or for opening and closing the
transmitted light shutter
31
RL button for switching the reflected light shutter (fluorescence) on and off
32
Control wheel for LED light / halogen illuminator intensity control
33
Frontport
34
Binocular tube
35
Binocular section of the tube
36
Eyepiece
37
Eyepiece focusing ring
5.12.1.1
General operating principle
Transmitted light bright field microscopy is the simplest of all optical microscopy techniques, since it
allows high contrast and stained specimens (e.g. blood smears) to be viewed quickly and easily.
In addition to so-called direct beam bundles, indirect bundles which are diffracted and scattered by the
specimen details, are of major importance for obtaining as true an image as possible. The greater the
portion of indirect bundles (aperture), the truer, according to ABBE, the microscope image.
To make use of the microscope's full optical performance, and in particular that of the objective, the
condenser, luminous-field diaphragm and aperture diaphragm should be adjusted in line with the
requirements for KÖHLER illumination. This basic rule of microscopy is described in detail in
section 5.12.1.3.
Summary of Contents for Axio Observer Series
Page 1: ...Axio Observer Inverted microscope Operating manual...
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