1.2. Assembly and Operation SMT 4
The SMT 4 have an objective that continually
corrects the picture distance and has both path
of rays in common. The object being viewed is
located in the front focal plane.
While the axes of both of the partial bundles
encompass an angle of 12.5° in front of the
objective, they run parallel behind the objec-
tive. This enables the installation of an 5 step
enlargement changer in form of a controller
with two telescope systems from type Galilei
(factor 1,6x and factor 3,2x). This system is in-
terspersed forward and also backward (factor
0,63x and factor 0,32x) or also switched off
(factor 1,0x). There are five possible magnifi-
cations.
Two separate pictures are designed in the tube
system, which are arranged in every path of
rays behind the enlargement changer, and are
observed with two separate eyepieces. One
mirror system for the obtainment of vertical and
horizontal pictures and one for the deviation
of the path of rays at 45° lie between the tube
system and the eyepiece.
The objective is screwed onto the middle part
of the microscope. A binocular tube is at-
tached , in whose braces an eyepiece pair is
inserted. The eyepieces braces of the binocular
eyepiece can be swivelled in order to fit them
to the individual optic distance of the observer
and are equipped with dioptre rings for com-
pensating the individual accommodation and
ametropia. The corresponding eyepieces are
inserted in them.
The drive is located at the backside of the mi-
croscope body. The whole microscope can be
clamped with a screw at the column.
A clamp ring (additional part), which will be
assembled directly under the drive at the col-
umn is useful to avoid a unintended slipping of
the microscope. The unit is completed with a
3W-LED incident light illumination which will
be clamped at the lamp holder or at a special
articulated arm (additional part) and a large
stand with column (367mm) and built-in power
supply for 3W-LED illumination, adjustable or
the right transformer.
Stereo - Microscope SMT 4
Picture 1: Overview SMT 4
1
Eyecup with eyepiece
2
Eyepiece cone with dioptre rings
3 Tube
45°
4
Middle part of microscope
5
Luminance ring, rotatable
6
Objective
7
3W-LED Incident light illuminator
8 Stand
base
9 Column
holder
10 Drive
mechanism
11 Column
Various easily exchangeable adapters and
eyepieces enable an extension of the
enlargement range of from 1,6x … 250x.
Additionally, the working distance can be var-
ied between 26mm … 210mm via various
adapters.
6
