Bresser Junior 40x-1024x Mode D'emploi page 12

Here are the parts of your microscope (Fig.
1-6):
1 10x WF Eyepiece
2 16x WF Eyepiece
3 Barlow Lens
4 MicrOcular
5 Eyepiece supports
6 Microscope Head
7 Set Screw
8 Objective Nosepiece
9 Objective
10 Clips
11 Microscope Stage
12 LED Illumination (transmitted light)
13 Microscope Base
14 Selection Knob for Illumination
15 Power supply
16 Focus knob
17 Color Filter
18 LED Illumination (reflected light)
19 5 Slides, 10 Cover Sips and 5 Prepared
Specimens plastic box
20 Specimens:
a) Yeast
b) Shrimp Eggs
c) Sea Salt
d) "Gum Media" Glue
21 Transformer with Plug and Power Cable
22 Specimen Slicer
23 Shrimp Hatchery
24 Tweezers
12
25 Pipette
26 Carrying Case
27 Illumination filter
28 USB cable
How do I use my microscope?
Before you assemble your microscope, make
sure that the table, desk or whatever surface
that you want to place it on is stable, and does
not wobble.
Apart from that, you will need a power source
for your microscope's light (220V-330V).
How do I operate the electric LED
illumination?
For the illuminator, you need the transformer
with the plug and power cable (22). First, place
the small plug on the power cable into the pow-
er connection on the back of the microscope
(Fig. 1, 15). Then, insert the large plug into a
power outlet.
There are two lights on the microscope. They
do not use light bulbs, but rather light-emitting
diodes (LED). The first lamp shines onto the
specimen from below and the second from
above. (The thing that you want to observe with
the microscope is called the object or speci-
men, by the way.) You can use each lamp on
its own, or both of them together. There is a
selection knob for this (Fig. 1, 14). It has three
numbers: I, II and III.
If you select the ...
I, the light only comes from below (transmit-
ted light).
II, the light only comes from above (reflected
light).
III, both lamps shine light on the specimen.
For transparent objects (transmitted-light ob-
jects), number I is best. In order to observe firm,
non-transparent objects (direct-light objects),
select number II. For semi-transparent objects,
it is best to select number III.
It is not recommended to use number III for
transmitted-light objects on slides, since the
light may cause reflections on the surface of
the slide, which will disturb your observation.
When do I use the color filters?
The color filters (Fig. 1, 17) are located below
the microscope stage (Fig. 1, 11). They help
you when you are observing very bright or clear
specimens. Here, you can choose from vari-
ous colors. This helps you better recognize the
components of colorless or transparent objects
(e.g. grains of starch, protozoa).