General Warnings; Parts Overview - National Geographic BRESSER 300X-1200X Mode D'emploi

General Warnings

• Choking hazard — This product contains small parts that could be swallowed by children. This
poses a choking hazard.
• Risk of electric shock — This device contains electronic components that operate via a power
source (power supply and/or batteries). Only use the device as described in the manual, otherwise
you run the risk of an electric shock.
• Risk of fi re/explosion — Do not expose the device to high temperatures. Use only the recommended
batteries. Do not short-circuit the device or batteries, or throw them into a fi re. Excessive heat or
improper handling could trigger a short-circuit, a fi re or an explosion.
• Risk of chemical burn — Make sure you insert the batteries correctly. Empty or damaged batteries
could cause burns if they come into contact with the skin. If necessary, wear adequate gloves for
protection.
• Do not disassemble the device. In the event of a defect, please contact your dealer. The dealer will
contact the Service Centre and can send the device in to be repaired, if necessary.
• Tools with sharp edges are often used when working with this device. Because there is a risk of injury
from such tools, store this device and all tools and accessories in a location that is out of the reach
of children.

Parts overview

1. Eyepiece
2. Focus knob
3. Objective turret
4. Stage
5. Mirror
6. Electronic light source
7. Base with battery compartment
8. Rubber base
9. Microscope arm
10. Prepared slides
11. Cover plates
12. Reservoir
13. Replacement bulb
14. Microscope instruments
1. What is a microscope?
A microscope contains two lens systems: the eyepiece and the objective. We're presenting these
systems as one lens each so that the concept is easier to understand. In reality, however, the eye-
piece (1) and the objective in the turret (3) are made up of multiple lenses.
The lower lens (objective) produces a magnified image of the prepared specimen (10). The picture,
which you can't see, is magnified once more by the second lens (eyepiece, 1), which you can see as
the 'microscope picture'.
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