Bresser Junior Biotar Instrucciones De Uso página 10

All Parts
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. Microscope "Biotar"
11. Prepared Slides
12. Cover Plates
13. Blank Slides
14. Replacement bulb
15. Shrimp farming accessories
16. Microscope instruments
17. Micro-slicer
18. Hatchery
10
Your Microscope
What is a Microscope?
The microscope is made of two lens
systems: the eyepiece and the objective. We're
presenting these systems as one lens each, so
that it's easier to understand. In reality, howev-
er, the eyepiece (1) and the objective in the tur-
ret (3) are made up of multiple lenses.
The lower lens (objective) magnifies the
prepared specimen (e.g. 11), which leads
to a magnified image of the specimen. The
picture, which you can't see, is magnified once
more by the second lens (eyepiece, 1). Then,
you can see the "microscope picture."
Assembly and Location
Before you start, choose an ideal location
for using your microscope. On the one hand,
it's important there is enough light (normal
observation). On the other
important that you can quickly make the
room dark when you want to (projector
observation). Furthermore, I recommend that
you place the microscope on a stable surface,
since you won't be able to get any satisfactory
results on a shaky surface.
Normal Observation
For normal observation, place the microscope
in a bright location (near a window or desk
lamp, for example). Remove the microscope
from the package and tilt the microscope
arm (9) so that it's in a comfortable viewing
position for you.
C
The focus knob (2) is turned to the upper stop
and the objective turret (3) is set to the lowest
magnification.
hand, it's
F
D
Now, take a look
through the eyepiece
and adjust the mirror
(5) so that you get a
uniformly bright circle
of light. Or, you can use
the lamp. You'll find
further tips about the
lamp in the next chap-
ter.