-5-
Eyepiece Lens:
The lens at the top that you look through. The
magnification is 8x - 12x power.
Focusing Knob:
You use it to move the objective lenses toward or away
from the specimen.
Body Tube:
Connects the eyepiece to the objective lenses.
Revolving Turret:
Holds the three objective lenses and rotated to
change the power.
Objective Lenses:
There are three objective lenses 8x, 25x, and 42x
powers. When coupled with a 12x or 18x eyepiece lens, we get a total of
the magnifications as listed:
96x (8 x 12) 144x (8 x 18)
300x (25 x 12) 450x (25 x 18)
504x (42 x 12) 756x (42 x 18)
Arm:
Supports the tube and
connects it to the base
Clips:
The two stage clips hold
the slides in place. The clips
move up and the slide is place
underneath
Stage:
The flat platform is
where you place the slides.
Diaphragm or Iris:
The
diaphragm is a rotating disc
mounted below the stage. It has
four different sized holes and
four colored holes. It is used to
vary the intensity and size of the
light that is projected upward
into the slide. The setting is a
function of the transparency of the specimen, the degree of contrast you
desire and the particular objective lens in use.
Mirror:
Used to reflect light from an external light source up through the
bottom of the stage.
Illuminator Lamp:
An LED (3V) light source used in place of a mirror.
Base:
The bottom of the microscope, used for support.
Lens Cover:
Protects the eyepiece lens from dust and debris.
PARTS OF THE MICROSCOPE
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
8
7
6
9
10
11
12
13
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