1. Microscope
Identifying the parts and
understanding their purpose

2. Parts of a Microscope
Body tube

3. Body Tube
• The body tube holds the objective
lenses and the ocular lens at the proper
distance

4. Parts of a Microscope
Nose Piece

5. Nose Piece
• The Nose Piece holds the objective
lenses and can be turned to increase
the magnification

6. Parts of a Microscope
Objective
Lenses (2)

7. Objective Lenses
• The Objective Lenses increase
magnification (usually from 10x to 40x)

8. Parts of a Microscope
Stage
Clips (2)

9. Stage Clips
• These 2 clips hold the slide/specimen in
place on the stage.

10. Parts of a Microscope
Diaphragm

11. Diaphragm
• The Diaphragm controls the amount of
light on the slide/specimen
Turn to let more light in or to
make dimmer.

12. Parts of a Microscope
Light Source

13. Light Source
• Projects light upwards through the
diaphragm, the specimen and the
lenses
• Some have lights, others have mirrors
where you must move the mirror to
reflect light

14. Parts of a Microscope
Ocular Lens

15. Ocular Lens/Eyepiece
• Magnifies the specimen image

16. Parts of a Microscope
Arm

17. Arm
• Used to support the microscope when
carried. Holds the body tube, nose
piece and objective lenses

18. Parts of a Microscope
Stage

19. Stage
• Supports the slide/specimen

20. Parts of a Microscope
Course Adjustment

21. Coarse Adjustment Knob
• Moves the stage up and down (quickly)
for focusing your image

22. Parts of a Microscope
Fine Adjustment

23. Fine Adjustment Knob
• This knob moves the stage SLIGHTLY
to sharpen the image

24. Parts of a Microscope
Base

25. Base
• Supports the microscope

26. Parts of a Microscope
Ocular Lens
Body Tube
Nose Piece
Arm
Objective
Lens (2)
Stage
Stage
Clips (2) Course Adjustment
Diaphragm Fine Adjustment
Light Source
Base