1. the Microscope

2. Types of Microscopes
- Compound microscope

3. - Dissecting microscope

4. - Scanning electron microscope (SEM)

5. - Transmission electron microscope (TEM)

6. The compound microscope
A microscope : It is a tool that is used to study things
that can not be seen with the naked eye.
Microscope Parts

7. They are usually 10X , 15 X or 20X power.
1- Eye piece
(Ocular lens)
Contains the magnifying lens you look through, and may be provide with pointer to point on indicated parts from the body we need to exam.
They are usually 10X , 15 X or 20X power. 

8. 2- body tube
body tube
Its hold the eye piece

9. Supports the body tube and it hold the microscope.
3- Arm
Supports the body tube and it hold the microscope.
arm

10. Holds high & low power objectives;
4- Revolving nosepiece
Holds high & low power objectives;
and can be rotated to
change magnification.
revolving nosepiece

11. 5- Objective lenses

12. We can divided it to:
A: Low power objective (L.P) provide the least magnification usually it power is (4.0 X) and 
(10X). powers.
B: High power objective (H.P) provide the most magnification usually it power is (40 X).
objective lens

13. C: Immersion oil magnification usually (100 X),it is used only with oil drop.

14. moves the body up & down for focus it is used with (L.P)objective
6- coarse adjustment
moves the body up & down for focus it is used with (L.P)objective
coarse adjustment knob

15. Used to sharpen the image, moves the body tube slightly,
7- fine adjustment
Used to sharpen the image, moves the body tube slightly,
It is used with (H.P) objective.
fine adjustment knob

16. 8- Condenser
Its condense the light.

17. Supports the microscope slide.
9- Stage
Supports the microscope slide.
stage

18. Stage clips hold the microscope slide in place.

19. Regulates the amount of light which enter the body.
11-Diaphragm
Regulates the amount of light which enter the body.
diaphragm

20. 12-Mirror
Reflects the light upward through the diaphragm to the objective & the eye piece.

21. Supports the microscope.
13- Base
Supports the microscope.
base

22. HOW TO KEPP YOUR MICROSCOPE
Always carry the microscope with both hands, holds the arm with one hand & place the other hand under the stage.
Place the microscope on the table gently with the arm towards you and the stage facing alight source.
Never touch the lenses with your fingers.
Only use special lens paper to clean lenses.
Before putting the microscope away, always turn the low power objective in to place over the stage.be sure that the distance between the low power and the stage is about 2-3 centimeters.

23. Total Magnification:
To figure the total magnification of an image that you are viewing through the microscope is really quite simple. To get the total magnification take the power of the objective (4X, 10X, 40x) and multiply by the power of the eyepiece, usually 10X.

24. Total Magnification: