1. Parts of the Microscope and Their Function
On the next slide there is an image of a microscope, very similar to the scopes we use in class.
Click on the boxes to see the name and function of each part of the microscope.

2. Rules of using a microscope
Always carry with 2 hands
Make sure microscope is ready for use
Do not force knobs
Be careful of the cords

3. Parts of a microscope
Contains the lens and magnifies the image for the viewer

4. Parts of a microscope Eyepiece Contains the 10X magnifying lens
Contains the lens and magnifies the image for the viewer

5. Parts of a microscope Coarse Adjustment Knob
Focuses the image under low power
Use this first
Used for focusing the microscope at different objectives

6. Parts of a microscope Fine Adjustment Knob
Focuses the image under high power
Use this last
Used for focusing the microscope at different objectives

7. Parts of a microscope Nosepiece Holds the objective lenses
Revolves to change magnification
Revolving circular structure containing the objectives

8. Parts of a microscope Objectives Low power (short)
Magnifies 4X
Medium power (medium)
Magnifies 10X
High power (long)
Magnifies 40X
Lens that receives light from object to form a magnified image that you view through the eyepiece

9. Parts of a microscope Stage
Supports and holds the microscope slide while viewing
Surface on which the slide is placed

10. Parts of a microscope Stage clips
Place on microscope slide to secure into place after you have focused on your specimen
Used to hold the slide on the stage

11. Parts of a microscope Diaphragm
Controls the amount of light available while viewing sample
Controls the amount of light that passes up through the bottom of the stage

12. Parts of a microscope Light source
Shines light up through the diaphragm and stage to light the object being viewed
Lighted area is called your “Field of View”
Provides a steady stream of light that passes up through the bottom of the stage

13. Parts of a microscope Arm
Supports the body tube which connects the eyepiece to the set of objective lenses
Part of the microscope that is used for carrying

14. Parts of a microscope Body tube
Tube extending from eyepiece to the objectives

15. Parts of a microscope Base Supports the microscope

16. Magnification
Multiply the eyepiece magnification (10X) by the objective magnification (4X, 10X, 40X)
Example: 4 x 10 = 40X total

17. How to use a microscope Place the slide on the stage
Use stage clips to secure slide
Adjust nosepiece to lowest setting
(Lowest = shortest objective)
Look into eyepiece
Use coarse adjustment knob