1. Introduction to Microscopes

2. Eyepiece
Body Tube
Nosepiece
Arm
Low power objective
Medium power objective
Stage
High power objective
Stage clips
Course Adjustment
Diaphragm
Fine Adjustment
Light source
Base

3. Eyepiece
Contains the ocular lens which is the magnifying lens you look through. Typically has 10X magnification.

4. Connects the eyepiece to the objective lenses.
Body tube
Connects the eyepiece to the objective lenses.

5. Arm
Connects the lens system to the stage and the base. One hand should ALWAYS hold the arm (the other hand under base)

6. Stage
Supports the slide that contains the specimen. Has a hole in its center to allow the light to reach the specimen.

7. Revolving nose piece
Holds the objective lenses and can be rotated to switch between the different lenses.

8. Low power objective
Additional lens that increases magnification. 4X magnification.
What is the total magnification when using this objective?

9. Medium power objective
Additional lens that increases magnification. 10X magnification.
What is the total magnification when using this objective?

10. High power objective
Additional lens that increases magnification. 40X magnification.
What is the total magnification when using this objective?

11. Diaphragm
Located under the stage, this controls the amount of light that reaches the specimen from the light source.

12. Base
Supports the microscope. When carrying the microscope, one hand should always support the base. (while the other hand holds the arm)

13. Fine adjustment
Moves the stage slightly to fine tune the focusing of the specimen.

14. Coarse adjustment
Moves the stage up and down for initial focusing of the specimen. It is never to be used with the high power objective lens.

15. The part of the microscope you look through 10x
Microscope Parts
Function
Eyepiece
(Magnification = _______)
Body tube
Arm
Stage
Revolving nosepiece
Low-power objective
Medium-power objective
High-power objective
Diaphragm
Base
Fine adjustment
Coarse adjustment
The part of the microscope you look through
10x
Connects the eyepiece to the arm
Connects the body tube to the stage; the part of the microscope you hold
Where you put the slide
Holds the objectives; allows you to switch to different magnifications
Objective you should start with; allows you to scan the slide 4x
Medium power objective
10x
High power objective; DO NOT USE coarse adjustment
40x
Hole in the stage that allows light to pass through
Bottom of the microscope; second part that you hold; has the light
Allows for small focusing on the slide; little movements
Allows for larger focusing; larger movements; DO NOT USE WHEN ON HIGH POWER