1. Standard: I.E. 1a CN-Microscope 08/27/13
Objective
Students will be able to identify the parts of a compound microscope.

2. What are the different types of microscopes?
1. Simple Microscope – one lens
Ex – Magnifying lens
2. Compound Microscope – 2 lenses that magnify each other.
3. Dissecting Microscope – no special slide preparation
What are the different types of microscopes?

3. Microscopes

4. Parts of The Compound Microscope

5. Used to look through and contains the Ocular lens.
Eyepiece:
Used to look through and contains the Ocular lens.
Magnifies the image by 10X

6. Used to rotate objective lenses to increase or decrease magnification
Nose piece:

7. Arm:
Used to support the microscope when carried

8. Objective lenses
(3types):
Used to Enlarge the
Image
Magnification ranges from
Low (4x)
Medium (10x)
High (40x)

9. TOTAL MAGNIFICATION
Power of the eyepiece (10X) multiplied by objective lenses determines total magnification.
To figure out how much total
magnification you can see, use multiplication.
Objective Lenses: 4X, 10X, & 40X
The “x” next to the number means
how many “times” it is magnified.
(For example: 40x reads as “forty
times” which means that the image you
are looking at is 40 times bigger then
in real life.)

10. Magnification Objective Ocular Eyepiece Total Magnification Low Power
4 x
10 x
40 x
Medium Power
100 x
High Power
400 x

12. Platform that supports a slide being view
Stage:
Stage Clip
Platform that supports a slide being view
Hold slide in place

13. Move stage up and down for FOCUSING the image
Moves the stage slightly to SHARPEN the image
Coarse adjustment knob:
Fine adjustment knob:

14. controls the amount of light passing through the slide
Diaphragm:

15. Light source
Base:
Provide light for viewing
Supports the microscope

16. Used to move the lenses closer to or farther from the slide
Body tube:
Used to move the lenses closer to or farther from the slide