1. The Microscope

2. Types of microscopes The compound light microscope
The Dissecting microscope
The electron microscope

3. The microscope used most commonly in cell study
For study with this microscope, the specimen must be thin enough for light to pass through it easily

4. Compound Light microscope
It has 2 lenses
Light passes through a specimen, then passes through the objective lens
The enlarged image is magnified AGAIN by the eyepiece lens

5. The dissecting microscope allows you to see large specimens in three-dimensional quality
The electron microscope produces magnification of more than 100,000 times

6. Parts and functions
The tube that connects the oculars(the eyepiece) to the revolving nose piece which holds objectives
Body tube

7. the lens on the top of the microscope that you look through
Eyepiece (ocular lens)

8. Low-power objective:
The shorter objective{yellow}
Contains lenses that magnify objects 10 times

9. the low power lens is more zoomed out and you can see a larger area so you see more of your image

11. High- power objective:
The longer objective{blue}
Contains lenses that usually magnify 40 times

12. When viewing under the high power objective {the blue one}, you can see better details of the image, but you cannot see as much of the image

14. Coarse adjustment the larger knob on the microscope
When you move this knob, it moves the stage up or down

15. Fine adjustment This is the small knob on the microscope
The fine adjustment sharpens the image {makes you see clearer} under low power

16. Stage: Stage clips: platform for holding the slides
holds the slide on the stage

17. used for carrying the microscope
Arm and Base

18. Nosepiece
This rotates the objectives

19. this controls the amount of light passing through a specimen
The diaphragm

20. The circle of light you see when you look through the microscope
Field of view

22. Microscope “RULES”
Never use the coarse adjustment under high power because you can break the slide

23. What is the formula for total magnification?
To determine the total magnification, you multiply the eyepiece by the objective lens
Total magnification refers to the total amount that the image is enlarged

26. Under the low power objective, the field of view gets larger
Under the high power objective, the field of view gets smaller

29. How does an image appear under the microscope?
The final image appears enlarged, upside down and backward