1. Light Microscope Parts and Functions

2. A. Eye piece Contains the ocular lens Magnification 10x

3. K. Arm Used to support the microscope when carried.

4. B. Revolving Nose Piece Holds the low and high-power objective lenses; can be rotated to change lenses so that a slide can be seen at different magnifications

5. C. Objective Lenses Magnification ranges from 4x to 40x

6. Scanning Objective Lens Magnification 4x Total Magnification = Eyepiece x Objective Lens Total Magnification for scanning objective lens =

7. Scanning Objective Lens Magnification 4x Total Magnification = Eyepiece x Objective Lens Total Magnification for scanning objective lens = 40x

8. Low Power Objective Lens Magnification 10x Total Magnification =

9. Low Power Objective Lens Magnification 10x Total Magnification = 100x

10. High Power Objective Lens Magnification 40x Total Magnification =

11. High Power Objective Lens Magnification 40x Total Magnification = 400x

12. E. Stage Supports the slide being viewed

13. D. Stage Clips Holds slide in place on stage

14. J. Coarse Adjustment Knob Moves the stage up and down for focusing an image

15. I. Fine Adjustment Knob Moves the stage slightly to increase the clarity of the image

16. H. Diaphragm Regulates the amount of light that enters the microscope

17. G. Base Supports the microscope

18. F. Light Source Projects light rays through the diaphragm, the slide to be seen, and the lenses

19. THE END

29. 2

33. How to use a microscope  Total Magnification: Eye piece x objective lens =  Use the SCANNING objective lens first!!!  NEVER use the coarse adjustment knob when you’re on HIGH power!!!!!!!!!!!!!!!!!!!!!