1. Introduction to the Microscope  History  Types  Care  Parts  Focusing

2. Diggs? Hans and Zcharias Janssen? Who invented the microscope?

3. Antony van Leeuwenhook Who really used the microscope?

4. He figured out that living things are made of cells. Robert Hooke

5. Compound -More than one lens -Has own light -Light must see through the sample Types of Microscopes

6. Stereomicroscope/Dissecting -Do not need light to pass through object -Low magnification Types of Microscopes

7. Electron -Very powerful -Passes electrons through an object rather than light -Coat with gold or platinum to attract particles Types of Microscopes

8. Label the parts on your microscope picture. Eyepiece/ocular lens magnification = 10X

9. Label the parts on your microscope picture. Eyepiece/ocular lens magnification = 10X Arm-Support

10. Label the parts on your microscope picture. Eyepiece/ocular lens magnification = 10X Arm-Support Stage - support

11. Label the parts on your microscope picture. Eyepiece/ocular lens magnification = 10X Arm-support Stage - support

12. Label the parts on your microscope picture. Eyepiece/ocular lens magnification = 10X Arm-support Stage - support Coarse adjust – general focus Fine Focus – medium and high power focus

13. Label the parts on your microscope picture. Eyepiece/ocular lens magnification = 10X Arm-Support Stage - support Coarse adjust – general focus Fine Focus – medium and high power focus Base - support

14. Label the parts on your microscope picture. Eyepiece/ocular lens magnification = 10X Arm-Support Stage - support Coarse adjust – general focus Fine Focus – high power focus Base - support Light source

15. Label the parts on your microscope picture. Eyepiece/ocular lens magnification = 10X Arm-Support Stage - support Coarse adjust – general focus Fine Focus – high power focus Base - support Light source Diaphragm – adjusts amount of light

16. Label the parts on your microscope picture. Eyepiece/ocular lens magnification = 10X Arm-Support Stage - support Coarse adjust – general focus Fine Focus – high power focus Base - support Light source Diaphragm – adjusts amount of light Stage clips – holds slide

17. Label the parts on your microscope picture. Eyepiece/ocular lens magnification = 10X Arm-Support Stage - support Coarse adjust – general focus Fine Focus – medium and high power focus Base - support Light source Diaphragm – adjusts amount of light Stage clips – holds slide Objective Lenses

18. Eyepiece/ocular lens magnification = 10X Arm-Support Stage - support Coarse adjust – general focus Fine Focus – high power focus Base - support Light source Diaphragm – adjusts amount of light Stage clips – holds slide Objective Lenses Revolving nosepiece

20. Magnification of a Compound Microscope Because you are looking through multiple lenses the lenses have a “compounding” effect. The eyepiece always magnifies 10X EyepieceObjective LensMagnification Low Power 10X 4X 40X Medium Power 10X 100X High Power 10X 40X400X

22. The circular area viewed through the eyepiece. Magnification – The number of times the image of an object is increased insize by a lens system FIELD OF VIEW

23. The number of times the image of an object is increased in size by a lens system MAGNIFICATION

24.  Always carry with 2 hands – one on the base and the other on the arm  Do not force knobs  Click Nosepiece to the lowest (shortest) setting when done – otherwise known as the park position  Cover the microscope when done

25.  Place the Slide on the Microscope  Use Stage Clips  Click Nosepiece to the lowest (shortest) setting  Look into the Eyepiece  Use the Coarse Focus

26.  Follow steps to focus using low power  Click the nosepiece to the medium or longest objective  Bring the stage as close as possible to the objective lens using the Coarse Focusing Knob  Use the Fine Focus Knob to bring the slide into focus