The Microscope
 
The History <ul><li>Hans and Zacharias Janssen of Holland in the 1590’s created the “first” compound microscope </li></ul>...
The History The “First” Microscope
 
 
 
How a Microscope Works Convex Lenses are curved glass used to make microscopes (and glasses etc.) Convex Lenses bend light...
How a Microscope Works Ocular Lens (Magnifies Image) Objective Lens (Gathers Light, Magnifies And Focuses Image  Inside Bo...
The Parts of a Microscope
Body Tube Nose Piece Objective Lenses Stage  Clips Diaphragm Light Source Ocular Lens Arm Stage Coarse  Adj Fine Adjustmen...
Body Tube <ul><li>The body tube holds the objective lenses and the ocular lens at the proper distance </li></ul>Diagram
Nose Piece <ul><li>The Nose Piece holds the objective lenses and can be turned to increase the magnification </li></ul>Dia...
Objective Lenses <ul><li>The Objective Lenses increase magnification (usually from 10x to 40x) </li></ul>Diagram
Stage Clips <ul><li>These 2 clips hold the slide/specimen in place on the stage. </li></ul>Diagram
Diaphragm <ul><li>The Diaphragm controls the amount of light on the slide/specimen </li></ul>Turn to let more light in or ...
Light Source <ul><li>Projects light upwards through the diaphragm, the specimen and the lenses </li></ul><ul><li>Some have...
Ocular Lens/Eyepiece <ul><li>Magnifies the specimen image </li></ul>Diagram
Arm <ul><li>Used to support the microscope when carried.  Holds the body tube, nose piece and objective lenses </li></ul>D...
Stage <ul><li>Supports the slide/specimen  </li></ul>Diagram
Coarse Adjustment Knob <ul><li>Moves the stage up and down (quickly) for focusing your image </li></ul>Diagram
Fine Adjustment Knob <ul><li>This knob moves the stage SLIGHTLY to sharpen the image </li></ul>Diagram
Base <ul><li>Supports the microscope </li></ul>Diagram
Magnification
 
Magnification <ul><li>To determine your magnification…you just multiply the ocular lens by the objective lens </li></ul><u...
 
 
 
 
Dissecting microscope or Stereomicroscope used to view 3-D objects
Caring for a Microscope <ul><li>Clean only with a soft cloth/tissue </li></ul><ul><li>Make sure it’s on a flat surface </l...
Carry a Microscope Correctly
Using a Microscope <ul><li>Start on the lowest magnification </li></ul><ul><li>Don’t use the coarse adjustment knob on hig...
Upcoming SlideShare
Loading in...5
×

The Microscope

2,078

Published on

Published in: Technology, Business
0 Comments
1 Like
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total Views
2,078
On Slideshare
0
From Embeds
0
Number of Embeds
3
Actions
Shares
0
Downloads
146
Comments
0
Likes
1
Embeds 0
No embeds

No notes for slide

The Microscope

  1. 1. The Microscope
  2. 3. The History <ul><li>Hans and Zacharias Janssen of Holland in the 1590’s created the “first” compound microscope </li></ul><ul><li>Anthony van Leeuwenhoek and Robert Hooke made improvements by working on the lenses </li></ul>Anthony van Leeuwenhoek 1632-1723 Robert Hooke 1635-1703 Hooke Microscope
  3. 4. The History The “First” Microscope
  4. 8. How a Microscope Works Convex Lenses are curved glass used to make microscopes (and glasses etc.) Convex Lenses bend light and focus it in one spot.
  5. 9. How a Microscope Works Ocular Lens (Magnifies Image) Objective Lens (Gathers Light, Magnifies And Focuses Image Inside Body Tube) Body Tube (Image Focuses) <ul><li>Bending Light : The objective (bottom) convex lens magnifies and focuses (bends) the image inside the body tube and the ocular convex (top) lens of a microscope magnifies it (again). </li></ul>
  6. 10. The Parts of a Microscope
  7. 11. Body Tube Nose Piece Objective Lenses Stage Clips Diaphragm Light Source Ocular Lens Arm Stage Coarse Adj Fine Adjustment Base Skip to Magnification Section
  8. 12. Body Tube <ul><li>The body tube holds the objective lenses and the ocular lens at the proper distance </li></ul>Diagram
  9. 13. Nose Piece <ul><li>The Nose Piece holds the objective lenses and can be turned to increase the magnification </li></ul>Diagram
  10. 14. Objective Lenses <ul><li>The Objective Lenses increase magnification (usually from 10x to 40x) </li></ul>Diagram
  11. 15. Stage Clips <ul><li>These 2 clips hold the slide/specimen in place on the stage. </li></ul>Diagram
  12. 16. Diaphragm <ul><li>The Diaphragm controls the amount of light on the slide/specimen </li></ul>Turn to let more light in or to make dimmer. Diagram
  13. 17. Light Source <ul><li>Projects light upwards through the diaphragm, the specimen and the lenses </li></ul><ul><li>Some have lights, others have mirrors where you must move the mirror to reflect light </li></ul>Diagram
  14. 18. Ocular Lens/Eyepiece <ul><li>Magnifies the specimen image </li></ul>Diagram
  15. 19. Arm <ul><li>Used to support the microscope when carried. Holds the body tube, nose piece and objective lenses </li></ul>Diagram
  16. 20. Stage <ul><li>Supports the slide/specimen </li></ul>Diagram
  17. 21. Coarse Adjustment Knob <ul><li>Moves the stage up and down (quickly) for focusing your image </li></ul>Diagram
  18. 22. Fine Adjustment Knob <ul><li>This knob moves the stage SLIGHTLY to sharpen the image </li></ul>Diagram
  19. 23. Base <ul><li>Supports the microscope </li></ul>Diagram
  20. 24. Magnification
  21. 26. Magnification <ul><li>To determine your magnification…you just multiply the ocular lens by the objective lens </li></ul><ul><li>Ocular 10x Objective 40x:10 x 40 = 400 </li></ul>Objective Lens have their magnification written on them. Ocular lenses usually magnifies by 10x So the object is 400 times “larger”
  22. 31. Dissecting microscope or Stereomicroscope used to view 3-D objects
  23. 32. Caring for a Microscope <ul><li>Clean only with a soft cloth/tissue </li></ul><ul><li>Make sure it’s on a flat surface </li></ul><ul><li>Don’t bang it </li></ul><ul><li>Carry it with 2 HANDS…one on the arm and the other on the base </li></ul>
  24. 33. Carry a Microscope Correctly
  25. 34. Using a Microscope <ul><li>Start on the lowest magnification </li></ul><ul><li>Don’t use the coarse adjustment knob on high magnification…you’ll break the slide!!! </li></ul><ul><li>Place slide on stage and lock clips </li></ul><ul><li>Adjust light source (if it’s a mirror…don’t stand in front of it!) </li></ul><ul><li>Use fine adjustment to focus </li></ul>
  1. A particular slide catching your eye?

    Clipping is a handy way to collect important slides you want to go back to later.

×