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The Microscope

Discover the world beneath the lens! Learn about magnification levels, types of microscopes, and dive into the microscopic realm of bacteria, dust mites, and diseases like HIV. Understand resolving power, depth of field, and their impact on microscopy.

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The Microscope

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  1. The Microscope

  2. Grading for Mrs. J • Test 1 -- 20 • Test 2 -- 20 • Microscopy lab -- 10 • Microscopy book -- 10 • Poster -- 15 • Cancer PowerPoint and presentation-- 15 • Worksheets -- 10 • Total: 100

  3. The microscope allows us to see things from a different perspective.

  4. 20X Thale Cress Polen

  5. 150X Flower Stem, Spiny Sow Thistle

  6. 4X Anglerfish Ovary

  7. 20X fish scales

  8. 10X Algae

  9. Dandelion

  10. Butterfly Egg

  11. Jumping Spider

  12. Really Gross Vote • Continue: Yes or No?

  13. Your pillow

  14. Your pillow up close – Dust Mites

  15. Dental Plaque on your Teeth

  16. Dental Plaque Close UpBacteria and Bacteria Poop

  17. Your eyelashes (Pretty harmless, right?)

  18. Your eyelashes (a nest of mites)

  19. Your tongue

  20. Your tongue

  21. Diseases HIV

  22. Heart disease (plaque)

  23. Cervical and Prostate Cancer

  24. Parts of a Microscope

  25. Ocular Lens Course Adjustment Body Fine Adjustment Turret/Revolving Nosepiece Objective Lens Stage Clips Arm Stage Iris/Diaphragm Stage Height Adjustment Light Source Base 40X, 100X, 400X

  26. Micrometres to Millimetres 1000 µm = 1 mm

  27. Microscope Notes • Resolving Power: The ability to show separate objects as distinct. • Depth of Field: Refers to the thickness of an image that is in focus at any one time. Smaller depth of field larger depth of field

  28. Types of microscope • Simple: Has the lowest level of magnification. Uses one lens and a mirror as a light source.

  29. Compound: Uses two or more lenses and have greater magnification ability. Eyepiece magnification = 10X Highest Power Lens = 40X Total Highest power = 10 X 40 = 400X

  30. Electron: These use an electron beam to scan or pass through a sample in order to produce an image. They can achieve magnifications of up to 10,000,000 X

  31. Effects of Magnification on the Field of View (FOV): • The highest the magnification, the smallest the field diameter will be. Low power lens : Field Diameter = 4000 μm Medium power lens : Field Diameter = 1600 μm High power lens: Field Diameter = 400 μm

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