The Microscope

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The Microscope
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Compound Microscope

• Robert Hooke 1665
• Piece of cork
• Observation cells are filled with juices

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Anton Van Leeuwenhoek

• 1670 pond water
• Discovered animalcules
• Now called microorganisms

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Two Types of Microscopes

• Light
• Glass lens and light rays
• Electron
• Electrons instead of light

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Parts

• Arm
• Base
• Oculars
• Objectives
• Stage
• Coarse Adjustment
• Fine Adjustment
• Light Source

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Procedures for Transport

• Two hands!!!!
• Arm
• Base

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Using the Microscope

• Start on 4x scanning objective!
• Use Coarse Adjustment
• After focus you can move up in magnification to
  10X
• Use Fine adjustment

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Storing Microscopes

• Turn off light source
• Wrap cord around bottom of arm
• Lower stage
• 4X objective
• Cover

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Magnification

• To determine your magnificationyou just multiply
  the ocular lens by the objective lens
• Ocular 10x Objective 40x10 x 40 400

So the object is 400 times larger
Objective Lens have their magnification written
on them.
Ocular lenses usually magnifies by 10x
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