Microscopes

• What is an electron microscope?

  Electron microscopes use electrons instead of light to produce an image.
• What is a light microscope?

  a Microscope that passes light through an object placed on a slide on the stage, then through two glass lenses- the objective lens and the eyepiece lens.
• What do the lenses do?

  The lenses magnify the object , so when you view it through the eyepiece, you can see it in more detail.
• Comparing microscope

  Light microscope Electron microscopes

  • Cheap to buy and operate - Expensive to buy and operate
  • Small and portable - large and difficult to move
  • Simple to prepare a sample - Sample preparation is complex
• • In Light microscope the natural colour of sample is seen unless staining in used.
  • In Electron microscope it produces black and white images , false colour can be added to the image.
• A typical light microscope

  A= Objective lenses

  B= Eyepiece lens

  C= Focusing wheel

  D= Light source

  E= Stage