<p> The Wonderful World of the Microscope Anton van Leeuwenhoek - Dutch Businessman 1600’s - Invented first powerful microscope (300X) - Examined pond water & saw “little animals”</p><p>TYPES OF MICROSCOPES 1. Simple Microscope- 1 lens. Ex. Magnifying lens 2. Compound Light Microscope- uses light and many lenses to view small objects. *Our Lab* 3. Electron Microscope- uses a beam of electrons to view extremely small objects.</p><p>Magnification- Enlargement of a small object. Ocular Lens X Objective Lens = Total Magnification 10X X 4X = 40X 10X X 10X = 100X 10X X 40X = 400X</p><p>Proper Carrying Procedure One hand on arm, one hand on base, electric cord securely wrapped and looking forward.</p><p>Proper Microscope Technique 1. Put slide under stage clips. 2. Focus using low power (4X). Coarse -> Fine 3. Switch to higher power (10X or 40X). *ONLY USE FINE ADJUSTMENT ON 40X LENS! Parts of a Compound Light Microscope Eyepiece- piece you look through, magnifies 10 times (10x)</p><p>Arm- supports body tube</p><p>Body Tube- tube of mirrors connecting objective lens and eyepiece</p><p>Stage- holds the slide</p><p>Stage Clips- holds slides in place</p><p>Stage Opening- circle where light passes through</p><p>Coarse Adjustment- used for FIRST focusing, moves body tube</p><p>Fine Adjustment- sharpens image, final focusing</p><p>Base- bottom</p><p>Illuminator/Light-</p><p>Diaphragm- controls the amount of light</p><p>Low Power Objective- 4x or 10x; locates specimen</p><p>High Power Objective- 40x; greater magnification</p><p>Revolving Nosepiece- moves lens into place</p><p>Slide- holds the specimen (glass or plastic)</p><p>Slide Cover- covers specimen so it doesn’t move</p><p>Lens Paper- cleans lenses</p>