Parts of the Microscope and Their Function

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Presentation transcript:

Parts of the Microscope and Their Function On the next slide there is an image of a microscope, very similar to the scopes we use in class. Click on the boxes to see the name and function of each part of the microscope.

Rules of using a microscope Always carry with 2 hands Make sure microscope is ready for use Do not force knobs Be careful of the cords

Parts of a microscope Contains the lens and magnifies the image for the viewer

Parts of a microscope Eyepiece Contains the 10X magnifying lens Contains the lens and magnifies the image for the viewer

Parts of a microscope Coarse Adjustment Knob Focuses the image under low power Use this first Used for focusing the microscope at different objectives

Parts of a microscope Fine Adjustment Knob Focuses the image under high power Use this last Used for focusing the microscope at different objectives

Parts of a microscope Nosepiece Holds the objective lenses Revolves to change magnification Revolving circular structure containing the objectives

Parts of a microscope Objectives Low power (short) Magnifies 4X Medium power (medium) Magnifies 10X High power (long) Magnifies 40X Lens that receives light from object to form a magnified image that you view through the eyepiece

Parts of a microscope Stage Supports and holds the microscope slide while viewing Surface on which the slide is placed

Parts of a microscope Stage clips Place on microscope slide to secure into place after you have focused on your specimen Used to hold the slide on the stage

Parts of a microscope Diaphragm Controls the amount of light available while viewing sample Controls the amount of light that passes up through the bottom of the stage

Parts of a microscope Light source Shines light up through the diaphragm and stage to light the object being viewed Lighted area is called your “Field of View” Provides a steady stream of light that passes up through the bottom of the stage

Parts of a microscope Arm Supports the body tube which connects the eyepiece to the set of objective lenses Part of the microscope that is used for carrying

Parts of a microscope Body tube Tube extending from eyepiece to the objectives

Parts of a microscope Base Supports the microscope

Magnification Multiply the eyepiece magnification (10X) by the objective magnification (4X, 10X, 40X) Example: 4 x 10 = 40X total

How to use a microscope Place the slide on the stage Use stage clips to secure slide Adjust nosepiece to lowest setting (Lowest = shortest objective) Look into eyepiece Use coarse adjustment knob