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parts of microscope
Question | Answer |
---|---|
name 3 types of microscopes? | TEM- transmission electron microscope SEM- scanning electron microscope CLM- compound light microscope (cheapest) |
what is the eyepiece or ocular lens? | the lens that you look into that magnifies the specimen, usually 10X |
what is the Coarse adjustment knob? | this knob moves the stage up or down to focus on the specimen. This is the first knob you use to focus on a specimen. |
what is the fine adjustment knob? | this knob is used to sharpen an image under low and medium power. |
what is the revolving nosepiece? | this is where the objective lenses are mounted. Rotate the lens to select low, medium, or high power lenses. |
what are the objective lenses? | 3 lenses that magnify the specimen. low power (4X) medium power (10X) high power (40X) |
what is the stage? | This is where you place a slide for observation. must be dry |
what are the stage clips? | these are used to hold a slide in position on a stage. |
what is the diaphragm? | this has different sized wholes that let different amounts of light pass through the specimen on the stage |
what is the lamp | this supplies the light that passes through the specimen on the stage. |
what is the arm? | this holds the tube in place and is used to carry the microscope. |
what is the base? | this provides a stable platform for the microscope. needs to be set on a flat, dry surface. |
what is the tube? | this separates the ocular lens from the objective lens at a distance calculated for proper magnification. |
what is the condenser lens? | this is under the stage. It helps focus right onto the specimen on top of the stage. |