The Compound Light Microscope Parts


this part on the side of the microscope is used to support it when it is carried


the bottom part of the microscope

coarse adjustment knob

this part moves the stage up and down to help you get the specimen into view

cover slip

name for the small plastic or glass piece that is used to cover a water drop on a slide


this part of the microscope helps you adjust the amount of light that reaches the specimen


this part allows you to view the image on the stage and contains the ocular lens

fine adjustment knob

this part moves the stage slightly to help you sharpen or "fine" tune your view of the specimen

light source

projects light upwards through the diaphragm to allow you to see the specimen


this part holds the objective lenses and is able to rotate to change magnification

objective lenses

these are found on the nosepiece and range from low to high power


refers to the degree of magnification for a lens


small glass plate on which specimen are placed for viewing


part of the microscope that supports the slide that is being viewed

stage clips

these are used to hold a slide in place on the stage.

high power objective

provides a magnification of 40x and is the longest objective

low power objective

provides a magnification of 10x and is the shortest objective

scanning objective lens

the smallest lens on the nosepiece. It magnifies an image approx. 4x.

oil immersion lens

100x objective lens