Microscope Parts and Functions

Front

Arm

Back

Supports the body tube in place over the stage

Front

Base

Back

Supports all other parts of the microscope

Front

Body Tube

Back

Holds the eyepiece and lenses in position

Front

Coarse Adjustment

Back

The large knob which moves the body tube to produce large changes in focus

Front

Diaphragm

Back

Controls the amount of light that passes through the sample

Front

Eyepiece/Ocular

Back

What you look through (Magnifies 10x)

Front

Fine Adjustment

Back

The small knob which moves the body tube to produce small changes in focus

Front

Lamp/Mirror

Back

Shines light through the sample

Front

Nosepiece

Back

Holds the objective lenses and allows you to change lenses

Front

Objective Lenses

Back

Lenses with different magnifications (4x, 10x, 40x)