Definition of Parts
Base Illuminator Lens
Directs the light source towards the slide
Focusing Knob
Used to bring the slide into the sight and focus
Disc Iris Diaphragm
Controls the amount of light that hits the slide from the base illuminator
Dimmer
Controls the amount of light that escapes from the base lens
Nosepiece
Houses the objective lenses
Rotating Monocular Head
Houses the eyepiece and optics of the microscope