BIOL120 Microscope parts

Base function

Support

Sub-stage light function

Source of light

Stage function

Platform slide or specimen rests on, moves via mechanical stage controls

Condenser function

Condenses light

Iris diaphragm lever function

Hole is adjusted by flaps with a side-to-side lever

Coarse adjustment knob function

Focus on specimen

Fine adjusting knob function

Sharpens specimen focus

Arm function

Structural support

Ocular function

Eyepiece, the pointer is found inside one of these lenses.

Rotating nose piece function

Contains the three objective lenses

Objective lenses function

Primary lens for viewing specimen

Parafocal function

Microscopes retain same focal plane when switching objective lenses