Parts and Function of the Compound Light Microscope

These lenses known as ocular lens is what you actually look through to see your specimen

• Coarse adjustment knob, M

• Eye piece, A

• Eye piece, D

• High power objective lens, D

This part of the microscope connects the eye piece of the rotating nose piece

• Arm, N

• Base, K

• Fine adjustment knob, L

• Body tube, B

This structure holds the objective lenses and can be moved to switch the objective lenses

• Rotating nose piece, C

• Stage, H

• Arm, N

• Diaphragm, I

The location on the microscope where the slide is placed

• High power objective lens, D

• Scanning power objective lens, F

• Base, K

• Stage, H

Lenses used to magnify the image

• Eye piece,A

• Diaphragm, I

• Objective lenses, D E F

• Light source, J

Part of the microscope that produces light

• Objective lenses, D E F

• Light J

• Base K

• Arm N

Part of the microscope that you should hold the microscope by when carrying it

• Arm and Base

• Eye piece and Base

• Base and coarse adjustment knob

• Coarse adjustment knob and rotating nose piece

This part of the microscope is used to help focus the image - it moves the stage up and down to help bring the image into focus

• Fine adjustment knob, L

• Coarse adjustment knob, M

• High power objective lens, D

• Diaphragm, I

This part of the microscope controls the amount of light that moves through the slide

• Light, J

• Base, K

• Fine adjustment knob, L

• Diaphragm, I

This part of the microscope is used to focus on the small details of the image

• Coarse adjustment knob M

• Stage H

• Diaphragm I

• Fine adjustment knob L