These are the lenses at the top that one looks through. They usually have a magnification power of 10x or 15x.
#2 Head - This is the upper part of the microscope that holds the optical elements in the upper part of the instrument.
#3 Arm (Frame) - This is the backbone of the microscope that supports the head and connects it to the base. It is used for carrying the microscope.
#4 Aperture
An opening in the stage through which light passes to illuminate the specimen.
#5 Stage Controls
These knobs move the mechanical stage left, right, forward, and backward.
#6 Coarse Adjustment
This knob is used to bring the specimen into the general focus.
#7 Fine Adjustment
This knob is used to fine-tune the focus on the specimen, after using the coarse adjustment knob.
8# Brightness Adjustment
This allows the user to adjust the intensity of the light source.
#9 Base
The bottom of the microscope, used for support.
#10 Light Switch
This switch turns the illumination source on and off.
#11 Illumination
The microscope's light source, located at the base, which shines light upwards to illuminate the specimen.
#12 Condenser
A lens system found beneath the stage used to focus the light onto the specimen.
#13 Mechanical Stage
A platform that holds the slide and can be moved precisely with knobs to center or move the specimen.
#14 Stage Clip
These hold the slides in place on the stage.
#15 ObjectiveLenses
These are the primary optical lenses on a microscope. They range in power from 4x to 100x and are typically found in sets of three or four on a microscope.
#16 Nose Piece
This rotating part holds the objective lenses. The user can rotate the nosepiece to switch between different objective lenses.
#17 Diopter Adjustment
Allows the user to compensate for the difference in vision between their two eyes when looking through the binocular eyepieces.