Microscope

Front 1

Eyepiece/Ocular

Back 1

Produces a secondarily enlarged virtual image, further magnify the real image projected by the objective.

Front 2

Observation tube

Back 2

Connects the eyepiece 30º-angle to objective lenses, either binocular or trinocular

Front 3

Observation tube (OT) clamping knob

Back 3

Keeps the observation tube in place

Front 4

Objective lenses

Back 4

Lenses which form primary image of magnified specimen, available in scanning (4x), low power (10x), high power/high dry (40x), and oil immersion (100x)

Front 5

Revolving nosepiece

Back 5

Use to rotate objectives

Front 6

Coarse adjustment knob

Back 6

Brings slide into view (upward and downward direction)

Front 7

Fine adjustment knob

Back 7

Sharpens the image view and increases the detail of the specimen

Front 8

Condenser with iris diaphragm

Back 8

Iris diaphragm adjust the amount of light that reaches the specimen; condenser gathers and focuses light from the illuminator onto the specimen being viewed.

Front 9

Condenser focus knob

Back 9

Moves the condenser up or down to control the lighting focus on the specimen

Front 10

Mechanical stage

Back 10

Flat platform where the slide is placed

Front 11

Stage control knobs (X- and Y-axis)

Back 11

Move the stage left and right (“Y”) or up and down (“X”)

Front 12

Main switch

Back 12

Located on the base and turns the illuminator off and on.

Front 13

Light source/illuminator

Back 13

Made either LED or halogen , or tungsten light bulb as the light source of the microscope

Front 14

Light intensity adjustment knob/Brightness adjustment knob

Back 14

Adjust light intensity

Front 15

Filter

Back 15

Placed in light path, use to balance the light created by tungsten or halogen lights to balance out color of light

Front 16

Arm

Back 16

Curved/slanted part which is held while carrying the microscope, supports body tube and the objectives

Front 17

Base

Back 17

Supports the microscope and it’s where the illuminator is located.

Front 18

Pre-focusing knob

Back 18

Prevents the objectives from damaging the specimen (slide)

Front 19

Interpupillary adjustment scale

Back 19

Adjust the focusing difference between eyes and indicates distance between eyes. Ranging from 48—75mm.

Front 20

Diopter ring adjustment

Back 20

Use to change focus on one eyepiece so as to correct for any difference in vision between observer’s eyes.

Front 21

Aperture

Back 21

Hole in the stage through which the base (transmitted) light reaches the stage