The Microscope

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2

Diagram

Slide 12

Stage Clips

These 2 clips hold the slide/specimen in place on the stage.

Diagram

Slide 13

Diaphragm

The Diaphragm controls the amount of light on the slide/specimen

Turn to let more light in or to

make dimmer.

Diagram

Slide 14

Light Source

Projects light upwards through the diaphragm, the specimen and the lenses

Some have lights, others have mirrors where you must move the mirror to reflect light

Diagram

Slide 15

Ocular Lens/Eyepiece

Magnifies the specimen image

Diagram

Slide 16

Arm

Used to support the microscope when carried. Holds the body tube, nose piece and objective lenses

Diagram

Slide 17

Stage

Supports the slide/specimen

Diagram

Slide 18

Coarse Adjustment Knob

Moves the stage up and down (quickly) for focusing your image

Diagram

Slide 19

Fine Adjustment Knob

This knob moves the stage SLIGHTLY to sharpen the image

Diagram

Slide 20

Base

Supports the microscope

Diagram

Slide 21

Magnification

Slide 22

Magnification

To determine your magnification…you just multiply the ocular lens by the objective lens

Ocular 10x Objective 40x:10 x 40 = 400

Objective Lens have

their magnification

written on them.

Ocular lenses usually magnifies by 10x

So the object is 400 times “larger”

Slide 23

Caring for a Microscope

Clean only with a soft cloth/tissue

Make sure it’s on a flat surface

Don’t bang it

Carry it with 2 HANDS…one on the arm and the other on the base

Slide 24

Carry a Microscope Correctly

Slide 25

Using a Microscope

Start on the lowest magnification