How To Use A Microscope

Ocular 1 Lens

Coarse 10 adjustment Fine 11 adjustment Arm 12

Parts of microscope

2 Body tube Revolving 3 nose piece High 4 & Low-Power objective Clip 5 6 Stage 7 Diaphragm Mirror 8 9 Base

THE FUNCTION OF MICROSCOPE

NO

NAME OF PART

1 2 3 4 5 6 7 8 9 11 12

COARSE ADJUSMENT FINE ADJUSMENT

FUNCTION FOCUSES THE IMAGE UNDER LOW POWER SHARPENS THE IMAGE UNDER HIGH AND LOW MAGNIFICATION

LOW POWER OBJECTIVE

CONTAINS THE LENS WITH THE LOWER POWER MAGNIFICATION

HIGH POWER OBJECTIVE

CONTAINS THE LENS WITH THE MOST POWER MAGNIFICATION

STAGE CLIPS

HOLDS THE MICROSCOPE SLIDE IN PLACE

EYEPIECE

CONTAINS A MAGNIFYING LENS YOU LOOK THROUGH HOLDS AND TURNS THE OBJECTIVES INTO VIEWING POSITION

REVOLVING NOSE PIECE MIRROR ARM STAGE BODY TUBE

ALLOWS LIGHT TO GO UPWARD THROUGH THE DIAPHRAGM, THE SPECIMEN, AND THE LENSES SUPPORTS THE BODY TUBE PLATFORM USE TO SUPPORT THE MICROSCOPE SLIDE CONNECTS THE EYEPIECE TO THE REVOLVING NOSE PIECE

PROCEDUR IN USING A MICROSCOPE 1. Microscope should be handled two hands 2. When observing specimen, we use lowpower objective lens 3. Place the specimen on the stage right under the objective lens 4. Move objective lens closer to the object slowly, while looking from the side of the microscope

5. Notice the image through the oculer lens 6. By using the coarse adjustment, move the objective lens closer to or farther from object 7. Adjust image’s position so as to be seen in the middle of the observation field 8. If the image is not yet seen, we have to repeat steps 3 and 4 9. If the image is not clearly seen ,do use hight power objective lens

10. Pay attention the distance between objective lens and the specimen, when changing from low-power to hight-power objective lens 11. Don’t expose the mirror directly to the sun, because the sunlight will be reflected to your eyes and may affect your vision 12. Be careful when using a cover glass. It breaks easily and may hurt your hand.