Parts and Functions of the Compound Microscope

Paliparan National High School (DepEd Dasma)

1. Science Unit II – Module 1 Microscopy 7 Prepared by: Isagani P. Dioneda Jr .

2. Science Unit II – Module 1 Microscopy 7 Prepared by: Isagani P. Dioneda Jr . Lesson 1 Parts and Functions of the Compound Microscope

3. INTRODUCTION MAGNIFYING GLASS - To see and make small things bigger MICROSCOPE - to see small things that cannot be seen by our naked eye

4. LESSON PROPER COMPOUND MICROSCOPE

5. LESSON PROPER MAGNIFYING ILLUMINATING MECHANICAL 3 MAJOR PARTS

6. LESSON PROPER MAGNIFYING are used to enlarge the view of the specimen or object to be observed

7. LESSON PROPER MAGNIFYING It has a LENS!

8. LESSON PROPER MAGNIFYING Eyepiece Objectives

9. LESSON PROPER MAGNIFYING Eyepiece It is where you look through to view the object

10. EYEPIECE

11. LESSON PROPER Objectives

12. LESSON PROPER Attached to the revolving nosepiece and the most important of the magnifying parts Objectives

13. 4 kinds of objectives:

14. SCANNER

15. LOW POWER OBJECTIVE (LPO)

16. HIGH POWER OBJECTIVE (HPO)

17. OIL IMMERSION OBJECTIVE (OIO)

18. LESSON PROPER ability to enlarge the image of the object to be observed “ X ” MAGNIFICATION symbol for magnification which means how many times the object enlarged

19. How to compute the total magnification?

20. multiply to is equal to

21. LESSON PROPER ILLUMINATING used to supply and regulate light to the object to be observed. ILLUMINATING

22. LESSON PROPER Diaphragm Mirror ILLUMINATING

23. LESSON PROPER Collects and reflects light from an external light source up into the object to be observed.   Mirror

24. MIRROR

25. LESSON PROPER Diaphragm It regulates the amount of light passing through the specimen.

26. DIAPHRAGM

27. LESSON PROPER MECHANICAL used to support, protect and move parts of the microscope

28. LESSON PROPER MECHANICAL Body Tube Revolving Nosepiece Dust Shield Base Inclination Joint Arm Fine adjustment knob Coarse adjustment knob Stage Stage clips

29. LESSON PROPER MECHANICAL Body Tube Connects the eyepiece to the objectives.

30. LESSON PROPER MECHANICAL Protects the objectives from dust Dust Shield

31. LESSON PROPER MECHANICAL Revolving Nosepiece holds the objectives and can be rotated to allow the shifting of objective lenses.

32. LESSON PROPER MECHANICAL Stage a platform with a central hole to the slide being studied.

33. LESSON PROPER MECHANICAL Stage Clips It holds the slide in place

34. LESSON PROPER MECHANICAL Base Heavy-Y shaped foot which provides support and steadiness to the microscope.

35. LESSON PROPER MECHANICAL Inclination joint Connects the arm to the base which allows tilting or inclining for easy observation.

36. LESSON PROPER MECHANICAL Arm Supports the body tube and it is where the microscope is held and also used to support the microscope when carried

37. LESSON PROPER MECHANICAL Fine adjustment knob Sharpens the image of the specimen under high power objective lens.

38. LESSON PROPER MECHANICAL Course adjustment knob Focuses or brings out the object to be observed and moves up the body tube up and down.

39. SUMMARY MICROSCOPE is used to see small objects that cannot be seen by our naked eye It has three (3) major parts – magnifying, illuminating and mechanical parts

40. SUMMARY Magnifying parts are used to enlarge the image of the specimen. It includes Eyepiece Objectives Scanner Low Power Objective (LPO) High Power Objective (HPO) Oil Immersion Objective (OIO)

41. SUMMARY Illuminating parts are used to provide light so that the image is seen. It includes: Diaphragm Mirror Mechanical parts are used to support and protect the microscope. It includes:

42. SUMMARY Body tube Dust shield Revolving nosepiece Stage Stage clips Base Fine Adjustment knob Coarse Adjustment knob Arm