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Parts and Functions of the Compound Microscope
- 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
- 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!
- 9. LESSON PROPER MAGNIFYING Eyepiece It is where you look through to view the object
- 10. EYEPIECE
- 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
- 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 1. Scanner 2. Low Power Objective (LPO) 3. High Power Objective (HPO) 4. 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
Editor's Notes
- Magandang Buhay students! Welcome to our Science Unit II Module 1 on Microscopy
- Today, I am going to discuss the first lesson for this module which is all about “Parts and Functions of the Compound Microscope”.
- I have to objects that I am going to present to you, first is this. What do you call to this object? Very good, this a MAGNIFYING GLASS. What is the use of this object? Very Good! To see and make small object bigger. How about this object, what is this? Very good, this is a microscope. What is the use of this instrument? Very good, to see small objects that cannot be seen by our naked eye! Today, we will be focusing on the Microscope itself. For you to know more about this instrument, just listen carefully! Both of these objects are laboratory instruments. Both of these can make small things bigger. But, magnifying glass can make small things that can be see by our eyes to make bigger while the microscope, all small objects that cannot be seen by our eyes can be observed and make it bigger.
- MAGNIFYING PARTS are used to enlarge the view of the specimen or object to be observed
- MAGNIFYING PARTS are used to enlarge the view of the specimen or object to be observed
- MAGNIFYING PARTS are used to enlarge the view of the specimen or object to be observed
- Why? Because it has a LENS!
- MAGNIGFYING PARTS are composed of two parts – the eyepiece and objectives
- Eyepiece is a part where you thorugh to view the object. It is place on the upper parts of the microscope.
- This is an example of an eyepiece!
- Next is the objectives!
- Objectives are attached to the revolving nosepiece and the most important of the magnifying parts.
- Objectives have 4 types. They differ in size, color and magnification
- This objective has the lowest magnification which is 4, has a short size among other objectives and contain a red color. This is what we called “SCANNER”
- This objective has a short size, with 10 magnification and yellow color. This is what we called, low power objective or LPO.
- This objective IS bigger than scanner and low power objective, with 40 magnification and blue color. This is what we called the high power objective or HPO.
- This last type of objective has a same size with high power objective with 100 magnification and white color. This is the Oil immersion objective or OIO.
- Lenses of objectives have the ability to enlarge the image of the object to be observed. This is what we called MAGNIFICATION. It has a symbol of capital “X” which means how many times the object is enlarged.
- We have now the illuminating parts. Illuminating parts are used to supply and regulate light to the object to be observed.
- ILLUMINATING PARTS are composed of 2 parts – the diaphragm and mirror
- Mirror - Collects and reflects light from an external light source up into the object to be observed.
- This is an example of mirror
- DIAPHRAGM - It regulates the amount of light passing through the specimen.
- This is an example of diaphragm
- We are in the last major part, the mechanical part. Mechanical parts are used to support, protect and move parts of the microscope
- It includes the 9 specific parts – body tube, dust shield, revolving nosepiece, stage, stage clips, base, inclination joint, arm, fine adjustment knob and coarse adjustment knob. Let us know the function of each part.
- 1. BODY TUBE – It connects the eyepiece to the objectives.
- 2. DUST SHIELD - Protects the objectives from dust
- 3. Revolving Nosepiece- it holds the objectives and can be rotated to allow the shifting of objective lenses.
- 4. Stage - a platform with a central hole to the slide being studied.
- 5. Stage clips - It holds the slide in place
- 6. Base – It is a Heavy-Y shaped foot which provides support and steadiness to the microscope.
- 7. Inclination joint – it connects the arm to the base which allows tilting or inclining for easy observation.
- 8. Arm – it Supports the body tube and it is where the microscope is held and also used to support the microscope when carried
- 9. Fine Adjustment knob – it Sharpens the image of the specimen under high power objective lens.
- 10. Coarse adjustment knob – it Focuses or brings out the object to be observed and moves up the body tube up and down. Do you understand our lesson for today? To measure your understanding about this lesson, let’s have a short seatwork!
- Let us now summarize your understanding about this lesson. 1. MICROSCOPE is used to see small objects that cannot be seen by our naked eye 2. It has three (3) major parts – magnifying, illuminating and mechanical parts
- 3. Magnifying parts are used to enlarge the image of the specimen. It includes Eyepiece Objectives Objectives has 4 types: Scanner Low Power Objective (LPO) High Power Objective (HPO) Oil Immersion Objective (OIO)
- 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: Body tube Dust shield Revolving nosepiece Stage Stage clips Base Fine Adjustment knob Coarse Adjustment knob Arm
- 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: Body tube Dust shield Revolving nosepiece Stage Stage clips Base Fine Adjustment knob Coarse Adjustment knob Arm
- Congratulations! You successfully understand the whole lesson! I hope you have learned a lot from this. Based on my observation, you will be having a positive result in this module. I think you are now prepared for the next lesson. If you have some clarifications or questions regarding this module, don’t hesitate to approach your Science teacher! Again, you did a great job!