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Parts of a Microscope and Their Functions
What are Microscopes?
A microscope is a laboratory optical instrument, which is used to examine or study or see
objects that are too small to be seen by the naked eye.
In the laboratory, Microscopes are used to visualize minute
objects, for example; plant cell, animal cell, bacteria, fungi, etc.
Microscopes consist of different types and numbers of magnifying
lenses. All microscopes of high grade have achromatic,
parcentered, parfocal lenses.
A Microscopes are made up of two parts, the holding part which
supports the microscopes and its components, and the optical
part which is used for magnification and viewing of the specimen
images. They contain 2 systems of lenses, one is eyepiece and the
other is one or more objective lenses.
General Working Principle of Microscopes
In a microscope, light rays first passed through the specimen and then
is transmitted through two sets of lenses, the objective, which is
nearest to the specimen, and the eyepiece, which is further away from
the specimen.
The magnified image of the specimen is first produced by the objective.
This is known as the primary image. The eyepiece then magnifies the
primary image into the final one that is seen by the observer. The
total magnification obtainable by the microscopes is the product of the
magnification of the objective and that of the eyepiece.
Objective
magnification
Eyepiece
magnification
Total magnification
10X 10X 100X
40X 10X 400X
100X 10X 1000X
Applications of Microscopes
1. To study protein interaction or protein conformation.
2. To Study the membrane dynamics.
3. To study the concentration of calcium ion and pH changes.
4. To Determine the shape of cells and intercellular structure.
5. To determine the localization of specific proteins.
6. To Study the Dynamics of protein.
7. To study the iron concentration.
8. Microscopes also used in forensic laboratories.
9. Used in counting of blood cells.
The microscope parts are divided into two main categories, such as;
1. Structural parts of microscope
2. Optical parts of microscope
Parts of a Microscope
Structural parts of a microscope Optical parts of a microscope
1. Eyepiece
2. Eyepiece tube
3. Nosepiece
4. Microscope Objective lenses
5. The Adjustment knobs
6. Stage
7. Stage clips
8. Aperture
9. Microscopic illuminator
10.Condenser
11.Diaphragm
1. Head
2. Arm
3. Base
The structural parts of microscope provide
supports and connecting all the components
of microscope. There are present three
important structural parts of microscope
such as;
The optical part of the Microscope plays an
important role to magnify the object. It
consists of the following components;
Structural parts of a microscope
1. Head
2. Arm
3. Base
• It is located at the upper portion of
microscope. The head portion of
microscope is also known as the Body
tube.
• The head portion or body tube of
microscope connects the eyepiece to the
objective lenses.
• It refers to the holding portion of a
microscope, which is used to carry the
microscopes.
• Few high-quality microscopes contain an
articulated arm with more than one joint
allowing more movement of the
microscopic head for better viewing.
• The arm Supports the head or body tube
and connects it to the base of the
microscopes.
• The bottom portion of Microscopes on
which the arm portion is standing. It
holds all the essential components.
• The Base portion provides support to the
microscope.
Optical parts of a microscope
1. Eyepiece
2. Eyepiece tube
3. Nosepiece
4. Objective lenses
5. Adjustment knobs
6. Stage clips
7. Aperture
8. Microscopic illuminator
9. Condenser
10. Diaphragm
11. The rack stop
Thank You

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Parts of a Microscope and Their Functions

  • 1. Parts of a Microscope and Their Functions What are Microscopes? A microscope is a laboratory optical instrument, which is used to examine or study or see objects that are too small to be seen by the naked eye. In the laboratory, Microscopes are used to visualize minute objects, for example; plant cell, animal cell, bacteria, fungi, etc. Microscopes consist of different types and numbers of magnifying lenses. All microscopes of high grade have achromatic, parcentered, parfocal lenses. A Microscopes are made up of two parts, the holding part which supports the microscopes and its components, and the optical part which is used for magnification and viewing of the specimen images. They contain 2 systems of lenses, one is eyepiece and the other is one or more objective lenses.
  • 2. General Working Principle of Microscopes In a microscope, light rays first passed through the specimen and then is transmitted through two sets of lenses, the objective, which is nearest to the specimen, and the eyepiece, which is further away from the specimen. The magnified image of the specimen is first produced by the objective. This is known as the primary image. The eyepiece then magnifies the primary image into the final one that is seen by the observer. The total magnification obtainable by the microscopes is the product of the magnification of the objective and that of the eyepiece. Objective magnification Eyepiece magnification Total magnification 10X 10X 100X 40X 10X 400X 100X 10X 1000X
  • 3. Applications of Microscopes 1. To study protein interaction or protein conformation. 2. To Study the membrane dynamics. 3. To study the concentration of calcium ion and pH changes. 4. To Determine the shape of cells and intercellular structure. 5. To determine the localization of specific proteins. 6. To Study the Dynamics of protein. 7. To study the iron concentration. 8. Microscopes also used in forensic laboratories. 9. Used in counting of blood cells.
  • 4. The microscope parts are divided into two main categories, such as; 1. Structural parts of microscope 2. Optical parts of microscope Parts of a Microscope Structural parts of a microscope Optical parts of a microscope 1. Eyepiece 2. Eyepiece tube 3. Nosepiece 4. Microscope Objective lenses 5. The Adjustment knobs 6. Stage 7. Stage clips 8. Aperture 9. Microscopic illuminator 10.Condenser 11.Diaphragm 1. Head 2. Arm 3. Base The structural parts of microscope provide supports and connecting all the components of microscope. There are present three important structural parts of microscope such as; The optical part of the Microscope plays an important role to magnify the object. It consists of the following components;
  • 5. Structural parts of a microscope 1. Head 2. Arm 3. Base • It is located at the upper portion of microscope. The head portion of microscope is also known as the Body tube. • The head portion or body tube of microscope connects the eyepiece to the objective lenses. • It refers to the holding portion of a microscope, which is used to carry the microscopes. • Few high-quality microscopes contain an articulated arm with more than one joint allowing more movement of the microscopic head for better viewing. • The arm Supports the head or body tube and connects it to the base of the microscopes. • The bottom portion of Microscopes on which the arm portion is standing. It holds all the essential components. • The Base portion provides support to the microscope.
  • 6. Optical parts of a microscope 1. Eyepiece 2. Eyepiece tube 3. Nosepiece 4. Objective lenses 5. Adjustment knobs 6. Stage clips 7. Aperture 8. Microscopic illuminator 9. Condenser 10. Diaphragm 11. The rack stop