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Microscope Parts and Functions
Presented by: Joevani S. Peñol
Microscope
• An optical instrument that uses a lens or a
combination of lenses to produce magnified
images of small objects, especially of objects
too small to be seen by the unaided eye.
Microscope Parts and Functions
• Arm- Supports the tube and connects it to the
base
• Base- The bottom of the microscope, used for
support
• Eyepiece- Where you look to see the image of
your specimen.
Arm
Eyepiece
Base
Microscope Parts and Functions
• Body tube- Connects the eyepiece to the
objective lenses.
• Revolving Nosepiece- This is the part that
holds two or more objective lenses and can be
rotated to easily change power.
• Stage- The flat platform where you place your
slides.
Body tube
Stage
Revolving
Nosepiece
Microscope Parts and Functions
• Fine Adjustment Knob-small, round knob on
the side of the microscope used to fine-tune
the focus of your specimen
• Coarse Adjustment Knob--large, round knob
on the side of the microscope used for
focusing the specimen.
• Stage Clips-hold the slide in place
Coarse
Adjustment Knob
Fine Adjustment
Knob
Stage Clips
Microscope Parts and Functions
• Iris Diaphragm- controls the light going
thorough the aperture.
• Mirror/Light source-used to reflect light to the
specimen/source of light.
• Objective lenses-may have (scanner, Low, high
Oil immersion objectives) and is used use to
increase the magnification of the specimen.
Iris Diaphragm
Objective
Lenses
Light Source
Microscope Parts and Functions
• Aperture is the hole in the stage through
which the base (transmitted) light reaches the
stage.
• Condenser is used to collect and focus the
light from the illuminator on to the specimen.
It is located under the stage often in
conjunction with an iris diaphragm.
Proper Way of Focusing the
Microscope
• Always observe the specimen or object using
the LOWEST POWER object first.
• Focus using the COARSE ADJUSTMENT KNOB
to bring the object into focus. Bring the object
into sharp focus by using the fine adjustment
knob.
Proper Way of Focusing the
Microscope
• Focus, and then move to a higher power
objective, if needed.
• Use only the FINE ADJUSTMENT KNOB when
using the HIGHEST (longest) POWER
OBJECTIVE.
Proper Way of Focusing the
Microscope
• Keep both eyes open to reduce eyestrain.
Keep eye slightly above the eyepiece to
reduce eyelash interference.
• To find out the total magnification of the
object, multiply the power of the eyepiece
lens (10X) by the power of the objective.
Handling the Microscope
• Always use two hands to move the
microscope. Place one hand around the arm,
lift the scope, and then put your other hand
under the base of the scope for support.
• Be gentle.
Storing the Microscope
• Dust is an enemy to microscope lenses; always
keep the microscope covered when not in use.
References
• http://www.thefreedictionary.com/microscop
e
• http://www.saskschools.ca/curr_content/biol
ogy20/unit1/UNIT1MODULE2LESSON1c.htm
• http://www.microscope-
microscope.org/basic/microscope-parts.htm

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Microscope parts and functions

  • 1. Microscope Parts and Functions Presented by: Joevani S. Peñol
  • 2. Microscope • An optical instrument that uses a lens or a combination of lenses to produce magnified images of small objects, especially of objects too small to be seen by the unaided eye.
  • 3. Microscope Parts and Functions • Arm- Supports the tube and connects it to the base • Base- The bottom of the microscope, used for support • Eyepiece- Where you look to see the image of your specimen.
  • 5. Microscope Parts and Functions • Body tube- Connects the eyepiece to the objective lenses. • Revolving Nosepiece- This is the part that holds two or more objective lenses and can be rotated to easily change power. • Stage- The flat platform where you place your slides.
  • 7. Microscope Parts and Functions • Fine Adjustment Knob-small, round knob on the side of the microscope used to fine-tune the focus of your specimen • Coarse Adjustment Knob--large, round knob on the side of the microscope used for focusing the specimen. • Stage Clips-hold the slide in place
  • 9. Microscope Parts and Functions • Iris Diaphragm- controls the light going thorough the aperture. • Mirror/Light source-used to reflect light to the specimen/source of light. • Objective lenses-may have (scanner, Low, high Oil immersion objectives) and is used use to increase the magnification of the specimen.
  • 11. Microscope Parts and Functions • Aperture is the hole in the stage through which the base (transmitted) light reaches the stage. • Condenser is used to collect and focus the light from the illuminator on to the specimen. It is located under the stage often in conjunction with an iris diaphragm.
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  • 13. Proper Way of Focusing the Microscope • Always observe the specimen or object using the LOWEST POWER object first. • Focus using the COARSE ADJUSTMENT KNOB to bring the object into focus. Bring the object into sharp focus by using the fine adjustment knob.
  • 14. Proper Way of Focusing the Microscope • Focus, and then move to a higher power objective, if needed. • Use only the FINE ADJUSTMENT KNOB when using the HIGHEST (longest) POWER OBJECTIVE.
  • 15. Proper Way of Focusing the Microscope • Keep both eyes open to reduce eyestrain. Keep eye slightly above the eyepiece to reduce eyelash interference. • To find out the total magnification of the object, multiply the power of the eyepiece lens (10X) by the power of the objective.
  • 16. Handling the Microscope • Always use two hands to move the microscope. Place one hand around the arm, lift the scope, and then put your other hand under the base of the scope for support. • Be gentle.
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  • 18. Storing the Microscope • Dust is an enemy to microscope lenses; always keep the microscope covered when not in use.