Friday 6 March 2020

Parts of a Compound Microscope - Labeled (with diagrams)

A compound microscope is known as a high-power microscope that enables you to achieve a high level of magnification. Smaller specimens can be thoroughly viewed using a compound microscope. Let us take a look at the different parts of a compound microscope and understand each key component.

The figure above is the standard image of a compound microscope - labelled pictutes


Image 1: The figure above is the standard image of a compound microscope.
 image source: 5.imimg.com

The structural components of a compound microscope.



The basic parts of a compound microscope which are labelled in the picture


Picture 2: The basic parts of a compound microscope.
image source : optimaxonline.com

Head/body

it is where the upper optical parts of the microscope can be found.

Base

It contains the illuminator, but its main function is to support the entire microscope.

Arm

It is used to carry the microscope and at the same time connect the base of the microscope to the head. (1, 2, 3, and 4)




Image 3: A compound microscope with a corresponding label of the different parts.
imagesource:  images.slideplayer.com


The optical components of a compound microscope.



Eyepieces and objective lenses with corresponding magnifications labelled in the images


Image 4: Eyepieces and objective lenses with corresponding magnifications.
image source: www.cas.miamioh.edu


Eyepiece/ocular

It is situated at the top of the microscope and comes in various magnifying power.

Eyepiece tube

It holds the ocular or eyepiece just above the objective lens.

Objective lenses

In a compound microscope, the objective lenses are the main lenses which range from 4x to 100x.

Nosepiece

It is where the objective lenses are placed. You can easily rotate the nosepiece, which makes it easy for you to choose your preferred objective lens

Coarse and fine focus knobs

They are the parts of the microscope mainly used to focus the microscope. (4, 5, 6, and 7)

Stage

The area of the microscope where the specimen to be studied is placed.  When working with higher magnifications, a mechanical stage is used as it allows easy movement of specimen slide, specifically, when working with delicate specimens.

Stage clips

When there’s no mechanical stage, then a staged clip is used. You should move the slide manually and secure it in place with a staged clip.

Aperture

If you look at the microscope, you will notice that there is a hole in the stage where the light reaches the stage.

Illuminator

It is the source of light for the microscope. It is situated at the base of the microscope. The majority of compound microscopes use a low voltage halogen bulb.

Condenser

Its main function is to collect and focus the light from the light source (illuminator) on to the specimen. It is found under the stage adjacent to the iris diaphragm.

Iris diaphragm

Its main function is to control the amount of light that reaches the specimen. It is strategically located at the top of the condenser and just below the stage.

Condenser focus knob

The function of the condenser focus knob is to move the condenser in upward or downward motion so as to control the amount of light that reaches the specimen. (5, 7, 8, 9, and 10)

For school student


(Right click for print out)

 (Right click for print out)

References

  1. https://www.microscope.com/compound-microscope-parts
  2. https://www.microscopemaster.com/parts-of-a-compound-microscope.html
  3. https://courses.lumenlearning.com/ap1x94x1/chapter/the-parts-of-a-compound-microscope-and-how-to-handle-them-correctly/
  4. https://byjus.com/biology/study-of-the-parts-of-a-compound-microscope/
  5. http://www.biologydiscussion.com/botany/practicals-botany/parts-of-compound-microscope-botany/54527
  6. https://www.amscope.com/microscope-parts-and-functions/
  7. https://www.slideshare.net/nairamode/parts-and-functions-of-a-compound-microscope-14355822
  8. http://www.learningaboutelectronics.com/Articles/Compound-microscope-and-its-parts.php
  9. http://www.microbehunter.com/parts-of-a-compound-microscope/
  10. https://www.edutrade.co.za/blog/key-parts-of-a-compund-microscope-and-how-they-function.html