Term Paper of BTY(205)
Topic:- Different types of Microscopes
Annapurna S. Agasthya
I am heartily thankful to my teacher, Annapurna S. Agasthya who gave me such a wonderful topic and whose encouragement, guidance and support from the initial to the final level enabled me to develop an understanding of the subject.
I am also thankful to my parents and my elder brother who suuports and encourage me and give me some useful ideas.
Lastly, I offer my regards and blessings to all of my friends who supported me in any respect during the completion of this term paper.
Inntroduction of Microscope
Types of Microscope
Scanning Electron Microscope (SEM)
Transmission Electron Microscope (TEM)15
"Micro" refers to tiny, "scope" refers to view or look at.
Microscopes are tools used to enlarge images of small objects so as they can be studied.
Since its invention, the microscope has been a valuable tool in the development of scientific theory.
The generally used microscope is compound light microscope which is containing two lenses, which magnifies, and a variety of knobs to resolve (focus) the picture. Because it uses more than one lens, it is sometimes called the compound microscope in addition to being referred to as being a light microscope.
The first microscope to be developed was the optical microscope, although the original inventor is not easy to identify. An early microscope was made in 1590 in Middelburg, Netherlands. Two eyeglass makers are variously given credit: Hans Lippershey (who developed an early telescope) and Hans Janssen. Giovanni Faber coined the name microscope for Galileo Galilei's compound microscope in 1625 .(Galileo had called it the "occhiolino" or "little eye").
Function of Microscope-
The function of any microscope is to enhance resolution. The microscope is used to create an enlarged view of an object such that we can observe details not otherwise possible with the human eye. Because of the enlargement, resolution is often confused with magnification, which refers to the size of an image.
In general, the greater the magnification, the greater the resolution, but this is not always true. There are several practical limitations of lens design which can result in increased magnification without increased resolution.
TYPES OF MICROSCOPE
There are different types of microscopes are exist:-
1. Optical Microscopes
2. Dissecting Microscopes
3. Inverted Microscopes
4. Petographic Microscopes
5. Pocket Microscope
6. Scanning Electron Microscope (SEM)
7. Transmission Electron Microscope (TEM)
1. Optical Microscope:-
* The optical microscope, often referred to as the "light microscope", is a type of microscope which uses visible light and a system of lenses to magnify images of small samples.
* The optical microscope has one or two lenses that work to enlarge and enhance images placed between the lower-most lens and the light source.
* Optical microscopes are the oldest design of microscope and were designed around 1600.
* Basic optical microscopes can be very simple, although there are many complex designs which aim to improve resolution and sample contrast.
* There are...
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