Ministry of higher education, science and innovations fergana state university department of exact and natural sciences

REPUBLIC OF UZBEKISTAN
MINISTRY OF HIGHER EDUCATION, SCIENCE AND INNOVATIONS


FERGANA STATE UNIVERSITY
DEPARTMENT OF EXACT AND NATURAL SCIENCES


Biology course 3rd year 20.51 - group student
from "English" by Ruzaliyeva Mokhira


INDEPENDENT WORK

Topic: Mikroscope


Passed: __________ _________________
Accepted: __________ ________________
2022-2023 academic year
Plan:

1. 
   History
   
2. 
   Rise of modern light microscopes
   
3. 
   Electron microscopes
   
4. 
   Scanning probe microscopes
   
5. 
   Electron microscope
   
6. 
   References
   

Microscope
A microscope (from Ancient Greek μικρός (mikrós) 'small', and σκοπέω (skopéō) 'to look (at); examine, inspect') is a laboratory instrument used to examine objects that are too small to be seen by the naked eye. Microscopy is the science of investigating small objects and structures using a microscope. Microscopic means being invisible to the eye unless aided by a microscope.
There are many types of microscopes, and they may be grouped in different ways. One way is to describe the method an instrument uses to interact with a sample and produce images, either by sending a beam of light or electrons through a sample in its optical path, by detecting photon emissions from a sample, or by scanning across and a short distance from the surface of a sample using a probe. The most common microscope (and the first to be invented) is the optical microscope, which uses lenses to refract visible light that passed through a thinly sectioned sample to produce an observable image. Other major types of microscopes are the fluorescence microscope, electron microscope (both the transmission electron microscope and the scanning electron microscope) and various types of scanning probe microscopes.^[1]
History
Further information: Timeline of microscope technology and Optical microscope § History

18th-century microscopes from the Musée des Arts et Métiers, Paris
Although objects resembling lenses date back 4,000 years and there are Greek accounts of the optical properties of water-filled spheres (5th century BC) followed by many centuries of writings on optics, the earliest known use of simple microscopes (magnifying glasses) dates back to the widespread use of lenses in eyeglasses in the 13th century.^[2][3][4] The earliest known examples of compound microscopes, which combine an objective lens near the specimen with an eyepiece to view a real image, appeared in Europe around 1620.^[5] The inventor is unknown, even though many claims have been made over the years. Several revolve around the spectacle-making centers in the Netherlands, including claims it was invented in 1590 by Zacharias Janssen (claim made by his son) or Zacharias' father, Hans Martens, or both,^[6][7] claims it was invented by their neighbor and rival spectacle maker, Hans Lippershey (who applied for the first telescope patent in 1608),^[8] and claims it was invented by expatriate Cornelis Drebbel, who was noted to have a version in London in 1619.^[9][10] Galileo Galilei (also sometimes cited as compound microscope inventor) seems to have found after 1610 that he could close focus his telescope to view small objects and, after seeing a compound microscope built by Drebbel exhibited in Rome in 1624, built his own improved version.^[11][12][13] Giovanni Faber coined the name microscope for the compound microscope Galileo submitted to the Accademia dei Lincei in 1625^[14] (Galileo had called it the occhiolino 'little eye').