The microscope is considered as one of the most important tools used in the fields of biology and chemistry. It is an instrument that allows a person to magnify a specific object to observe and look at it in closer and better detail. Microscopes are available in different types to allow different magnification levels and product different kinds of images. The most advanced types of microscopes also have the ability to see atoms.
What is a Microscope?
According to microscopeclub.com a microscope is a type of instrument used for magnifying small objects. There are microscopes that can also be used for observing objects at cellular level. They help scientists see a cell’s shape, it mitochondria, its nuclear, and the rest of the organelles.
Even though today’s modern microscopes feature many different parts, the lenses remain to be the most important ones. It is through the lenses of the microscope that an object’s image can be observed in detail and magnified.
Simple light microscopes can manipulate the way light enters the eye with the use of a convex lens with the two sides of the lens both curved outwards. The moment light is reflected off the object that is being observed under a microscope then passes through its lens, this will bend towards the eye. It makes an object appear larger than its actual size.
The Microscope Through the Years
Throughout the course of the history of the microscope, technological innovations and advancements have made it easier and simpler to use the microscope and have result to significant improvements in the quality of images produced.
Compound microscopes that are made up of at least two lenses were invented by Dutch spectacle-makers Hans and Zacharias Jansen in 1590. Among the earliest microscopes were also the creations of Antoine Van Leeuwenhoek, another Dutchman. The microscopes that he made feature a tiny glass ball set placed inside a frame made from metal. Leeuwenhoek became famous for his use of the microscope to observe single-celled microorganisms living in freshwater that he named “animalcules.”
Even though some of the older microscopes feature only a single lens, today’s microscopes use several lenses for enlarging an image. Two sets of lenses can be found in the compound microscope and dissecting microscope or also known as stereo microscope.
These two microscopes both use objective lens that is nearer the object as well as an eyepiece or the lens where you look through. This eyepiece lens magnifies the object to make it look ten times its real size while the objective lens’ magnification can vary.
A compound microscope can feature four objective lenses with different magnifications, with the microscope adjustable to select the magnification that is most suitable for the needs of the viewer. The dissecting microscope has a lower magnification compared to the compound microscope yet the image it produces is three-dimensional. It makes a dissecting microscope a good tool to view objects that are bigger than several cells but are too tiny to see in good detail using the human eye. Compound microscopes are often used to observe objects at cellular level.