A optical microscope is an optical device consisting of one lens or several lenses. It is a sign that people have entered the atomic age. It is an instrument used to magnify tiny objects into something that the human eye can see. Just as we use a magnifying glass to look at the ants when the sense of surprise, optical microscope to bring us is this magnification of countless times, only its magnification is higher, so that we can see more naked eye can not touch the tiny details.
In school, the microscope that lets us observe cells, bacteria, microorganisms, etc. in biology class is an optical microscope. Through it, we can clearly see the shape and structure of cells, just like walking into a marvellous microcosm. Here, we can find the cell nucleus, which is the cell's 'brain', in control of the cell's life activities; there are mitochondria, they are the cell's 'energy factory', providing a constant flow of energy for the cell; there are also chloroplasts, in plant cells, they are the 'photosynthesis'. In the plant cells, they are 'photosynthesis of small hands', the sunlight into energy.
The electron microscope can be said to be the 'upgraded version' of the optical microscope, with an electron beam instead of a light beam imaging, observation of fine structure of the electronic instruments. So the electron microscope can provide higher resolution and magnification than the optical microscope, can reach tens of thousands of times or even higher, like a small cell into a large room, so that we can more carefully observe the internal structure and details of the cell.
Optical microscopes are simple to operate and affordable, suitable for daily observation and preliminary scientific research; while electron microscopes have higher resolution and magnification, allowing us to explore the microscopic world in greater depth, but are expensive and complicated to operate. The types of microscopes are complicated, there are hospital microscope, optical instruments microscope, high resolution optical microscope and so on, just choose according to your own needs.
