Types of Biological Microscope used in the field of Biology
Microscopes of toady offer the high quality work, they are cost effective and provide optimum performance per price for the clinics, for medical technicians, for practitioners, for hospitals, universities, leading biological research labs & various research companies across the world. Some of the good performance microscopes in the biological field includes inverted, simple,polarizing, fluorescent etc. let use discuss each one of them in brief:
First one on the list is the simple microscope, it consists of a biconvex lens which can be moved up & down by the adjustable screw to arrange the sharpness of the image. An object is placed near the platform &usually a beam of light is to be focused on an object with the help of a concave mirror.
A convex lens is used to see the image of a tiny object by magnifying it. The image produced is virtual in nature, erect and on the same side as the object.
The compound Microscope
It has the two set of convex lens, the shorter aperture lens with shorter focal length is called objective lens and another one of large aperture & focal length,facing the eye called as the eyepiece.Both of these are placed coaxially to each other.
The object to be magnified is placed between the center of curvature & focus of the objective lens. The image produced acts as the object for eyepiece which in turn act as the simple microscope to produce an erect, magnified and virtual image.
The Electron Microscope:
It is developed by the M. knoll at Germany during 1932. It has the supplying source,a beam of the electron, a condenser lens for the concentration, a specimen for displacing the specimen so that electron beam can be transmitted, projector lens, objective lens and a fluorescent screen for observing the final image. If you want to make a permanent record of the image then you can use a photographic plate instead of a fluorescent screen.
It is an optical microscope in which fluorescence & phosphorescence is used along with the normal reflection & absorption. This is effective microscope to study the properties of organic & inorganic substances. They used the high powered light waves to provide an effect of perfect viewing options that are not available with a traditional microscope.
When the light of a particular wavelength irradiates definite specimens they can emit energy seen as visible light.High-intensity light source like mercury & xenon arc lamps is used to generate a huge amount of excitation energy. Here is the goal is to maximize the intensity of emitted fluorescence with high contrast