Light Microscope
One of the higher end types of microscopes available is the light microscope. The light microscope employs a beam of light in order to project small objects into the lens of the microscope. These are one of the most common types of microscope that is used in biological fields of study and research.
When using a light microscope there are several different obstacles that you will need to overcome in order to get a clear and crisp projection of the object that is being magnified by the microscope. One of the most common obstacles is trying to locate a plain that can be evenly focused on by the microscope lens. Since most objects tend to be uneven and have different levels of depth, this is a very hard problem to overcome without the correct tools. If you are going to be inspecting an object that is of low to medium density, then it may be in your best interest to use a glass slide for magnifying the object. With a glass slide you are able to place the object to be magnified, within two flat glass slide pieces. If the object can be moistened without causing damage, then there is an even better way to achieve satisfactory results. You can place a few drops of water onto the object that is placed onto the glass slide, and then you can place the top portion of the glass slide directly onto the moistened specimen. By doing this you will be able to flatten the specimen that is being viewed, into a very evenly distributed plain of sight.
With a light microscope there are lots of different characteristics that can be seen when the light hits the object that is under magnification. When certain objects are illuminated from behind, they tend to show more depth and so you will be looking at things that are not usually visible without applying that type of light source.
There are two different main types of light microscopes. The first type is a mirrored projection style which uses a single or multiple set of mirrors to reflect natural light from the room onto the object that is placed onto the stage (the flat surface directly under the objective lens). With a mirrored style microscope you will need to make sure that the room that you are working in has an adequate light source in order to illuminate the specimen that is being magnified.
Another type is the self illuminated light microscope. This type of microscope has some type of bulb that is powered by electricity and then the light is projected either onto the object, or the light can be projected behind the object to create a more three dimensional view of the object.
Like any other microscope, the light microscope should be cared for in a very particular fashion. All the parts of a light microscope are very fragile and expensive. Care should be taken when unplugging the microscope from its power source. Be sure to treat the microscope as if you would any other type of fragile and expensive object.
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