Show Microscopes are optical devices that are used to see very small objects in the laboratory. Light microscopes, electron microscopes, compound microscopes, stereo microscopes, and Digital microscopes are 5 different types of microscopes. If you are thinking of acquiring one and you are lost, without knowing where to start, then you are in the right place. Through this detailed guide, we will show you everything you need to know and look at when looking for one. This post includes:
Who invented the microscope?The invention of the microscope was a great advance for microbiology, being invented by Zacharias Jassen in 1590, with the help of his father who was a manufacturer of glasses. He began by conducting experiments in the workshop by placing two lenses at both ends of a tube, with which he noticed that he could visualize with the objects considerably magnified in relation to what he could with only one so that microscopes still have in general terms the structure of the first created. How does a microscope work?Microscope technology has evolved a lot compared to its creation, so depending on the type you use it may work in different ways, however, we will show you how they work in general terms: working with two lenses that increase the size of objects and allows it to be visible to the human eye, projecting the image directly on the retina, working by refraction similar to telescopes. Parts of microscopes It is important to know the parts of the microscope since it is the first thing that will help us to know how to use it and how it works in its entirety. 1. Base or footThis is what provides stability and provides balance, with adequate weight, in addition to housing the light source and serves as a support for the column or arm, they are usually Y or rectangular. 2. StageIt is the horizontal support in which the object to be observed is placed, it has in the center a circular hole through which the ray of light passes, it is usually square in shape and allows you to view the object in a concrete way because it is stable and you can move it to visualize what you need. 3. ArmIt is a C-shaped piece that is attached to the base with a hinge that allows it to be tilted as needed, which in turn this adjustment allows the increase or decrease of light capture, also supports the tube at the top. 4. TweezersThere are two of them and they are located on the stage with the function it fulfills is to hold the object to be observed from two sides, giving it the comfort and stability to observe precisely. 5. Micrometer screwIt provides an almost imperceptible fine adjustment that generates the sliding of the tube or the stage to achieve more clarity of observation, which also has a drum to measure the thickness. With the movement of this screw, the microscope tube can be raised and lowered, sliding vertically. These screw movements are long compared to the micrometer, which allows a quick adjustment of the observation. 7. RevolverIt is attached to the tube and allows the exchange of objectives only by rotating it, being a semi-sphere that has a series of rings where the objectives are going to be screwed, when rotating the objectives they are observed through the tube and this works to change the focus of view. 8. TubeIt is the one that supports the optical part of the device, being a hollow cylinder that has a diaphragm that prevents reflections and is black on the inside. In it you can carry out all the observation and it is that the other components are functional for this.
In this case, we show you the parts that play a fundamental role for observation through the microscope and are the optical parts. 1. SpotlightIt is the one that generates the beam of light that illuminates the sample, being first directed to a mirror that then reflects it to the object, its position will change according to the type of transmitted or reflected illumination it offers. 2. CondenserIt is the piece in charge of concentrating all the light rays coming from the focus, containing them in different lenses, to transmit the light in a parallel or convergent way, which causes it to be projected on the sample, 3. DiaphragmIt is in charge of regulating the amount of light incident to the sample, which makes the observation contrast of the object studied vary, which varies depending on the type of sample. It is usually under the platen. 4. ObjectiveThe objectives are a set of lenses that are close to the sample, having a short viewing distance, producing the first magnification stage, being mounted on the revolver allowing the choice of the required magnification. 5. EyepieceThis part of the mechanism provides the second stage of magnification of the image that has been magnified by the objective, being through this that the user can observe the sample. 6. Optical prismIt is the one that is in charge of correcting the direction of the light, being essential in binocular microscopes where the prism divides the beam of light that comes from the objective so that it is directed to the two eyepieces. List of Types of Microscopes
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