The nature of the objective lens of a microscope is of course with the eyepiece lens. Even so, both still have a function to complement the work of the microscope.
Both the ocular and objective lenses will help the microscope to see small objects.
Launching from the Encycopedia Britannica, the purpose of the microscope is to collect diffracted light waves and beat them until interference occurs.
As a result, the microscope will create an image of an object that is larger than its original size, so that humans can see and observe it with their eyes.
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What are the properties of the microscope’s objective lens?
You must be familiar with the microscope. In fact, you can learn this object since school because of its very important function in science.
The function of the microscope itself is to help see small objects that cannot be seen by the eye.
To be able to work properly, the telescope uses two types of lenses, namely the objective and the eyepiece.
Launching from Lumen Learning, the objective lens on a microscope is a convex lens with a shorter focal length than the eyepiece.
It has the name objective lens because this lens will be near the object or object that the microscope will examine.
With a sufficiently short focal length, it makes the objective lens to form a larger image of the object and will be the first image formed on the microscope.
So, the properties that this lens produces are the same as magnified, real, and also inverted. The images that have been captured by the objective lens will then be continued to go to the eyepiece.
In contrast to the properties of the real microscope objective lens, the ocular lens actually has the property of a virtual image. The eyepiece is also after the objective lens.
The ocular lens is also the key to the invention of the microscope for the first time in the early 1600s. The image seen in the eyepiece is the same as the image seen by the observer using a microscope.
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Objective Lens Magnification Equation
The magnification of the objective lens will always be the same when the eye is maximally accommodated or when the eye is not accommodating.
This can happen because the use of the objective lens is to form an image of the original object, not directly related to the eye of the observer.
In other words, the magnification of this objective lens is the magnification of the positive lens. Now, on a positive lens, the equation will be:
Mob = h’ob / hib = I- s’ob / sob
Mob represents the magnification of the objective lens.
s’ob means the image distance for the objective lens.
sob means the distance from the object for the objective lens.
h’ob is the height of the shadow.
hob means the height of the object.
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The properties of the microscope objective lens are different from the eyepiece lens, but they still have the same important function.
Because the objective lens will send the image of the object to the eyepiece so that it can be seen by the researcher.(R10/HR-Online)
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