How to make a telescope
Telescopes are greatly used to view the distant
objects in a closer view. This
will
help to view even that objects that are not visible to
the human eyes. These objects can be viewed with the help
of telescopes which even help in getting a magnified
image of the astronomical objects.
These telescopes are constructed with the help of the lenses
in a special fashion to get rid of the short comings with naked
human eyes.
To understand how to construct a telescope, it
is better to know, how the basic working of a telescope
is. The telescope is basically constructed with the help
of the two lenses.
These lenses are called the objective lens and
the eyepiece. The objective lens will focus the light
from the distant objects to a focus.
This focus is nearer to the
human eyes. Then the eyepiece will help to spread this
light inside the retina. When the retina space is
increased, the image becomes clearer and gets a magnified
picture.
Thus it is clear that the essential parts of a
telescope are the two lenses. So if you are going to
construct a telescope, you have to get two apt lenses of
the needed power to focus correctly. Again, this is
dependent on the use for which you are going to construct
the telescope. This is because the purpose greatly
influences the power and quality of the lens that is
being used in the construction.
To construct the telescope, the first
requirement is two lenses. The lenses need to be
magnifying lenses. It is advisable to have a bigger lens
and a smaller one. This should be made available with a
printed paper also.
The eyepiece and the objective lens have to be
chosen from this. Here is where your knowledge on the
working of the telescope will help you
with.
One lens has to be placed in between the user and the paper.
It is wise to use the larger lens for this purpose. It is seen
that the image of the paper formed will be blurred. Now the
second lens is kept in between the eye of the user and the
first lens.
This lens will be of course the smaller one. Now
you can notice changes in the image of the paper. This is
due to the presence of the smaller
lens.
Now
you have to do the adjustments. This is done with the help of
the movements of the lenses. The smaller lens is generally
moved to get the better image. The lens can be moved forward or
backward.
The
adjustment is made with the help of an analysis of whether the
image of the paper is becoming clear. There can be seen that
the print varies. It becomes larger in size. At the same time
it looks upside down
also.
The telescope is found to be ready only when the
image is clear in the glass. You have to move the second
lens in this manner. Thus the two lenses will combine to
form the telescope. The adjustment of the lens has to be
varied till the final image is clear, that makes it clear
that the telescope is ready.
This is a simple construction of the telescope.
This telescope can be extended to various other purposes
to make a better telescope. This telescope can give a
more clear view of the objects.
These telescopes are used in various
astronomical and non-astronomical areas. They all work
with the help of the adjustment of the lenses and this is
the basic construction of the
telescope.
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