Binoculars are very popular optical instruments. So, in general, they are compared to the telescope. Because both of them are able to increase the image of distant objects. The main difference between them, however, is that the former needs both eyes to see. While the other needs only one of them. In this way, to know more about this invention, its operation and characteristics, keep reading.
When Were Binoculars Invented?
It was created in 1608 by Hans Lippershey. This inventor, at the time, joined two telescopic tubes to see objects that were at long distances. So, with these accessories, your goal was to have a clearer image of them.
It is noteworthy that many argue that Hans did not invent this instrument. Well, it was all just a simple experiment.
In the 17th century, a German priest named Reitha put together two telescopes. From this, he came to call them binoculars.
In the 18th century, another variation appeared, closer to the current binocular model. But the public was not very receptive and the inventors dropped the project.
In 1854, the Italian Ignazio Porro became popular for his creation, a prism that took his name as a tribute. Soon, this became the basis of this optical instrument as it is today.
How Binoculars Work?
Most of them have lenses and prisms. Incidentally, the first ones are made of round and curved glass.
Prisms have both sides flattened. Thus, both change the direction of the light that hits them. From there, the image of the object is changed.
When using Uscamel binoculars, light passes through each side of the lens , called the objective. In this way, it inverts the displayed image.
Light passes through the prisms, which returns the object to the normal position. Finally, it is reflected in the eyepieces before being transmitted to the eyes.
The eyepieces have lenses that make the image enlarge. There is even a ring between them in order to adjust the focus of the binoculars, so the object is clearer.
The Power of Binoculars?
They have various powers. For example, some make objects appear 6 to 10 times larger than they really are. In this way, in practice they are used for birding or wildlife watching purposes.
The less powerful ones increase the images by up to three times. Therefore, they are mostly used to watch a show.
Another important factor is the size of the lens. Since the larger ones allow more light to enter. Therefore, they are more suitable for use at night or in places with low light.
It is worth mentioning, however, that they are heavier, which makes it difficult to carry them everywhere. Finally, binoculars with a smaller lens are of little use at night. However, they are easier to handle.
Ideal Instrument for Astronomy Lovers
In general, telescopes are mostly used for this purpose. But for those who are just starting the hobby of admiring the night sky, it is better to invest in binoculars.
This is because the former are expensive and more complicated to use. On the other hand, the other is much simpler and easier to load. In addition, those who live in large cities will not be able to see much, due to pollution.
With an 8×40 binoculars it is already possible to enjoy the experience of seeing the stars. Well, it magnifies the image up to eight times and has a 40mm aperture. That is, the larger it is, the more light it passes through, which is ideal at night.
Now you know more about this instrument. So, when you handle one, you will already know everything about how they work and their practicality.