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In 1608, the Dutch Middelburg optician Hans Lippershey built the world's first telescope. Once, two children were playing with a few lenses in front of Li Boer's shop. They looked at the weathercock on the church in the distance through the front and rear lenses, and the two were elated. Li Boser picked up two lenses and took a look. The weathercock in the distance was magnified a lot. Li Boer raced back to the store and put two lenses in a tube. After many experiments, Hans Li Boer invented the telescope. In 1608, he applied for a patent for the telescope he made, and in compliance with the requirements of the authorities, he built a binoculars. It is said that dozens of telescope opticians in the town claimed to have invented the telescope.
At the same time, the German astronomer Kepler also began to study telescopes. He proposed another astronomical telescope in "Refractive Optics". This telescope consists of two convex lenses. Unlike Galileo's telescope, it has a wider field of view than Galileo's telescope. . But Kepler did not make the telescope he introduced. Scheiner made this telescope for the first time between 1613 and 1617. He also made a telescope with a third convex lens according to Kepler's suggestion, turning the inverted image of the telescope made of two convex lenses into a positive image. . Scheiner made 8 telescopes, one by one to observe the sun, no matter which one can see the sunspots of the same shape. Therefore, he dispelled the illusion that many people thought that the sunspots might be caused by the dust on the lens, and proved that the sunspots are indeed the observed real existence. While observing the sun, Scheina installed special light-shielding glass, but Galileo did not add this protective device. As a result, he hurt his eyes and was almost blind. In order to reduce the chromatic aberration of the refracting telescope, Huygens in the Netherlands built a telescope with a tube length of nearly 6 meters in 1665 to explore the halo of Saturn, and later built a telescope with a length of nearly 41 meters.
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We (Alice) are a professional manufacturer of telescope nameplates. We have 21 years of experience in furniture label making. We can produce zinc alloy, aluminum, stainless steel, copper, brass, pvc and other different labels.
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Alice has dedicated to precise product since it was established in 1998, especially focus on furniture and electronic appliances field as a tendency.
