Refracting telescope
Refractors were the earliest type of optical telescope. The first practical refracting telescopes appeared in the Netherlands about 1608, and were credited to three individuals, Hans Lippershey and Zacharias Janssen, spectacle-makers in Middelburg, and Jacob Metius of Alkmaar. Galileo Galilei, happening to be in Venice in about the month of May 1609, heard of the invention and constructed a version of his own. Galileo then communicated the details of his invention to the public, and presented the instrument itself to the Doge Leonardo Donato, sitting in full council.
Poland
In the 19th century, throughout partitioned Poland, numerous amateur inventors, such as Kazimierz Prószyński, were eager to construct a film projector. In 1894, Prószyński was successful in creating a Pleograph, one of the first cameras in the world. The invention, which took photographs and projected pictures, was built before the Lumière brothers lodged their patent. He also patented an Aeroscope, the first successful hand-held operated film camera. In 1897, Jan Szczepanik, obtained a British patent for his Telectroscope. This prototype of television could easily transmit image and sound, thus allowing a live remote view. Following the invention of appropriate apparatus and technological development in the upcoming years, his then-impossible concept became reality.