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Periscopes permit view outside of the vehicle without needing to cut these weaker vision openings in the front and side armour, better protecting the vehicle and occupants. A protectoscope is a related periscopic vision device designed to provide a window in armoured plate, similar to a direct vision slit.
Edme Hippolyte Marié-Davy (28 April 1820 – 26 July 1893) was a French chemist and inventor during the 19th century. He was born in Clamecy, Nièvre.. In 1854, he invented the first naval periscope, consisting in a vertical tube with two small mirrors fixed at each end at 45°.
In 1900, Grubb invented the reflector or "reflex" sight, [5] [6] a non-magnifying optical sight that uses a collimator to allow the viewer looking through the sight to see an illuminated image of a reticle or other pattern in front of them that stays in alignment with the device the sight is attached to (parallax free).
The Cameron-Yaggi was invented in 1914, but development of the model came to an end after the Armistice in November 1918. [24] The Cameron-Yaggi mounting required no permanent alteration to the fitted rifle, [25] and included a mechanism to operate the rifle's bolt. The aiming periscope also functioned as a 4-power telescopic sight. [26]
The 14 meters (46 feet) craft was designed for a crew of two, could dive to 30 metres (98 feet), and demonstrated dives of two hours. On the surface, it ran on a steam engine, but underwater such an engine would quickly consume the submarine's oxygen. To solve this problem, Monturiol invented an air-independent propulsion system. As the air ...
In 1905, Robertson's book The Submarine Destroyer was published. It described a submarine that used a device known as a periscope.Despite Robertson's later claims that he had "invented" a prototype periscope himself (and was refused a patent), Simon Lake and Harold Grubb had perfected the model used by the U.S. Navy by 1902, three years before Robertson's "prescient" novel.
Gundlach periscope. The Gundlach Periscope, usually known under its British designation as Vickers Tank Periscope MK.IV, was a revolutionary invention by Polish engineer Rudolf Gundlach, manufactured for Polish 7TP tanks from the end of 1935 and patented in 1936 as the Peryskop obrotowy Gundlacha.
Antenna masts and antenna-equipped periscopes can be raised to obtain navigational signals but in areas of heavy surveillance, only for a few seconds or minutes; [1] current radar technology can detect even a slender periscope while submarine shadows may be plainly visible from the air.