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Notes on Hans Lippershey's unsuccessful telescope patent in 1608. The first record of a telescope comes from the Netherlands in 1608. It is in a patent filed by Middelburg spectacle-maker Hans Lippershey with the States General of the Netherlands on 2 October 1608 for his instrument "for seeing things far away as if they were nearby." [12] A few weeks later another Dutch instrument-maker ...
Galilean type Soviet-made miniature 2.5 × 17.5 monocular Diagram of a monocular using a Schmidt-Pechan prism: 1 – Objective lens 2 – Schmidt-Pechan prism 3 – Eyepiece. A monocular is a compact refracting telescope used to magnify images of distant objects, typically using an optical prism to ensure an erect image, instead of using relay lenses like most telescopic sights.
Spyglass may refer to: Another term for a hand-held refracting telescope for terrestrial observation A monocular, a compact refractor "Spy Glass", a recurring sketch on Saturday Night Live; Spyglass Media Group, entertainment company formerly known as Spyglass Entertainment; Spyglass Board Games, a collection of board games on Xbox Live Arcade
Hans Lipperhey [a] (c. 1570 – buried 29 September 1619), also known as Johann Lippershey or simply Lippershey, [b] was a German-Dutch spectacle-maker.He is commonly associated with the invention of the telescope, because he was the first one who tried to obtain a patent for it. [1]
Space telescope: instrument in space to study astronomical objects; Spectrometers: used to measure spectral components of light; Sundial: device that tells the time of day by the apparent position of the Sun in the sky; Transit instrument: small telescope used for precise astrometry
1867 illustration of a crow's nest on a traditional ship with a lookout holding up a telescope Crow's nest on a tugboat.. A crow's nest is a structure in the upper part of the main mast of a ship or a structure that is used as a lookout point.
The telescopes included both equatorial and azimuthal models with silvered glass mirrors (10, 16, 20 cm). [3] Between 1867 and 1891 the Bardou company won numerous awards at expositions of Le Havre , Philadelphia , and Paris, including a gold medal at the Exposition Universelle in Paris in 1889 .
The Large Binocular Telescope at the Mount Graham International Observatory in Arizona uses two curved mirrors to gather light. An optical telescope gathers and focuses light mainly from the visible part of the electromagnetic spectrum, to create a magnified image for direct visual inspection, to make a photograph, or to collect data through electronic image sensors.