The word telescope now refers to a wide range of instruments capable of detecting different regions of the electromagnetic spectrum, and in some cases other types of detectors. Click the answer to find similar crossword clues. Enter the length or pattern for better results. The Crossword Solver finds answers to classic crosswords and cryptic crossword puzzles. In the 20th century, many new types of telescopes were invented, including radio telescopes in the 1930s and infrared telescopes in the 1960s. The Crossword Solver found 30 answers to 'a type of telescope that uses optical lenses instead of mirrors (9)', 9 letters crossword clue. * The reflecting telescope, which uses mirrors to collect and focus light, was invented within a few decades of the first refracting telescope. They found use in both terrestrial applications and astronomy. Which devices optical telescope not affected by seeing Hubble Space. ![]() ![]() ![]() The first known practical telescopes were refracting telescopes invented in the Netherlands at the beginning of the 17th century, by using glass lenses. The largest telescope of this kind is 1 m in diameter refractor. Below are possible answers for the crossword clue. Telescopes are optical instruments that make distant objects appear magnified by using an arrangement of lenses or curved mirrors and lenses, or various devices used to observe distant objects by their emission, absorption, or reflection of electromagnetic radiation. There are 3 types of telescope: refractors, reflectors as well as catadioptric or substance telescopes.
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