The image was taken using a 3 inch
refractor equipped with a colour CCD camera.
Görüntü renkli CCD kamera ile donatılmış bir 3 inç refraktör kullanılarak alınmıştır.
Kaynak: gulf-times.comA refracting or
refractor telescope is a type of optical telescope that uses a lens as its objective to form an image (also referred to
Kaynak: Refracting telescopeGreat
refractor refers to a large telescope with a lens, usually the largest
refractor at an observatory with an equatorial mount.
Kaynak: Great refractorAn autorefractor or automated
refractor is a computer-controlled machine used during an eye examination to provide an objective
Kaynak: AutorefractorThis is the largest refracting telescope used for scientific research (a larger demonstration
refractor, the Great Paris Exhibition
Kaynak: Yerkes ObservatorySometimes a retinoscope or an automated
refractor is used to provide initial settings for the phoropter. Phoropters can also measure
Kaynak: PhoropterUnnamed Telescope | 8-inch Clark
refractor | Boswell Observatory is located at Doane College in Crete, Nebraska . Built in 1883, it was
Kaynak: Boswell ObservatoryThe Galileoscope is a small mass-produced
refractor telescope , designed with the intention of increasing public interest in astronomy and
Kaynak: GalileoscopeOne of his finest achievements was the construction of the 25 inch 'Newall'
refractor for Robert Stirling Newall ; sadly, Thomas died
Kaynak: Thomas Cooke (machinist)the 36 | in | mm | sing on objective for the
refractor at Lick Observatory was made in 1887, and the 40 | in | mm | sing on lens for the
Kaynak: Alvan Clark & Sons