Building a better refractor The spyglass-turned-telescope had limitations, some of which Galileo was able to design around. To reduce distortions such as elongations and blurriness caused by the ...

The first telescopes used lenses, known as refracting telescopes ... "Once we optimized the design of the lens' microstructures, the manufacturing process involved required very stringent process ...

The original instrument to occupy the 25-foot diameter dome was the 10.5-inch Bausch refracting telescope (f/15.5) installed in the brand new observatory in 1953. Bausch & Lomb Company gave the ...

The design prioritizes stability and ease of ... more impressive views than a 4-inch or 5-inch (100-130mm) refracting telescope, especially under dark/steady skies. Aperture sizes in more modern ...

The Beaverlab Finder TW2 is not a smart telescope, but its design makes it unique. This 82mm/3.2-inch refractor is one of a kind in that a lightweight plastic camera can be attached to it in place ...

Chinese scientists are working to set up the world's largest refracting telescope in Tibet Autonomous Region for observing stars and planets. Deputy Director of the regional department of science and ...