A refracting telescope (also called a refractor) is a type of optical telescope that uses a lens as its objective to form an image (also referred to a dioptric telescope). The refracting telescope design was originally used in spyglasses and astronomical telescopes but is also used for long-focus camera lenses .

quality short refractors → Refractors are still used in astronomy for wide field small diameter systems, and the same technology is used to correct for aberrations in wide field reflecting telescopes.

2022年2月16日 · Refractor telescopes are the best known historically since Galileo Galilei used the single element refractor for his study of the moon, the planet Jupiter, and solar observations. They are commercially available from 50mm diameter to 150mm (2.4 to 6 inches).

2021年8月27日 · What is a Refractor Telescope? Simply put, a refractor is a type of telescope that uses a lens to bend (or refract) light to a point. The point where the light path intersects is called the “focal point”, and is where your eyepiece, camera, or diagonal would go.

In its simplest form, a telescope consists of 2 optical elements—an objective and an eyepiece separated by the sum of their focal lengths. These may be either refractive or reflective elements (lenses or mirrors, respectively). While the objective always has positive power, the eyepiece may have either positive or negative power.

2020年5月12日 · A refracting telescope, or a refractor, uses a combination of lenses to produce images of distant objects, e.g., stars and planets that would otherwise not be visible with the human eye. A simple refracting telescope is made up of two lenses, which are called the objective and the eyepiece.

2014年1月1日 · This paper on th e design and construction of an optical refracting telescope which is aimed at producing a low cost and portable telescope with less or no aberration effects using the...

There are three basic types of optical telescopes – Refractor, Newtonian reflector and Catadioptric. All of these telescopes are designed to collect light and bring it to a focus point so that it can be magnified by an eyepiece, however each design does it in a different manner.