Definition of Refractor. Meaning of Refractor. Synonyms of Refractor

- 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...
- In optics, the refractive index (or refraction index) of an optical medium is the ratio of the apparent speed of light in the air or vacuum to the speed...
- In physics, refraction is the redirection of a wave as it p****es from one medium to another. The redirection can be caused by the wave's change in speed...
- releases have confirmation of a Refractor on the back of the card in the form of either an R or the word 'Refractor' printed, usually, beside or beneath...
- Great refractor refers to a large telescope with a lens, usually the largest refractor at an observatory with an equatorial mount. The preeminence and...
- Refraction, in acoustics, comparable to the refraction of electromagnetic radiation, is the bending of sound propagation trajectories (rays) in inhomogeneous...
- automated refractor is a computer-controlled machine used during an eye examination to provide an objective measurement of a person's refractive error and...
- Refractive surgery is an optional eye surgery used to improve the refractive state of the eye and decrease or eliminate dependency on gl****es or contact...
- This refraction is due to the velocity of light through air decreasing (the refractive index increases) with increased density. Atmospheric refraction near...
- to more accurately determine the amount of refractive error, particularly in children An automated refractor is an instrument that is sometimes used in...