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Corrective lens. A corrective lens is a transmissive optical device that is worn on the eye to improve visual perception. The most common use is to treat refractive errors: myopia, hypermetropia, astigmatism, and presbyopia. Glasses or "spectacles" are worn on the face a short distance in front of the eye.
Abbe number. In optics and lens design, the Abbe number, also known as the V-number or constringence of a transparent material, is an approximate measure of the material's dispersion (change of refractive index versus wavelength), with high values of V indicating low dispersion. It is named after Ernst Abbe (1840–1905), the German physicist ...
AbeBooks ( / ˈeɪb.bʊks / AYB-buuks[ 1]) is an e-commerce global online marketplace with seven websites that offer books, fine art, and collectables from sellers in over 50 countries. Launched in 1996, it specialises in used, rare and out-of-print books. AbeBooks has been a subsidiary of Amazon since 2008.
Rory is the only daughter of Lorelai Gilmore, and the first-born daughter of Christopher Hayden. She was born October 8, 1984, in Hartford, Connecticut, at 4:03 am. Every year at that exact time, Lorelai wakes Rory up to tell her the story of her birth. Because Lorelai gave birth to Rory when she was only sixteen, the two are more like friends ...
Eyeglass prescription. Using a phoropter to determine a prescription for eyeglasses. An eyeglass prescription is an order written by an eyewear prescriber, such as an optometrist, that specifies the value of all parameters the prescriber has deemed necessary to construct and/or dispense corrective lenses appropriate for a patient.
The following are some of the more popular books from the Rory Gilmore Reading Challenge, according to #BookTok and beyond. (Fair warning for those who haven’t finished the series: There are ...
In optics, the Abbe sine condition is a condition that must be fulfilled by a lens or other optical system in order for it to produce sharp images of off-axis as well as on-axis objects. It was formulated by Ernst Abbe in the context of microscopes. [ 1] The Abbe sine condition says that. the sine of the object-space angle should be ...
Noli Me Tángere (Latin for "Touch Me Not") is a novel by Filipino writer and activist José Rizal and was published during the Spanish colonial period of the Philippines.It explores inequities in law and practice in terms of the treatment by the ruling government and the Spanish Catholic friars of the resident peoples in the late 19th century.