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Adjustable-focus eyeglasses. Adjustable focus eyeglasses are eyeglasses with an adjustable focal length. They compensate for refractive errors (such as presbyopia) by providing variable focusing, allowing users to adjust them for desired distance or prescription, or both. Current bifocals and progressive lenses are static, in that the user has ...
Progressive lenses are corrective lenses used in eyeglasses to correct presbyopia and other disorders of accommodation. They are characterised by a gradient of increasing lens power, added to the wearer's correction for the other refractive errors. The gradient starts at the wearer's distance prescription at the top of the lens and reaches a ...
To play the following in 3D, as well as convert over 650 existing games, [6] requires Nvidia 3D Vision Glasses with a 120 Hz monitor, or red and cyan glasses with slower monitors, Windows Vista or later, enough system memory (2GB recommended), a compatible CPU (Intel Core 2 Duo or AMD Athlon X2 or higher) and a compatible Nvidia video card ...
3-D Thunder Ceptor II. Arcade. 1986. Developed by Namco, the stereoscopic 3-D image is generated using LCD shutter glasses, which is enhanced by a fresnel lens placed between the video screen and shutter glasses, giving the impression of large 3-D images coming near the player. It was one of several stereoscopic 3-D arcade games at the time ...
Corrective lens. A pair of contact lenses, positioned with the concave side facing upward. 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.
For example, sun lenses could be easily lifted up and down while mixed with myopia lenses that always stay on. Presbyopia lenses could be also combined and easily removed from the field of view if needed without taking off glasses. These glasses often used for driver when they went through tunnels the upper frame,sunglasses and the second frame ...
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