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The Carl Zeiss AG & Varilux lenses were the first PAL of modern design. Bernard Maitenaz, patented Varilux in 1953, and the product was introduced in 1959 by Société des Lunetiers (now Essilor). The first Varilux lenses' surface structure was however still close to a bifocal lens, with an upper, aberration-free half of the surface for far ...
Pages in category "Zeiss lenses" The following 24 pages are in this category, out of 24 total. This list may not reflect recent changes. * Carl Zeiss AG; 0–9.
This is for companies who exclusively or predominantly create optical lenses for still and film photography. Subcategories This category has the following 10 subcategories, out of 10 total.
Laser Blended Vision is suitable in general for anyone with presbyopia who is also a candidate for corneal laser eye surgery; the range of preoperative prescriptions that can be treated varies, but results have been published for laser blended vision using the Carl Zeiss Meditec MEL80 excimer laser for myopia (short-sightedness) up to -8.50D ...
People who have a multifocal intraocular lens after their cataract is removed may be less likely to need additional glasses compared with people who have standard monofocal lenses. [2] People receiving multifocal lenses may experience more visual problems, such as glare or haloes (rings around lights), than with monofocal lenses. [2]
Zeiss Protar (Rudolph, 1890). The first Anastigmat was designed by Paul Rudolph for the German firm Carl Zeiss AG in 1890 and marketed as the Protar; [1]: 65–66(§103) it consisted of four elements in two groups, as an asymmetric arrangement of two cemented achromatic lens doublets and was improved to a five-element, two-group design in 1891, substituting a cemented triplet for the rear group.