One episode, two lenses
نویسندگان
چکیده
منابع مشابه
Near-field lenses in two dimensions
It has been shown that a slab of materials with refractive index n = −1 behaves like a perfect lens focusing all light to an exact electromagnetic copy of an object. The original lens is limited to producing images the same size as the object, but here we generalize the concept so that images can be magnified. For two-dimensional systems, over distances much shorter than the free space waveleng...
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BACKGROUND Silicon hydrogel bandage contact lenses are used to enhance epithelial healing, control surface-generated pain, and prevent epithelial erosions after refractive surgery. Considering the importance of faster reepithelialization in preventing complications of photorefractive keratectomy (PRK) and the fact that the features and specifications of these commercially-available lenses are d...
متن کاملcomparative study of two silicone hydrogel contact lenses used as bandage contact lenses after photorefractive keratectomy
background: silicon hydrogel bandage contact lenses are used to enhance epithelial healing, control surface-generated pain, and prevent epithelial erosions after refractive surgery. considering the importance of faster reepithelialization in preventing complications of photorefractive keratectomy (prk) and the fact that the features and specifications of these commercially-available lenses are ...
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ژورنال
عنوان ژورنال: Educational Studies in Mathematics
سال: 2012
ISSN: 0013-1954,1573-0816
DOI: 10.1007/s10649-012-9416-8