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The cornea is the transparent front part of the eye that covers the iris, pupil, and anterior chamber. Along with the anterior chamber and lens, the cornea refracts light, accounting for approximately two-thirds of the eye's total optical power. [1] [2] In humans, the refractive power of the cornea is approximately 43 dioptres. [3]
Thermally processed material is usually totally amorphous, [7] and as a result is highly transparent to visible light, with better light transmission than many kinds of glass. Polycarbonate has a glass transition temperature of about 147 °C (297 °F), [ 8 ] so it softens gradually above this point and flows above about 155 °C (311 °F). [ 9 ]
Name Image Description Aluminium tape Thin aluminum foil, coated on one side with a heat-resistant adhesive. The side coated with adhesive is prevented from sticking together with wax paper.
Polystyrene is naturally transparent, but can be colored with colorants. Uses include protective packaging (such as packing peanuts and optical disc jewel cases), containers, lids, bottles, trays, tumblers, disposable cutlery, [6] in the making of models, and as an alternative material for phonograph records. [8]
Aluminium oxynitride (marketed under the name ALON by Surmet Corporation [3]) is a transparent ceramic composed of aluminium, oxygen and nitrogen.Aluminium oxynitride is optically transparent (≥80% for 2 mm thickness) in the near-ultraviolet, visible, and mid-wave-infrared regions of the electromagnetic spectrum.
Transparent electrodes (7 P) W. Water (43 C, 158 P) Pages in category "Transparent materials" The following 45 pages are in this category, out of 45 total.
“Brat,” another word that has taken on new meaning in 2024, was named Collins Dictionary’s word of 2024 for being one of the most talked about words on and offline. For more CNN news and ...
For instance, some kinds of glass, while transparent in the visual range, are largely opaque to ultraviolet light. More extreme frequency-dependence is visible in the absorption lines of cold gases. Opacity can be quantified in many ways; for example, see the article mathematical descriptions of opacity.