The frequencies of the spectrum which are not absorbed are either reflected or transmitted for our physical observation. They absorb certain portions of the visible spectrum while reflecting others. Many substances are selective in their absorption of white light frequencies. Many such substances have a chemical composition which includes what are referred to as absorption centers. Materials which do not transmit light are called opaque. Absence of structural defects (voids, cracks, etc.) and molecular structure of most liquids are mostly responsible for excellent optical transmission. Many liquids and aqueous solutions are highly transparent. Some materials, such as plate glass and clean water, transmit much of the light that falls on them and reflect little of it such materials are called optically transparent. Photons interact with an object by some combination of reflection, absorption and transmission. These interactions depend on the wavelength of the light and the nature of the material. When light encounters a material, it can interact with it in several different ways. The opposite property of translucency is opacity. Transparent materials appear clear, with the overall appearance of one color, or any combination leading up to a brilliant spectrum of every color. A transparent material is made up of components with a uniform index of refraction. In other words, a translucent material is made up of components with different indices of refraction. Translucency (also called translucence or translucidity) allows light to pass through, but does not necessarily (again, on the macroscopic scale) follow Snell's law the photons can be scattered at either of the two interfaces, or internally, where there is a change in index of refraction. On a macroscopic scale (one in which the dimensions are much larger than the wavelengths of the photons in question), the photons can be said to follow Snell's law. In the field of optics, transparency (also called pellucidity or diaphaneity) is the physical property of allowing light to pass through the material without appreciable scattering of light. The picks ahead are either from brands that have done well in our tests or are newer styles with unique features and rave reviews from consumers.Dichroic filters are created using optically transparent materials. In recent years, we reviewed over 1,400 ratings from our Lab and consumer tests. We've even measured our testers to see if compressive bathing suits actually take inches off their waists, hips and tummies. Besides testing the durability to see whether fabric easily gets damaged from rough surfaces, we also have real testers give feedback on fit and slimming capabilities. The fiber scientists in the Good Housekeeping Institute Textiles Lab test one-piece swimsuits and two-piece bathing suits to find the ones that live up to their slimming promises. Not only should a tummy control swimsuit help you to look and feel great, but most importantly, it should be comfortable to wear, and it should be able to hold up to regular use swim season after swim season. If you feel more confident in a style with built-in compression or a slimming design, there are tons of styles to choose from. We updated this article in February 2023 to add new swimsuits and expert input, and ensure all products selected by the Good Housekeeping Institute Textiles Lab for summer 2023 were in stock and correctly priced.Įvery body is a beach body, but there's no shame in preferring the shaping effect of a tummy control swimsuit over a basic bathing suit.
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