WebJan 1, 2014 · It is a widely discussed and regularly cited theory that Viking navigators might have been able to locate the position of the sun occluded by clouds or below the horizon with a mysterious birefringent or dichroic crystal, the sunstone, on the basis of the pattern of skylight polarisation. Webdichroic crystal: A birefringent crystal which absorbs the ordinary and extraordinary rays unequally. Natural light passing through a plate of a dichroic material becomes partially …

Maltese Cross Phenomenon Photon Engineering

Dichroic glass is glass which can display multiple different colors depending on lighting conditions. One dichroic material is a modern composite non-translucent glass that is produced by stacking layers of metal oxides which give the glass shifting colors depending on the angle of view, causing an array of colors to be displayed as … WebTranslations in context of "dans des cristaux liquides" in French-English from Reverso Context: composés chiraux et leur utilisation comme agents dopants dans des cristaux liquides orange oferta telewizja i internet

Pleochroism optics Britannica

WebThe zircon, for example, is strongly doubly refracting, but shows hardly any dichroism. A Text-Book of Precious Stones for Jewelers and the Gem-Loving Public Frank Bertram … WebDichroism = "two colored". Pleochroism or dichroism is the change in color evident as the mineral is rotated under plane-polarized light. The primary cause of dichroism or … WebRecent Examples on the Web The black hole paperweight is designed with dense black and layers of dichroic glass to create a swirling vortex on an endless backdrop. — Shannon … iphone touch id とは