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Super-LumiNova is a brand name under which strontium aluminate–based non-radioactive and nontoxic photoluminescent or afterglow pigments for illuminating markings on watch dials, hands and bezels, etc. in the dark are marketed.
Green (emission at 515 nm) C3 Super-LumiNova applied on a diver's watch to make it readable in low light conditions. Blue-green (emission at 485 nm) BGW9 Super-LumiNova applied on a similar diver's watch face. The excitation wavelengths for strontium aluminate range from 200 to 450 nm, and the emission wavelengths range from 420 to 520 nm.
Green usually appears as the brightest color with a brightness as high as 2 cd/m 2 [6] and red appears the least bright. For comparison, most consumer desktop liquid crystal displays have luminances of 200 to 300 cd/m 2. [7] Sizes range from tiny tubes small enough to fit on the hand of a watch to ones the size of a pencil.
The watches have a 42-millimetre (1.5 in) diameter and 13-millimetre (0.5 in) thickness, and Super-LumiNova for the indexes and hands, which is the same lume as that used in the Omega Speedmaster. It has a quartz ETA G10.212 movement .
November 1917 ad for an Ingersoll "Radiolite" watch, one of the first watches mass marketed in the USA featuring a radium-illuminated dial. Radium was discovered by Marie and Pierre Curie in 1898 [1] and was soon combined with paint to make luminescent paint, which was applied to clocks, airplane instruments, and the like, to be able to read them in the dark.
Indiglo is a product feature on watches marketed by Timex, incorporating an electroluminescent panel as a backlight for even illumination of the watch dial. The brand is owned by Indiglo Corporation, which is in turn solely owned by Timex, and the name derives from the word indigo , as the original watches featuring the technology emitted a ...
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