![]() ![]() Even today, it is still possible to purchase a luminescent Radiomir von Panerai – without radium, however.įor their wearers, however, radium watches were comparatively safe, since the radiation emitted by radium only amounted to a few centimetres in the air and was already blocked by the watch case. The invention of luminescent watches meant great success for Panerai and led to a series of watches being named after the luminescent material. After World War I had already helped the wristwatch gain acceptance, it also ensured high demand for light-independent, luminous watches that could be used for precise operations of modern war. Since radium has a half-life of 1,622 years, this means a relatively eternal luminous effect that requires no "charging". The energy produced by the radioactive decay of radium bromide was stimulated by zinc sulphide, thus making the fluorescent substance glow permanently. Guido Panerai, an Italian pioneer in the field of optics and watches, was the first to patent a phosphor with the name "Radiomir" in 1914. In 1898, radium was discovered and it was already known that it had self-luminous characteristics. The development of luminous watches from radium to tritiumĪt the beginning of this evolution was the discovery of radioactivity by Marie and Pierre Curie and the observation that metal salts (purified uranium) have much lower radioactivity than uranium ore. We take a look at the exciting evolution that l uminous watches have undergone – from using poisonous radium to Super-LumiNova. Since the early twentieth century, the advantages and disadvantages of various chemical methods have shaped the way in which luminous materials can be applied to watches. But in the last century reality was different and we needed clocks that could show us the time even under difficult light or visibility conditions. We even speak of the heavy light pollution in our environment. THEWATCHES.Darkness has become a relative expression.Please just get in contact with us and our technicians will assist you in finding the best material for your custom application. The right choice will improve the aesthetic appearance and performance of the final product. ![]() Sometimes, one solution does not fit for all: To reach the highest quality and aesthetic standards, which are demanded by the watch industry, only the best possible materials are good enough: Specially tailored pigments in different grain size distribution, shape and treatments offer optimized solutions for various applications like Stylograph application, silk screen or pad/transfer printing. Phosphorescent Pigments, specially tailored on your Custom Application Orange or red bodycolored pigments show a yellow to orange/ red emission due to an emission shift. The Swiss Super-LumiNova ® White Line pigments with their white body colors (appearance on daylight) and the white emission in the dark offer various design possibilities which have never been seen before. If you are looking for a dark, very eye-pleasing emission color, the Swiss Super-LumiNova ® violet line might be your favorite choice. In such situations, the blue emission is better visible by the human eye. The human eye has the highest sensitivity to the green emission, when coming directly from sunlight into the dark (photopic vision).Īfter adaption to darkness, the human eye is changing to scotopic vision with higher sensitivity but no color perception. UL(Ultramarine Line, ultramarine blue emission).WL (White Line, complete white emission).These new afterglow colours complete our existing basic emission colours below and open up countless additional possibilities in the development of your new products: With an almost infinite choice of emission colors, you can now make almost all your design dreams come true. Swiss Super-LumiNova ® is from now available in every customized emission color to your needs as well: For example, do you need three different shades of pink in the dark on your dial? No problem, we will be happy to develop these emissions for you. Customized Emission Colors (Emission Color in Darkness) ![]()
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