How does the luminous function of wrist watch come true?
The luminous watch can still read the time without difficulty in the night. It is not only convenient, but also very magical. The reason for this is that luminous watches are often painted with luminous material on pointers and time scales. At present, the most popular type of luminous material used in advanced watches is SuperlumiNova, which has no radiation and can emit light for a long time. This material belongs to the light storage type, generally speaking, the material itself does not light, but through the light, until the "eat" light, will show its mettle, bring clear display in the dark place. As a result, some brands use lights to show their watches in order to show their luminous effects. There is, of course, a self luminous, that is, without the external light, itself will shine. For example, Ball and other brands, the use of a self luminous micro gas lamp, equivalent to in the pointer, when the standard place a small light bulb, and sometimes colorful, very...