Brightness light-emitting phosphor coating

As the coating thickness increases, the coating also increases the emission brightness , but when the coating thickness reaches a certain value, the coating rate of increase brightness becomes smaller, because the light intensity is contained within the light emitting unit area determines the number of powder , as the coating thickness increases , glow pigment powders includes a number of phosphor increases. However, when the thickness reaches a certain value, the force of the coating covering the bottom of the glow powder suppliers on the light emission luminance contribution coating is reduced, so as to increase the coating thickness increases the brightness of the luminous paint is no longer apparent.