| 摘要 |
PURPOSE:To decrease the applied volume of rare eath phosphor material in order to hold high efficiency and color rendering by mixing the phosphor material of 510- 530nm peak wavelength with the phosphor on at least any one of a glass side and a discharge side. CONSTITUTION:5,000 deg.k of calcium halophosphate and manganese activated zinc silicate of 525nm peak wavelength is mixed with the glass side of an inner face of a glass tube at the rate of 80:20 in order to form phosphor material. Then, divalent europium activated strontium calcium chloroapatite or barium.magnesium aluminate blue phosphor material and cerium.terbium activated yttrium silicate or magnesium aluminate green phosphor material and trivalent europium activated yettrium oxide red phosphor material are mixed and applied to the discharge side at the rate of 4 of the glass side phosphor material to 1. This test product is examined according to JISC-7601 and JISZ8726. As the result, the test product exhibited almost the same effect of light out-put and superior improvement for color rendering comparing with a conventional product. |
