PHOSPHOR FOR LOW-ENERGY ELECTRON RAY, METHOD FOR PRODUCING THE SAME AND FLUORESCENT INDICATOR TUBE

摘要

PROBLEM TO BE SOLVED: To provide a phosphor for low-energy electron ray, emitting light with low-energy electron ray even in the case of mixing a red light emitting phosphor with a phosphor having different emission color and having a long life, and to provide its production method and a fluorescent indicator tube produced by using the phosphor. SOLUTION: The phosphor for low-energy electron ray is a mixture of a red light emitting phosphor and a phosphor having an emission light color different from the red light emitting phosphor. The red light emitting phosphor is obtained by adding the first additive comprising Pr as an emission center and the second additive comprising at least one metal element selected from Al, Ga, In, Zn, Li, Na and K to a matrix expressed by Ca1-xSrxTiO3(wherein 0≤x<1). COPYRIGHT: (C)2009,JPO&INPIT