The invention discloses a color regulating plate for a
solid light source projector, wherein a fixing hole is arranged on the center of the color regulating plate; the plate is divided a
blue light area, a
green light area and a
red light area along the circumferential direction; the
blue light area is provided with a
light filter capable of penetrating blue and red lights but reflecting
green light, a green fluorescent
powder layer, a substrate and a
light filter capable of penetrating
green light but reflecting blue and red lights, from an incidence side to an emergent side; the
red light area is provided with the
light filter capable of penetrating blue and green lights but reflecting
red light, a red fluorescent
powder layer, the substrate and the light filter capable of penetrating red light but reflecting blue and green lights, from incidence side to emergent side; and the
blue light area comprises the substrate. The
chromaticity of three basic color lights of the color regulating plate is matched by adjusting the opening circumferential angles in the blue light area, the green light area and the red light area after a
solid light source and the red and green fluorescent
powder layers are confirmed. The color regulating plate can generate blue, green and red three basic color lights. When the color regulating plate is used, the color regulating plate rotates at a fixed speed, the color picture having no
flicker and no
tail of moving objects can be observed, and the color regulating plate has the advantages of high light efficiency, low
power consumption, long service life, safety, light and handy property, and the like.