A light emitting composition including first color emitters and second color emitters. The first color emitters are configured to emit, upon exposure to an energy source, visible light at a target color in response to absorption of energy across a first band of wavelengths. The second color emitters are configured to emit, upon exposure to the energy source, visible light at the target color in response to absorption of energy across a second band of wavelengths. The light intensity observable at the target color is enhanced relative to reflected white light without emission from the first and second color emitters. The light emitting composition can be a part of a paint, an ink, a fabric, a thread, a road sign, a highway marking, an automobile, a boat, a plane, a reflector, a building product, a concrete product, an epoxy product, a jewelry product, colored contact lens, a candle product, a rubber product, a plastic product, or other colored surface.本發明係關於一種發光組合物,其包括第一發色體及第二發色體。該第一發色體經組態以在曝露於能量源時回應於第一波長頻帶範圍內之能量的吸收而發射目標顏色之可見光。該第二發色體經組態以在曝露於該能量源時回應於第二波長頻帶範圍內之能量的吸收而發射目標顏色之可見光。相對於無該等第一及第二發色體之發射的白色反射光,可觀察到之目標顏色之光強度增強。該發光組合物可為油漆、墨水、織物、紗線、道路交通標誌、公路標記、汽車、船、飛機、反射器、建築產品、混凝土產品、環氧樹脂產品、珠寶產品、彩色隱形眼鏡、蠟燭產品、橡膠產品、塑膠產品或其他有色表面之一部分。(無元件符號說明)
