Color enhancement utilizing up converters and/or down converters

Abstract

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.

Dependencies are inferred from the claim text.