Patent ID: 7423387
Filing Date: 2008-09-09
Classification: G09G,H05B

Abstract:
1. An apparatus for correcting colour of light emitted from light-emitting elements, comprising: a) a power source operatively coupled to a plurality of primary light-emitting elements and to at least one secondary light-emitting element, the power source being configured to provide current to the primary light-emitting elements and to the at least one secondary light-emitting element, each of the primary light-emitting elements being configured to emit light of a particular colour when activated, each of the at least one secondary light-emitting element being configured to emit light of another colour when activated; b) a primary current path comprising a path through the primary light-emitting elements; c) at least one secondary current path, each secondary current path comprising a path through at least one of the at least one secondary light-emitting element; and d) a plurality of control means, each of the control means being operatively positioned between the power source and at least one of the primary current path and the at least one secondary current path, the plurality of control means being configured to direct the current principally through the primary current path and selectively through the at least one secondary path, to thereby correct the colour of the light emitted by the primary light-emitting elements, wherein emitted light from the primary light-emitting elements and the at least one secondary light-emitting element is mixed to generate light having a corrected colour corresponding to at least one of a desired colour temperature and a desired colour of light.