LIGHT-EMITTING DEVICE Russian patent published in 2011 - IPC G02F1/25 F21V14/00 

FIELD: physics.

SUBSTANCE: light-emitting device, having the required colour point, having at least one solid-state light source (1), at least one light-converting element (5), a light-guide installation (2) and a switch control device (4), where the solid-state light source (1) serves to emit primary radiation (20). The light guide installation (2), lying between the solid-state light source (1) and the light-converting element (5), has at least one electro-optical switch (31) for controlled separation of the primary radiation (20) into a first part (21) and a second part (22). The switch control device (4) serves to control electro-optical switching or switches (31) for setup with possibility of changing the ratio between the first (21) and the second (22) parts of the primary radiation (20). The light-converting element (5) serves for partial or complete absorption of at least the first part (21) of the primary radiation (20) and for re-emitting secondary radiation.

EFFECT: design of an efficient light-emitting device.

12 cl, 4 dwg