LED-BASED ILLUMINATION MODULE WITH PREFERENTIALLY ILLUMINATED COLOR CONVERTING SURFACES.

摘要

An illumination module (100) includes a color conversion cavity (160) with a first interior surface (107) having a first wavelength converting material (172) and a second interior surface (108) having a second wavelength converting material (135). A first LED (102A,102B) is configured to receive a first current (184) and to emit light that preferentially illuminates the first interior surface (107). A second LED (102C, 102D) is configured to receive a second current (185) and emit light that preferentially illuminates the second interior surface (108). The first current (184) and the second current (185) are selectable to achieve a range of correlated color temperature (CCT) of light output by the LED based illumination module (100).