Taiwan Applied Crystal (TAC) has developed the heat-resistant phosphor

Laser headlights and laser projectors have been a trend in the use of high-end illumination over the past decade. Initially, white light was created by using blu-ray LD and Ce: YAG fluorescent ceramics (headlights) or by casting LD on a phosphor painted color-wheel plate (projector).

As the laser power rises, the heat generated by the conversion of electro-optical efficiency increases the temperature and deteriorates the quantum conversion efficiency of the fluorescent material, which is known as thermal quenching, resulting in light decay.

Taiwan Applied Crystal (TAC) says it has successfully developed the heat-resistant phosphor that is different from the conventional ones. Under operating temperatures higher than 200°C, its luminous intensity is up to 20% higher than that of conventional phosphors.