LIGHT-EMITTING DEVICE Russian patent published in 2021 - IPC H01L33/50 H01L33/60 

FIELD: optics.

SUBSTANCE: light-emitting device includes base; a laser element located on the upper surface of the base and configured to emit the laser beam longitudinally; luminescent element located on upper surface of base; first optical element located on upper surface of base and having inlet side surface, through which laser beam enters during operation, and outlet side surface through which laser beam leaves during operation, and intended to change the direction of propagation of the laser beam so that the laser beam passing through the first optical element irradiates the upper surface of the luminescent element; and a cover comprising: a light-protective element and a light-transmitting element located above the through hole, a laser element, a luminescent element and a first optical element, wherein the light-protective element has a protruding portion extending downward into a position which is lower than the upper edge of the first optical element, so as to be facing the output side surface of the first optical element.

EFFECT: higher efficiency and safety.

6 cl, 7 dwg