Patent ID: 8178892

Claim:
A light-emitting diode (LED) chip having a micro-lens structure, comprising: a light-emitting structure, for producing and emitting light from a light-emitting surface upon application of current, the light-emitting surface having a central optical axis; and a transparent substrate, having a stacking surface and a micro-lens surface, the transparent substrate stacked on the light-emitting surface via the stacking surface to emit the light from the micro-lens surface, the micro-lens surface having an annular converge region deflecting and emitting the light passing therethrough towards the central optical axis, the annular converge region including an annular ridge portion centered on the central optical axis, and a diverge region deflecting and emitting the light passing therethrough away from the central optical axis, the diverge region being recessed from the annular ridge portion towards the central optical axis.