Patent ID: 8388152

Claim:
A light-emitting device comprising: a circuit board having a plurality of through holes, a first surface, and a second surface opposite to the first surface, wherein each of the through holes has a first pathway and a second pathway, each of the first pathways extends from the first surface into the circuit board, each of the second pathways extends from the second surface into the circuit board and communicates with one of the first pathways, and an accommodating space of each of the second pathways is greater than an accommodating space of the corresponding first pathway; a light-emitting element disposed on the first surface and electrically connected to the first surface; a light-condensing element having a plurality of positioning posts, wherein a portion of the light-condensing element is disposed on the light-emitting element, and each of the positioning posts passes through one of the first pathways and is located inside the corresponding second pathway; and a glue disposed in the second pathways for fixing each of the positioning posts in the corresponding through hole.