This creation system provides a kind of mobile phone lateral light source structure of blood vessel detecting,It includes: an ontology,It is equipped with a light guide plate,The light guide plate is equipped with a light-emitting surface,The light guide plate side is equipped with an at least infrared light sources,The light emission direction system of infrared light sources person different with the light direction of the light-emitting surface,And the light guide plate system leads to the infrared ray optical direction of the infrared light sources by the light-emitting surface person that goes out light； By it,This creation system can hide the infrared light sources,And by infrared light uniformly and wide-angle go out light,With wide-angle irradiation what affected part,By can sharp what image acquisition unit through reflecting the infrared light of Hou,And through the corresponding blood vessel image person that affected part is presented of the display unit.本創作係提供一種血管偵測之手機側向光源結構，其包含：一本體，其設有一導光板，該導光板設有一出光面，該導光板一側設有至少一紅外線光源，所述紅外線光源之發光方向係與該出光面之出光方向相異者，且該導光板係將所述紅外線光源之紅外光導引至由該出光面出光者；藉之，本創作係可將所述紅外線光源隱藏，並將紅外光均勻且廣角出光，以廣角照射於患部，藉可利於影像擷取單元經反射後之紅外光，並透過該顯示單元對應呈現患部之血管影像者。
