A kind of side view light source in preceding introscope taken module,Include: a tube body； Image capture mould group before one； One front light-source； Side image capture mould group,It is made of a camera lens and an image sensor,If the front end of the what tube body,And the side image captures mould system towards lateral capture； One side light source,If the front end of the what tube body,Its light emission direction system towards lateral,And the illumination region of the light source and the capture region of the image capture mould group at least partially overlap； And a switching module,Electric connection what preceding image capture mould group,The front light-source,The side image captures mould group and the side light source； Wherein,The side light source system captures mould group closer to the front end of the tube body compared with the side image. Thereby, this creation ensures that side light source elder generation what image capture mould group enters in object slit, and capture is gone on smoothly.一種側視光源在前之內視鏡取像模組，包含有：一管體；一前影像擷取模組；一前光源；一側影像擷取模組，由一鏡頭以及一影像感應器所組成，設於該管體的前端，且該側影像擷取模組係朝側向取像；一側光源，設於該管體之前端，其發光方向係朝側向，且該光源的照明區域與該影像擷取模組的取像區域至少有部分相重疊；以及一切換模組，電性連接於該前影像擷取模組、該前光源、該側影像擷取模組以及該側光源；其中，該側光源係較該側影像擷取模組更靠近該管體之前端。藉此，本創作確保側光源先於影像擷取模組進入至物體狹縫中，使得取像可以順利進行。
