SPECTROSCOPIC MODULE

摘要

A spectroscopic module (1) comprises a body section (2) for transmitting lights (L1, L2), a spectroscopic section (3) for dispersing the light (L1) which has entered the body section (2) from a front face (2a) of the body section (2) and reflecting the dispersed light toward the front face (2a), a light detecting element (4) having a light detecting section (41) for detecting the light (L2) dispersed and reflected by the spectroscopic section (3) and electrically connected to wiring (9) formed on the front face (2a) of the body section (2) by face down bonding, and an underfill material (12), filled into a portion on the body section (2) side of the light detecting element (4), for transmitting the lights (L1, L2). The light detecting element (4) has a light passing hole (42) through which the light (L1) travelling to the spectroscopic section (3) passes, and a gathering portion (43) is formed at a rear face (4a) on the body section (2) side of the light detecting element (4) so as to surround a light emitting opening (42b) of the light passing hole (42).