SPECTROSCOPIC MODULE

摘要

In a spectroscopic module (1), a light absorption layer (6) having a light passing hole (6a) through which light (L1) travelling to a spectroscopic section (3) passes and a light passing hole (6b) through which light (L2) travelling to a light detecting section (4a) of a light detecting element (4) passes is integrally formed by patterning. Therefore, the displacement of the relative positional relationship between the light passing hole (6a) and the light passing hole (6b) can be prevented from occurring. Moreover, the light absorption layer (6) reduces the occurrence of stray light and absorbs the stray light, so that the stray light can be prevented from entering the light detecting section (4a) of the light detecting element (4). Accordingly, the spectroscopic module (1) enables improved reliability.