LIGHT-DETECTING DEVICE

摘要

A spectral sensor includes a Fabry-Perot interference filter which is provided with an opening to pass light transmitted according to a distance between a first mirror and a second mirror along a facing direction; a light detector which has a light reception unit to receive the light having passed through the opening; a wiring substrate on which the light detector is mounted; and a plurality of spacers which support the filter on the wiring substrate, such that a second space continuous with a first space in the opening and including the first space when viewed from the facing direction is formed between the filter and the wiring substrate. The light detector is disposed in the second space. The light reception unit is disposed in a region corresponding to the first space in the second space, when viewed from the facing direction.

主权项

1. light-detecting device comprising:
a Fabry-Perot interference filter having a first mirror and a second mirror and is provided with an opening to pass light transmitted according to a distance between the first mirror and the second mirror along a predetermined direction, the distance between the first mirror and the second mirror being variable; a light detector having a light reception unit to receive the light having passed through the opening; a wiring substrate, the light detector being mounted on the wiring substrate; and a support member supporting the Fabry-Perot interference filter on the wiring substrate, such that a second space is formed between the Fabry-Perot interference filter and the wiring substrate, the second space being continuous with a first space in the opening and including the first space when viewed from the predetermined direction, wherein the light detector is disposed in the second space, and the light reception unit is disposed in a region corresponding to the first space in the second space, when viewed from the predetermined direction.