Light detection device

A light detection device comprising:

• a wiring board including a wiring;
• a first support part disposed on a mounting surface of the wiring board;
• a Fabry-Perot interference filter disposed on the first support part, and having a first mirror part and a second mirror part between which a distance is variable;
• a light detector disposed on the mounting surface to face the first mirror part and the second mirror part on one side of the first support part;
• and
• a temperature detector disposed on the mounting surface, wherein
• the temperature detector is disposed on the mounting surface such that at least a part of the temperature detector overlaps a part of the Fabry-Perot interference filter when seen in a first direction perpendicular to the mounting surface and such that at least a part of the temperature detector overlaps a part of the first support part when seen in a second direction in which the first support part and the light detector are aligned with each other, and
• the wiring includes:
• a mounting portion provided on the mounting surface, and electrically connected to the temperature detector,
• an electrode pad provided on the mounting surface, and
• a connecting portion provided on the mounting surface, and connecting the mounting portion and the electrode pad, wherein
• at least a portion of the wiring on a side of the electrode pad is disposed outside the Fabry-Perot interference filter when seen in the first direction.