Tunable interference filter comprising light absorbing layers

摘要

A wavelength tunable interference filter includes a fixed substrate, a fixed reflection film that is provided on the fixed substrate, reflects part of incident light, and transmits at least part of the incident light, a movable reflection film that faces the fixed reflection film, reflects part of incident light, and transmits at least part of the incident light, and a fixed electrode that is provided in an area around the fixed reflection film and has a light absorbing layer and a metal layer, and the light absorbing layer is disposed in a position closer to the fixed substrate than the metal layer.