Patent ID: 9372293
Filing Date: 2016-06-21
CPC Classification: G02B,Y10T

Claim Text:
1. A variable wavelength interference filter comprising: a first substrate having a first mirror; a second substrate, which has a movable section provided with a second mirror opposed to the first mirror, and is bonded to the first substrate; a third substrate, which is opposed to an opposite side of the second substrate to a side provided with the first substrate, and is bonded to the second substrate; a first inner space disposed between the first substrate and the second substrate; a second inner space disposed between the second substrate and the third substrate; and wherein a sealing member adapted to seal the first inner space and the second inner space is disposed between the first substrate and the second substrate, and between the second substrate and the third substrate, the sealing member covering a side surface of the second substrate and a side surface of the third substrate, a first bonding layer bonds the first substrate and the second substrate, a second bonding layer bonds the second substrate and the third substrate, a first portion of the sealing member is disposed outboard from the first bonding layer, and a second portion of the sealing member is disposed outboard from the second bonding layer.