Patent ID: 8754373
Filing Date: 2014-06-17
Classification: G01J,H01L

Abstract:
1. A pyroelectric element comprising: a pyroelectric substrate; a supporting member having a cavity and configured to support the pyroelectric substrate from a back side of the pyroelectric substrate at a portion other than the cavity; and a plurality of light-receiving sections, each light-receiving section including a front-side electrode, a back-side electrode, and a portion of the pyroelectric substrate interposed between the front-side and back-side electrodes, wherein the front-side electrode is formed on a front side of a cavity-facing region of the pyroelectric substrate and the back-side electrode is formed on the back side of the cavity-facing region of the pyroelectric substrate, the cavity-facing region being a region of the pyroelectric substrate opposite the cavity, wherein the pyroelectric substrate warps in the cavity-facing region and is thinner at a crest of the warped substrate than at remaining portions of the warped substrate.