The present invention provides a piezo-electricelectrostrictive device including a pair of thin plate sections in an opposed relation to each other, a fixing section for supporting the thin plate sections, and at least one pair of piezo-electricelectrostrictive elements are provided to the pair of thin plate sections. Via-hole conductors are arranged so that they extend in a lamination direction in a laminate, and function as a first inductor. Nodes similarly relates to their Engine in a many to one relationship. By using the ring-shaped light guide member, cost reduction is effectively achieved, and miniaturization of the illumination mechanism and the image capturing mechanism can also be attained. A manual feed button allows water to be manually fed to the boiler.