Patent ID: 8903118

Claim:
A dome diaphragm, comprising: a dome portion; a top portion located on a top of the dome portion; an edge portion located at an outer peripheral portion of the dome portion; the dome portion consisting of a plurality of polygonal planar small portions with the entire surface of the dome portion being divided into the plurality of polygonal planar small portions; the plurality of polygonal planar small portions connecting to one another to form a plurality of layers from the top portion to the edge portion, each layer surrounding the top portion, wherein a number of the polygonal planar small portions forming a layer closer to the edge portion is greater than a number of the polygonal planar small portions forming a layer closest to the top portion, and wherein an outer edge of a layer closer to the edge portion is a polygon having more sides than an outer edge of the layer closest to the top portion, the outer edge of the layer closer to the edge portion forming a polygon that has a number of sides that is a multiple of the number of sides of the polygon forming the layer closest to the top portion; and every two adjacent polygonal planar small portions contact one another to form a plurality of linear ridge portions in each layer and across the layers so that the plurality of linear ridge portions are over the entire dome portion.