Patent Number: 062529382
Section: abstract

A grid, for use with electromagnetic energy emitting devices, includes at least metal layer, which is formed by electroplating. The metal layer includes top and bottom surfaces, and a plurality of solid integrated walls. Each of the solid integrated walls extends from the top to bottom surface and having a plurality of side surfaces. The side surfaces of the solid integrated walls are arranged to define a plurality of openings extending entirely through the layer. All of the walls can extend at 90.degree. with respect to the top and bottom surfaces, or alternatively, some of the walls can extend at an angle other than 90.degree. with respect to the top and bottom surfaces, such that the directions in which the walls extend all converge at a point in space at a predetermined distance from the front surface of the at least one layer. At least some of the walls also can include projections extending into the respective openings formed by the walls.