| 摘要 |
<p>A grating has a first plurality of elongate components (3, 3', 3'') extending generally in a first direction; a second plurality of transverse elongate components (5, 5', 5'') extending generally in a second direction transverse to the first direction; a first plurality of elongate sinuous components (7, 7', 7'') extending generally in the first direction; and a second plurality of transverse elongate sinuous components (9, 9' 9'') extending generally in the second direction. The first plurality of elongate sinuous components (7, 7', 7'') extend over at least a majority of the second plurality of elongate components (5, 5', 5'') and extend under at least a majority of the second plurality of elongate sinuous components (9, 9' 9''). The second plurality of elongate sinuous components (9, 9' 9'') extend under at least a majority of the first plurality of elongate components (3, 3', 3'') and over at least a majority of the first plurality of elongate sinuous components (7, 7', 7'').</p> |
