Byard Kevin
Appl Opt. 2022 Feb 10;61(5):1112-1124. doi: 10.1364/AO.439798.
A method is described that mosaics linear uniformly redundant arrays and modified uniformly redundant arrays onto a square lattice to create coded aperture patterns of approximately 50% throughput that are contiguous, whereby every opaque element in the aperture is joined to at least one other opaque element. Parameters required to create these perfect high-throughput contiguous apertures for all coded aperture unit pattern orders of up to 300 elements are presented. The apertures presented increase significantly the number of known contiguous apertures in dimensions forbidden to the known patterns and that have the same imaging quality as uniformly redundant arrays and modified uniformly redundant arrays while having imaging quality superior to other known self-supporting apertures. The effect of supporting the weaker areas of these contiguous apertures is investigated. Contiguous apertures are of interest for coded aperture systems that require extra rigidity or use active collimation.
本文描述了一种方法，该方法将线性均匀冗余阵列和改进的均匀冗余阵列镶嵌到正方形晶格上，以创建吞吐量约为50%的连续编码孔径图案，其中孔径中的每个不透明元素都与至少一个其他不透明元素相连。给出了为所有高达300个元素的编码孔径单元图案阶数创建这些完美的高通量连续孔径所需的参数。所呈现的孔径显著增加了在已知图案所禁止的维度中且具有与均匀冗余阵列和改进的均匀冗余阵列相同成像质量的已知连续孔径的数量，同时其成像质量优于其他已知的自支撑孔径。研究了支撑这些连续孔径较弱区域的效果。连续孔径对于需要额外刚性或使用主动准直的编码孔径系统具有重要意义。
