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Oblique parallelogram pattern diffractive optical element
Oblique parallelogram pattern diffractive optical element
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机译:斜平行四边形图案衍射光学元件
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摘要
A diffractive optical element (DOE), including a substrate formed of a substantially transparent material having a substrate index of refraction. The substrate includes a first transmission face that is substantially planar and a second transmission face that is substantially parallel to the first transmission face. The second transmission face includes an array of non-rectangular pixels that form a complete tiling over the functional area of this face. For each of the non-rectangular pixels of the array, the phase shift of light transmitted through the substrate between the transmission faces is approximately equal to one of a set of predetermined phase shifts.
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