| 摘要 |
The invention is directed to a tunable diffraction grating (1) with optically active elements (6) arranged at a distance (A) next to each other. The optically active elements (6) are displaceable relative to each other in a lateral direction (x,y) and mechanically interconnected to a layer (4), which is made out of a deformable material. A deformation of the layer (4) in a direction (z) in general perpendicular to the lateral direction (x,y) causes a change in the relative distance (A) of the optically active elements (6).
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