There is provided a compact image transmission and modification device comprising a base element defining on a first surface thereof at least one first array of locations having a first interlocation spacing and defining on a second surface thereof at least one second array of locations corresponding to the first array of locations and having a second interlocation spacing, and a plurality of signal transmission means, each of the means associating a location of the first array with corresponding location of the second array. There is also provided means for imparting to the base element a continuous rotary movement about a rotation axis defined therein, to provide a scanning movement thereof, wherein the image modification produced by the device is substantially a function of the ratio between the first interlocation spacing and the second interlocation spacing.