| 摘要 |
PCT No. PCT/DK96/00190 Sec. 371 Date Dec. 1, 1997 Sec. 102(e) Date Dec. 1, 1997 PCT Filed Apr. 26, 1996 PCT Pub. No. WO96/34307 PCT Pub. Date Oct. 31, 1996An improved method based on a simple imaging operation with a simple one-to-one mapping between resolution elements of a spatial phase modulator and resolution elements of the generated intensity pattern is provided. According to the invention a method is provided for synthesizing an intensity pattern with low loss of electromagnetic energy, spatial modulation of electromagnetic radiation with a spatial phase mask for modulation of the phase of the incident electromagnetic radiation by phasor values of individual resolution elements of the spatial phase mask, each phasor value being determined in such a way that the values of the Fourier transformed phasors attain predetermined values for predetermined spatial frequencies, and the phasor value of the specific resolution element of the spatial phasor mask corresponds to a distinct intensity level of the image of the resolution element in the intensity pattern, and a spatial phase filter for phase shifting of a part of the electromagnetic radiation, in combination with an imaging system for generation of the intensity pattern by interference in the image plane of the imaging system between the part of the electromagnetic radiation that has been phase shifted by the phase filter and the remaining part of the electromagnetic radiation.
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