4. Optical: systems and elements
  5. Diffraction
  6. From grating

John R Sambles

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Grating

Communications: radio wave antennas – Antennas – With spaced or external radio wave refractor
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Low frequency electromagnetic absorption surface

Communications: directive radio wave systems and devices (e.g. – Radio wave absorber – With particular geometric configuration
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Signature mark recognition systems

Optics: measuring and testing – Document pattern analysis or verification
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Specialised surface

Optics: measuring and testing – Document pattern analysis or verification
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Textured surface

Optical: systems and elements – Diffraction – From grating
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Profile ID: LFUS-PAI-P-2606361

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