blazed grating


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Related to blazed grating: diffraction grating, transmission grating

blazed grating

A diffraction grating consisting of a series of nonsymmetrical grooves, thereby allowing a large proportion of the diffracted radiation to be concentrated into one order on one side of the zero order of the image.
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Standard first line security elements in DOVIDs could for instance be blazed grating graphics, zero order graphics, true colour 3D holograms and animations based on both varying grating orientation and frequency, while tilting might be standardized about the horizontal axis.
They are holographic devices that are individually created as required, Holospot on tesa's adhesive polymer film, kinoform as a blazed grating potentially on the product itself.