摘要:
A method for producing an optical element, preferably a security feature, wherein a film having a first embossed hologram in an embossing layer is provided, and a second embossed hologram is embossed into the same embossing layer such that the first embossed hologram is partly replaced with the second embossed hologram. The invention further relates to a method for producing an optical element wherein an embossable film provided with an embossed hologram is partly filled with printing lacquer, and a method for producing an optical element wherein hologram embossing is prevented by prior partial printing of the embossing film with curable printing lacquer. The invention relates further to optical features producible by the inventive methods, documents of value having an inventive optical feature and a numbering embosser for use in an inventive production method.
摘要:
An illumination system including a diffractive optical element (DOE) having an uneven surface that produces an illumination shape. The DOE comprising an uneven surface that produces a multipole illumination shape having angular scope element, wherein the angular scope element is a function of a radius and an angle of the produced multipole illumination shape, and wherein a position of the poles and sizes of the poles in an angular scope vary with a radial scope used in producing the multipole illumination shape, and a method of manufacturing a semiconductor device using the system.