DEVICE FOR RECORDING DIFFRACTION ELEMENTS

摘要

The invention relates to optical holography for recording diffraction optical elements and can be applied for manufacturing diffraction elements, rainbow holograms, for protecting goods and securities against counterfeit, in polygraphy. An apparatus for recording diffraction optical elements comprises an optically-coupled light source, a unit of beam deflection, the first lens, the unit of beam deflection comprises the first prism, a init of light beam separation, a focusing lens, a recording means, a drive for the recording medium movement and a control means electrically connected to the light source, the unit of beam deflection, the drive for the recording medium movement, the unit of beam deflection comprises the second lens and two reflex deflectors set sequentially along the optical axis, wherein the distance between the mirror plane of any of two deflectors and the light focusing point of the first lens is selected from the ratio:l