The structure is different. The 3d micro lens security sticker is a double-layer texture that is composed of regularly arranged micron-scale imaging lenses and graphic information of a few microns. The holographic sticker is composed of a single-layer micron or Nano-scale texture.
The imaging principle is different. The micro lens optical label is based on the imaging principle of refraction or reflection lens, while the holography is based on the principle of diffraction imaging.
Material thickness is different: the 3d micro lens array label is usually tens of microns, and it cannot be used as a transfer material currently. The holography is a single-layer micro-nano structure, the thickness can be several microns, and it can be used for transfer and hot stamping processes.
The visual effects are different. The three-dimensional effect of micro-lens imaging is obvious, it is not affected by the lighting environment, and the color is stable, but currently only has a single color, usually without metal texture. The 3D effect of holograms is greatly affected by ambient light. The color will change based on the viewing angle and often has a metallic appearance.