Optical structure

An optical structure, comprising:

• an embossed layer having an embossed face including a recording area, the recording area including an embossed recording body having an uneven structure;
• and
• a light reflecting layer covering a part or the entirety of the recording area, characterized in that
• the recording area includes a refractive mirror area and a diffractive area in the vicinity of the refractive mirror area,
• the refractive mirror area includes a plurality of aligned inclined mirrors constituting the embossed recording body,
• the diffractive area has a diffractive structure,
• the refractive mirror area has a plurality of local mirror structures,
• the diffractive area has a plurality of local diffractive structures,
• each pair of the local diffractive structure and the local mirror structure adjacent to the local diffractive structure forms one local structure,
• an azimuth direction of a normal vector of the inclined mirror in the local mirror structure and an azimuth direction of a grating vector of the local diffractive structure are similar within the local structure so that the local mirror structure is coupled to the local diffractive structure,
• the local diffractive structure and the local mirror structure coupled to the local diffractive structure are separated, and
• diffracted light of the local diffractive structure is mixed with reflected light of the local mirror structure coupled to the local diffractive structure.