Patent ID: 8642231

Claim:
A reflection type volume hologram having any desired object image recorded in a reconstructible mode, together with a planar pattern which has been multi-recorded to comprise interference fringes, at least some of which are lined up substantially parallel with a hologram recording surface, and said planar pattern is designed such that when white illumination light is incident onto a hologram recording surface vertically from above, a color reconstructed at both ends of the planar pattern differs from a color reconstructed at a center of the planar pattern in a specific direction along the recording surface, and the whole planar pattern is reconstructed in the same construction color in a direction orthogonal to said specific direction along the recording surface, wherein the volume hologram is a security hologram having the object image and the planar pattern formed therein, wherein said pattern comprises at least one microcharacter or security pattern such that said pattern is recorded in an area of up to 1/10,000 relative to a hologram area; wherein one side or a diameter of the planar pattern has a size of up to 50 μm.