To provide a latent image recording medium such as a lottery ticket, passbooks, a show ticket, a membership certificate, a passport, a picture book, a game, a cash card, a telephone card or an IC card, of such a construction that a latent image in a latent image forming structural layer can be visually determined when viewed through a dedicated verifying medium, contrary to a normal state that an image such as a hologram image or a diffraction grating image played back through the mutual interference of a reflected and a diffracted light is only viewed.
At least the latent image forming structural layer and a diffraction forming structural layer with light transmission properties are laminated in that order on a base material. Further, the latent image forming structural layer is at least a reflective layer and a polymer material layer showing thermotropic properties.
GOCHO SATOSHI