LIGHT MODULATION ELEMENT AND INFORMATION RECORDING MEDIUM

A light modulation element comprising an optical member is provided. The optical member comprises: a light control part to reflect light in a predetermined wavelength and to transmit light in other than the predetermined wavelength in light in at least a visible light range in accordance with a reproduction reference image for reproducing an original image; and a light transmissive part to transmit light in at least the visible light range including the predetermined wavelength, wherein the optical member comprises a hologram recording layer, and the light control part is an interference fringe in the hologram recording layer, and wherein the optical member makes an observer visually perceive a reproduced optical image of a color of the predetermined wavelength when a point light source is observed through a predetermined region including the interference fringe in the hologram recording layer from a normal direction to the optical member in a state where light in a predetermined wavelength range including the predetermined wavelength is incident from the point light source on the predetermined region, and makes an observer visually perceive a reproduced optical image of a color of a shorter wavelength than the predetermined wavelength when the point light source is observed through the predetermined region from a direction oblique to the normal direction.