An anti-collision wildlife road sign is disclosed, comprising a road sign having a housing shaped in the form of a hazard. The road sign is positioned in an environment wherein the hazard is likely. A reflective element is provided on a surface of the housing to reflect light emitted by a motor vehicle to facilitate alerting a motor vehicle operator of the presence of the hazard in the environment.

An illuminant comprising a transparent substrate layer with a first index of refraction, a connecting layer with a second index of refraction that differs from the first index of refraction, and a metallic, translucent layer, wherein the connecting layer is arranged between the substrate layer and the metallic layer, and wherein on the side facing the connecting layer the substrate layer comprises a plurality of decoupling structures suitable for decoupling light that propagates within the substrate layer from the substrate layer in the direction towards the metallic layer.

There is provided an optical body including: a base material; and a light extraction unit that is formed on a surface of the base material and that extracts, to an outside of the base material, internally propagating light that is injected in an inside of the base material from a side surface of the base material. The light extraction unit is formed of a convex microlens array, and a maximum inclination angle of the convex microlens array substantially coincides with a maximum propagation angle of the internally propagating light.

An illuminant comprising a transparent substrate layer with a first index of refraction, a connecting layer with a second index of refraction that differs from the first index of refraction, and a metallic, translucent layer, wherein the connecting layer is arranged between the substrate layer and the metallic layer, and wherein on the side facing the connecting layer the substrate layer comprises a plurality of decoupling structures suitable for decoupling light that propagates within the substrate layer from the substrate layer in the direction towards the metallic layer.

There is provided an optical body including: a base material; and a light extraction unit that is formed on a surface of the base material and that extracts, to an outside of the base material, internally propagating light that is injected in an inside of the base material from a side surface of the base material. The light extraction unit is formed of a convex microlens array, and a maximum inclination angle of the convex microlens array substantially coincides with a maximum propagation angle of the internally propagating light.

A decorative plastic molded article has an outer appearance of metallic color like and a display of a character, a graph or a symbol. A body of the molded article has a plate-like portion; the plate-like portion has a first surface and a second surface; a small concave and convex portion is formed on the second surface; the small concave and convex portion has a plurality of inclined surfaces. The outer appearance of metallic color like is obtained by the total reflection light at the inclined surface and the display of a character, a graph or a symbol is obtained by the transmissive light through a planar transparent portion with shape of a character, a graph or a symbol formed in the small concave and convex portion or the total reflection light at the small concave and convex portion with shape of a character, a graph or a symbol.

There is provided an electronic appliance having an improved structure enabling multi-image conversion. The electronic appliance includes a display device configured to display a plurality of images, wherein the display device includes first and second images that are selectively displayed on a screen. A first light-guiding layer is disposed between the screen and a second light-guiding layer, and two light sources disposed to selectively illuminate the first light-guiding layer and the second light-guiding layer. The second light-guiding layer has a thickness that is 25% to 45% greater than a thickness of the first light-guiding layer such that an intensity of light that is emitted from the first light source and introduced into the second light-guiding layer is greater than an intensity of light that is emitted from the second light source and introduced into the first light-guiding layer.