The invention provides a reflector (2) comprising a reflector wall (20), the reflector wall (20) comprising a first wall surface (22) and a second wall surface (23) defining said reflector wall (20), the reflector wall (20) comprising a light transmissive material (21), wherein the reflector wall (20) has a first dimension (d1) and a second dimension (d2) defining a first reflector wall area, wherein each wall surface (22,23) comprises a plurality of parallel arranged elongated corrugations (210), wherein the corrugations have corrugation heights (h2) relative to recesses (220) between adjacent corrugations (210) and corrugation widths (w2) defined by the distance between adjacent recesses (220) at the respective wall surfaces (22,23), wherein the corrugations (210) have curved corrugation surfaces (230) between said adjacent recesses (220) having corrugation radii (r2) at the respective wall surfaces (22,23), and wherein over at least part of one of the first dimension (d1) and the second dimension (d2) one or more of (i) the corrugation heights (h2), (ii) the corrugation widths (w2), (iii) the corrugation radii (r2), and (iv) a shortest top-top distance (w12) of corrugations tops (211) configured at different wall surfaces (22,23) vary over said wall dimension (d1,d2) for at least one of the wall surfaces (22,23). The reflector (2) has a first end (3) and a second end (4), wherein a third distance (d3) between the first end (3) and the second end (4) is bridged by one or more reflector walls (20), wherein the one or more reflector walls (20) are configured tapering from the second end (4) to the first end (3), and wherein the reflector (2) has a reflector cavity (5).

The invention provides a reflector (2) comprising a reflector wall (20), the reflector wall (20) comprising a first wall surface (22) and a second wall surface (23) defining said reflector wall (20), the reflector wall (20) comprising a light transmissive material (21), wherein the reflector wall (20) has a first dimension (d1) and a second dimension (d2) defining a first reflector wall area, wherein each wall surface (22,23) comprises a plurality of parallel arranged elongated corrugations (210), wherein the corrugations have corrugation heights (h2) relative to recesses (220) between adjacent corrugations (210) and corrugation widths (w2) defined by the distance between adjacent recesses (220) at the respective wall surfaces (22,23), wherein the corrugations (210) have curved corrugation surfaces (230) between said adjacent recesses (220) having corrugation radii (r2) at the respective wall surfaces (22,23), and wherein over at least part of one of the first dimension (d1) and the second dimension (d2) one or more of (i) the corrugation heights (h2), (ii) the corrugation widths (w2), (iii) the corrugation radii (r2), and (iv) a shortest top-top distance (w12) of corrugations tops (211) configured at different wall surfaces (22,23) vary over said wall dimension (d1,d2) for at least one of the wall surfaces (22,23). The reflector (2) has a first end (3) and a second end (4), wherein a third distance (d3) between the first end (3) and the second end (4) is bridged by one or more reflector walls (20), wherein the one or more reflector walls (20) are configured tapering from the second end (4) to the first end (3), and wherein the reflector (2) has a reflector cavity (5).

Provided is a reflective glitter heat transfer sheet combined with a retroreflective structure, the reflective glitter heat transfer sheet including: a reflective glitter layer having glass beads and glitter particles arranged in an adhesive attached to a carrier film. The glass beads and the glitter particles are held in a state of being arranged in the adhesive by the adhesive, each of the glass beads is a retroreflector for achieving retroreflection, and each of the glitter particles is a reflector for achieving diffuse reflection. A primer layer is disposed on the reflective glitter layer, and a hot melt layer is formed on the primer layer for conducting heat transfer to an article to which the reflective glitter heat transfer sheet is to be applied.

Provided is a reflective glitter heat transfer sheet combined with a retroreflective structure, the reflective glitter heat transfer sheet including: a reflective glitter layer having glass beads and glitter particles arranged in an adhesive attached to a carrier film. The glass beads and the glitter particles are held in a state of being arranged in the adhesive by the adhesive, each of the glass beads is a retroreflector for achieving retroreflection, and each of the glitter particles is a reflector for achieving diffuse reflection. A primer layer is disposed on the reflective glitter layer, and a hot melt layer is formed on the primer layer for conducting heat transfer to an article to which the reflective glitter heat transfer sheet is to be applied.

A device includes first and second electrodes that are at least partially transparent in a spectral domain; an electroluminescent layer that lies between the first and second electrodes suitable for emitting electromagnetic radiation in the spectral domain, the electromagnetic radiation being circularly polarized in a first polarization direction; a structured substrate, the first electrode lying between the structured substrate and the electroluminescent layer, the structured substrate including features that are reflective in the spectral domain, and that possess a hollow geometric shape configured so that electromagnetic radiation that passes through the first electrode is reflected from the reflective features while preserving the first polarization direction, a filler material that is transparent in the spectral domain and that is arranged to fill the reflective features so that the structured substrate has a planar surface.

The disclosed retroreflective element includes a highly durable core with an ionic copolymer and a plurality of beads. These disclosed retroreflective properties remain intact even after continued application of external forces and stresses. Further, the ionic copolymer allows for beads to be loaded into the ionic copolymer of the core, securely disposed around the perimeter of the core, or both.

The disclosed retroreflective element includes a highly durable core with an ionic copolymer and a plurality of beads. These disclosed retroreflective properties remain intact even after continued application of external forces and stresses. Further, the ionic copolymer allows for beads to be loaded into the ionic copolymer of the core, securely disposed around the perimeter of the core, or both.

Markers and a system for use for autonomous vehicles which can help autonomous vehicles to be aware of their surroundings and/or their spatial location. Such markers can include metallic signage having one or more openings and which can include a front that is spaced a distance from a backing plate. The markers can also include patterns that are stamped, cut or otherwise formed in or on a roadway. When a vehicle traverses over the patterns, a sensor, which can include a sound sensor, can detect the sound or vibration produced by the pattern. Once the pattern is detected, the autonomous vehicle can access a database or other repository of patterns (including but not limited to internal memory) and thus obtain information about the location that the vehicle is traversing.

Markers and a system for use for autonomous vehicles which can help autonomous vehicles to be aware of their surroundings and/or their spatial location. Such markers can include metallic signage having one or more openings and which can include a front that is spaced a distance from a backing plate. The markers can also include patterns that are stamped, cut or otherwise formed in or on a roadway. When a vehicle traverses over the patterns, a sensor, which can include a sound sensor, can detect the sound or vibration produced by the pattern. Once the pattern is detected, the autonomous vehicle can access a database or other repository of patterns (including but not limited to internal memory) and thus obtain information about the location that the vehicle is traversing.

Discloses are a display panel, a method of manufacturing the same and a display device. The display panel includes: a first substrate; a second substrate disposed opposite to the first substrate; and a reflective structure group disposed on the first substrate, the reflective structure group includes a plurality of reflective structures in one-to-one correspondence with visual fields of view, and a reflective surface of each reflective structure of the reflective structures faces the second substrate, and the reflective structure is configured to reflect light from the second substrate in a predetermined direction to a corresponding field of view.