Illuminated signboard for e.g. object lighting in museum, has light sources such as LEDs or cold cathode tubes, placed at margin of flat polymethyl methacrylate glass, where back side of glass coated with light reflective material

摘要

The signboard has light sources (C) e.g. LEDs or cold cathode tubes, placed at a margin (D) of a flat plexiglass(RTM: polymethyl methacrylate glass), where the margin is compressed with aluminum foil, where the signboard is bonded with an information carrier. A back side (B2) of the plexiglass(RTM: polymethyl methacrylate glass) is coated with a light reflective material. A front side (B1) of the plexiglass(RTM: polymethyl methacrylate glass) is provided with transparent and lacteal colored plexiglass(RTM: polymethyl methacrylate glass).