Patent ID: 7810263

Claim:
A modular indicator of information relating to an article on display, the indicator being a passive indicator using only ambient light for illumination, and wherein information indicated thereby being expandable by connecting together a plurality of such display units which are adapted to be fixed to one another along a longitudinal, composition axis, wherein each display unit is monolithic in that the display unit integrates therein a prism on which a face of the prism comprises at least a portion of the information to be indicated, such information being integrated directly onto the face of the prism, the display unit further being made of a material substantially transparent to light and configured in a substantially prismatic shape to gather incident light into a first surface of size A and reflect the incident light toward a front face of the same display unit, the front face having a surface of size B in a direction substantially perpendicular to said front face, wherein further, the front face of the display unit is treated so as to be translucent in order to absorb reflected light.