Abstract: A multi-purpose visual signaling device, particularly for road emergency warning and in low visibility conditions, includes light-emitting means for generating a light beam and means for supplying power to the light-emitting means. The light-emitting means include at least one laser projector adapted to project images over a substantially flat surface for such images to be visible from a relatively long distance. The light-emitting means and the power supply means are mounted onto a stationary support structure, which may include a front warning triangle-defining portion. The laser projector comprises at least one laser diode and optical and/or electronic means for generating images in space or over a substantially flat surface. The optical and/or electronic means comprise a diffractive lens. Images include monochromatic, polychromatic and/or holographic images, possibly of variable configuration, and preferably form a triangular design.

Abstract: An interactive vehicle communication system, particularly for communication between motor vehicles, comprises a communication device (2) which may be placed on a stationary support (3) or a vehicle (4) traveling on a roadway and a receiver device (5), which may be placed on a stationary support (3) or a vehicle (4?) traveling on a roadway and interacts with said communication device (2). The communication device (2) comprises first means (6) for interfacing with external data detection and/or generation means, emitter means (9) for generating and emitting a visible light-emitting laser beam (8) with predetermined solid angle (a) and range, digitizing means (7) for digitizing said laser beam (8) and control means (10) for appropriately conforming and orienting said laser beam (8), to allow it to selectively interact with vehicle driving in a predetermined drive direction, excluding the other vehicles driving in the opposite drive direction.

Abstract: An interactive vehicle communication system, particularly for communication between motor vehicles, comprises a communication device (2) which may be placed on a stationary support (3) or a vehicle (4) traveling on a roadway and a receiver device (5), which may be placed on a stationary support (3) or a vehicle (4?) traveling on a roadway and interacts with said communication device (2). The communication device (2) comprises first means (6) for interfacing with external data detection and/or generation means, emitter means (9) for generating and emitting a visible light-emitting laser beam (8) with predetermined solid angle (a) and range, digitizing means (7) for digitizing said laser beam (8) and control means (10) for appropriately conforming and orienting said laser beam (8), to allow it to selectively interact with vehicle driving in a predetermined drive direction, excluding the other vehicles driving in the opposite drive direction.

Abstract: A multi-purpose visual signaling device, particularly for road emergency warning and in low visibility conditions, comprises light-emitting means (3) for generating a light beam (4) and means (5) for supplying power to light-emitting means (3). The light-emitting means (3) include at least one laser projector (6) adapted to project images (7) over a substantially flat surface for such images to be visible from a relatively long distance. The light-emitting means (3) and the power supply means (5) are mounted to a stationary support structure (2) which may include a front warning triangle-defining portion (12). The laser projector (6) comprises at least one laser diode (8) and optical and/or electronic means (9) for generating images (7) in space or over a substantially flat surface. The optical and/or electronic means (9) comprise a diffractive lens (10). Images (7) include monochromatic, polychromatic and/or holographic images, possibly of variable configuration, and preferably form a triangular design.