Tunnel Leuchtdichte

Tunnel Leuchtdichtekamera

The requirements for the lighting of a tunnel are determined by the properties of the human eye. The detectability of vehicles and obstacles depends on both the lighting and the reflective properties of the road surface and the tunnel walls.

Tunnel lighting shall be controlled in such a way that drivers can safely approach, pass through and exit the tunnel both during the day and at night. Especially when entering the tunnel, a driver must be able to detect obstacles in time and stop.

The luminance describes what people perceive as brightness and is therefore the decisive control variable for tunnel lighting.

The environment to be measured is set via a lens in the luminance camera. Light from this environment hits the camera's photo element, which then calculates the luminance and outputs it via the analogue outputs.