US Pat. No. 10,251,237

LIGHT DEVICE AND METHOD FOR CONTROLLING A LIGHT DEVICE

IART LAB GMBH, Basel (CH...

1. A lighting device comprising:at least one light module which has a front side and a rear side and a front lighting means arranged for emitting light from the front side, a rear lighting means arranged for emitting light from the rear side, and a control unit,
wherein the control unit of the at least one light module is arranged to adjust the front lighting means and the rear lighting means,
wherein the control unit of the at least one light module comprises an interface, via which the lighting device can be connected to a calibration device,
wherein the control unit of the at least one light module is designed to receive a calibration signal from the calibration device via the interface, and
wherein the control unit of the at least one light module is arranged to calibrate the at least one light module to a pre-adjustable light level by evaluating the calibration signal, to dynamically adjust the front lighting means for displaying information, and to adjust the rear lighting means to the dynamically adjusted front lighting means such that the calibrated light level is constant.