Abstract: A portable lamp, such as a headlamp is presented. The lamp contains a light source comprising one or more sources for generating at least one light beam; a means for controlling the brightness of said at least one beam in response to a control information or a control signal; and a control unit for the purpose of generating said control information or said control signal. The control unit contains a photo sensor and a regulation circuit controlling a switch-off phase of one or more beams during a period not visible to the holder of the lamp. The switch off phase being combined with at least one measure of diversity made by means of the photo sensor(s) on the reflective ambient environment.

Abstract: Portable electric lamp including a lighting module, and a compact case containing a power supply for supplying the lighting module and a limitation device for a current delivered by the power supply, the limitation device including a controlled limitation switch coupled between a reference terminal of the power supply and an output terminal of the lighting module, the limitation device being configured so as to determine a supply voltage between an output terminal of the limitation switch and the reference terminal, and to control the limitation switch so that it is in a closed state when the supply voltage is lower than or equal to a desired voltage.

Abstract: A portable lamp comprising: Communication means for exchanging identification data, configuration settings or control instructions with another portable lamp. More specifically, the communication means are used for avoiding exposition to glare.

Abstract: A portable lamp, such as a headlamp, comprising: a light source comprising one or more sources for generating at least one light beam; means for controlling the brightness of said at least one beam in response to a control information or a control signal; a control unit for the purpose of generating said control information or said control signal; wherein said control unit comprises at least a photo sensor and a regulation circuit controlling a switch-off phase of one or more beams during a period not visible to the holder of the lamp, said switch off phase being combined with at least one measure of diversity made by means of said photo sensor(s) on the reflective ambient environment.

Abstract: A portable lamp comprising: Communication means for exchanging identification data, configuration settings or control instructions with another portable lamp. More specifically, the communication means are used for avoiding exposition to glare.

Abstract: Portable electric lamp including a lighting module, and a compact case containing a power supply for supplying the lighting module and a limitation device for a current delivered by the power supply, the limitation device including a controlled limitation switch coupled between a reference terminal of the power supply and an output terminal of the lighting module, the limitation device being configured so as to determine a supply voltage between an output terminal of the limitation switch and the reference terminal, and to control the limitation switch so that it is in a closed state when the supply voltage is lower than or equal to a desired voltage.