This application claims priority from European Patent Application No. 16202234.7 filed on Dec. 5, 2016, the entire disclosure of which is hereby incorporated herein by reference.

FIELD OF THE INVENTION

The invention relates to a connected or smart lamp and to a method for controlling a connected lamp. The invention also relates to a watch that can control such a connected lamp.

BACKGROUND OF THE INVENTION

When runners or cyclists move at night, they use a lamp to find their way. Nonetheless, all their attention must be on the path they are taking, so that they must stop to consult a watch or GPS, which is restrictive, particularly on trails or races.

Further, the lamp is often placed on the athlete's head or bike, making it is difficult to access when the athlete is moving, particularly at high speed or over uneven ground.

SUMMARY OF THE INVENTION

It is an object of the invention to overcome the drawbacks of the state of the art by proposing a portable connected or smart lamp for athletes in which the transmitted light is controlled by a third-party accessory, and in particular by a watch.

It is another object of the invention to propose a portable athlete's lamp able to project data sent by an external object connected to the lamp by a wireless connection.

More specifically, a first aspect of the invention concerns a portable connected lamp comprising:Lighting means configured to transmit a light, the lighting means including:

means for transmitting at least one light beam;

projection means arranged to project at least one light pattern;Reception means configured to receive control instructions via a wireless connection, the control instructions including data to be projected;Control means configured to control the projection means so that they project the data received by the reception means.

The lamp can thus receive data to be projected from a connected object.

This connected object is preferably a watch which can send the lamp data relating to the time, to the date, to the athlete's speed, to his or her acceleration, or timing data.

The connected object may also be connected to a mobile telephone which makes it possible to send data relating to the athlete's position, for example in the form of GPS data, or data relating to an incoming or outgoing call.

The connected object may also be an archway under which the athlete passes during a race, the received data in this case may relate to the athlete's position in the race, or to his speed, or to his distance from the finish line.

The lamp according to the first aspect of the invention may also exhibit one or more of the following features, taken individually or in all technically possible combinations:the lamp is preferably a head lamp;the lamp may be a bicycle lamp;the lamp has external dimensions of less than 6 cm;the lamp has a weight of less than 200 g, and preferably less than 100 g,the lamp preferably includes means of attachment: these attachment means may be a headband arranged to fix the lamp to the sportsman's head or a fastener configured to fix the lamp to a bicycle;the projection means preferably include a laser scanning projector;the laser scanning projector preferably includes:a photonic module including three primary lasers respectively transmitting green, red and blue laser beams;at least one scanning mirror;an electronic module configured to control the lasers and the mirror.the lamp may include transmission means arranged to send to a connected object, via a wireless connection, parameters relating to the state of the lamp;the lamp may include sensors measuring parameters relating to the state of the lamp;the control means may be able to control the features of the light transmitted by the lighting means according to the control instructions received;the lamp may also include a processor configured to generate data to be projected;the lamp may also comprise a memory configured to store data to be projected.

A second aspect of the invention concerns a connected watch configured to control a lamp, the watch including:a processor configured to generate control instructions to be sent to the lamp;a user interface configured to allow a user to control the control instructions generated by the processor by inputting an actuation sequence in the user interface;transmission means configured to send the control instructions to the lamp via a wireless connection.

The watch thus allows the lamp's functions to be remotely controlled, so that the user only needs to have access to his watch to control his lamp.

The watch according to the second aspect of the invention may also exhibit one or more of the following features, taken individually or in all technically possible combinations:the processor may be configured to generate the control instructions to be sent to the lamp according to the parameters generated by the watch;the watch may include wireless reception means configured to receive, via a wireless connection, parameters sent by a lamp, the processor further being configured to generate the control instructions to be sent to the lamp according to the parameters received by the wireless reception means of the watch;the user interface preferably includes at least one push button; the processor being configured to generate control instructions in response to actuation of the push button in a predetermined actuation sequence;the watch includes a memory in which are stored the control instructions associated with each actuation sequence.

A third aspect of the invention concerns an assembly comprising a lamp according to the first aspect of the invention and a watch according to the second aspect of the invention.

A fourth aspect of the invention concerns a method for control of a connected lamp, the lamp including lighting means configured to transmit a light, the lighting means including:means for transmitting at least one light beam;projection means arranged to project at least one light pattern;

the method including the following steps:Establishing a wireless connection between the lamp and the connected object;Reception by the lamp of control instructions sent by the connected object via the wireless connection, the control instructions including data to be projected;Controlling the projection means so that they project the data to be projected.

The method according to the fourth aspect of the invention may also exhibit one or more of the following features, taken individually or in all technically possible combinations:The control instructions may include instructions relating to the features of the projected pattern, the method including a step of controlling the projection means so that the projected pattern exhibits features conforming to the control instructions;The features of the projected pattern may be its intensity, its colour(s), its dimensions;The control instructions may include instructions relating to the features of the light beam, the method including a step of controlling the transmission means of the at least one light beam so that the at least one light beam exhibits features conforming to the control instructions;The features of the light beam(s) may be the intensity, the colour(s), or the dimensions thereof.

