Optical communication for solid-state light sources

A lighting fixture, comprising:

• an array of solid-state light sources configured to generate light;
• and
• control circuitry adapted to:
• control a luminous flux of a light output emitted from a set of one or more of the solid-state light sources in the array such that the luminous flux of the light output varies to define luminous flux pulses;
• modulate a pulse width of the luminous flux pulses to set a characteristic of the light generated by the array of solid-state light sources;
• and
• modulate a pulse frequency of the luminous flux pulses such that the light generated by the array of solid-state light sources transmits data.

A driver module for a lighting fixture comprising:

• memory configured to store driver program code;
• and
• control circuitry configured to execute the driver program code, wherein the driver program code causes the control circuitry to:
• control a drive current to one or more solid-state light sources;
• and
• modulate the drive current through at least one of the one or more solid-state light sources in accordance with data bits, such that a light output from the at least one of the one or more solid-state light sources carries a data bit representation of the data bits.

A lighting fixture comprising:

• one or more solid-state light sources;
• and
• a driver module configured to:
• control a drive current to the one or more solid-state light sources;
• and
• modulate the drive current through at least one of the one or more solid-state light sources in accordance with data bits, such that a light output from the at least one of the one or more solid-state light sources carries a data bit representation of the data bits.