Lighting and communication system comprising a transmitter and a receiver of modulated light signals

A lighting and communication system comprising a visible light transmitter, a modulated light signal transmitter, a modulated light signal receiver, a first optical fiber portion, a second optical fiber portion, a third optical fiber portion a fourth optical fiber portion and a fifth optical fiber portion that are distinct, the visible light transmitter being positioned at a first end of the first optical fiber portion, the modulated light signal transmitter being positioned at a first end of the second optical fiber portion, a second end of the first optical fiber portion and a second end of the second optical fiber portion being connected at a first connection area to a first end of the third optical fiber portion, the modulated light signal receiver being positioned at a first end of the fourth optical fiber portion, a second end of the third optical fiber portion and a second end of the fourth optical fiber portion being connected at a second connection area to a first end of the fifth optical fiber portion, a second end of the fifth optical fiber portion opening to the outside to illuminate and exchange modulated light signals,

• wherein the lighting and communication system comprises a telescope positioned at the second end of the fifth optical fiber portion, and
• wherein
• the telescope comprises an optical concentrator and a gradient-index lens positioned at an outlet of the optical concentrator, the second end of the fifth portion of optical fiber opening out opposite an outlet face of the gradient-index lens, and
• a lateral surface of the concentrator has one or more lateral facets of the prismatic type.