Optical fiber illumination system with optical feedback return circuit
A technology of optical fiber lighting and optical feedback, which is applied to the light guide, lighting device, lighting and heating equipment of the lighting system, etc., can solve the problems that the complete separation of photoelectric and optical fiber lighting cannot be realized, so as to improve the utilization rate of light source, avoid resource idleness, The effect of safe and reliable lighting requirements
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[0023] refer to figure 1 , the driving circuit is connected with the fiber coupling module, drives the LED in the fiber coupling module to emit light, the light enters the optical fiber cable 4 from the output end of the fiber coupling module through coupling, the optical fiber cable 4 sends the light into the optical switch 5, and part of the light passes through the optical switch 5 Entering the lighting terminal 6 to generate lighting, another part of the light becomes feedback light and returns to the optical fiber cable for transmission, and is sent to the photoelectric detection module. The feedback light signal is converted into an electrical signal, and finally sent to the acquisition card through the wire 11. The acquisition card transmits the converted electrical signal to the feedback circuit, and the feedback circuit controls the driving circuit to adjust the power after the feedback circuit responds, thereby changing the luminous power of the entire circuit to ensu...
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