Importance

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Abstract

A method may be applied to a vehicle. The vehicle includes at least two devices to emit light that provide light energy by using a centralized light source, and each of the devices to emit light is connected to the centralized light source by using an optical waveguide. A control device in the vehicle may obtain a light-emitting instruction, where the light-emitting instruction carries information about a first optical power required by one target device to emit light of the at least two devices to emit light, or information about a first optical power required by each of a plurality of target devices to emit light; and allocate, based on the information about the first optical power, light emitted by the centralized light source, so that each target device to emit light obtains respective corresponding light by using the optical waveguide.

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First Claim