| 摘要 |
An optical encoder (14, 514) comprising a set of light sources (54, 154, 354, 554) configured to emit light rays in a serial manner, an encoded scale (44, 344, 544) configured to reflect at least a portion of the emitted light rays, and a photodetector (56, 156, 356, 556), where the photodetector (56, 156, 356, 556) is configured to detect at least a portion of the reflected light rays and to generate signals based on the detected light rays for each of the light sources (54, 154, 354, 554). |
