| 摘要 |
Apparatus and method for measuring angular distribution of light generated by visual displays or light emitting devices are provided. An optical probe can be rotated manually around test point; meanwhile the optical probe drives a goniometer. The goniometer provides angular location of the optical probe to a data acquiring circuit. The central axis of goniometer is separated from the central axis of the circular movement of optical probe. A Y shape cable transits light and angle information for data acquiring.
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