Patent ID: 8564765

Claim:
An optical measurement system, comprising: a holder, having a rotating axis extending in a zenith axis of a spherical coordinate system and being capable of rotating about the rotating axis, the holder supporting a test light source positioned on a surface of the holder at an origin of the spherical coordinate system; a bracket; a plurality of optical sensors located in an arc line on the bracket, each of the optical sensors located at different elevation angles measured from a plane that contains the origin and is perpendicular to the zenith axis of the spherical coordinate system, the optical sensors spaced the same radial distance apart from the origin, and aimed at the test light source; a motor configured to drive the holder to rotate such that the test light source at the origin is able to relatively rotate with respect to the optical sensors about the zenith axis of the spherical coordinate system; and a processing unit coupled to the optical sensors for processing of data captured from the optical sensors.