Patent ID: 8976346
Filing Date: 2015-03-10
Classification: G01M,G02B

Abstract:
1. A system for measuring an optical attenuation coefficient, the system comprising: an optical emitter; an optical detector; and an optical coupling lens comprising: the refraction surface, the first total reflection surface and the second total reflection surface are orderly connected end to end, a sectional surface of the optical coupling lens intersecting with the refraction surface, the first total reflection surface and the second total reflection surface is triangular shaped, the first aligning member and the second aligning member are formed on the refraction surface; and wherein the optical emitter is configured for emitting an optical signal, the first aligning member is configured for converting the optical signal into a parallel light beam and directing the parallel light beam to the first total reflection surface, the first total reflection surface is configured for reflecting the parallel light beam to the second total reflection surface, the second total reflection surface is configured for reflecting the parallel light beam to the second aligning member, the second aligning member is configured for converging the parallel light beam to the optical detector.