optical element for regulating the strahlseparation of several rays

摘要

A refractive optical element provides beam separation control for two or four light beams by refracting each beam from an incident surface through the optical element to be refracted from a parallel exit surface out of the optical element. The beams have closer beam to beam spacing after the refraction from the optical element than before. The incident and exit surfaces are angled relative to and symmetric around an optical axis. IMAGE