Beam splitter module having a secondary beam splitter for providing orthogonal light beams and parallel light beams

摘要

A primary beam splitter (310) of an optical apparatus (300) can be used to split an incident light beam (305) into a primary plurality of light beams and to direct a first beam therefrom in a first direction and a second beam therefrom in a second direction orthogonal to the first direction. Secondary beam splitters (315a,b) positioned in beam paths of the first and second beams can be used to split the first and second beams of the primary plurality of light beams into a secondary plurality of light beams (320a,b) and to split the same into a tertiary plurality of light beams (325a,b). A primary plurality of beam reflectors (335a,b/340a,b/345a,b) can be positioned and used to redirect the secondary and tertiary plurality of light beams toward a common detector (355).