Structured light 3-D measurement module and system for illuminating an area-under-test using a fixed-pattern optic

摘要: A surface measurement module for 3-D triangulation-based image acquisition of a surface-under-inspection and under observation by at least one camera. The having: (a) casing housing an optical system comprising plurality lens elements positioned between fixed-pattern optic light source; (b) output said multi-frequency pattern pixels representing first second superimposed sinusoid projected simultaneously, each the sinusoids represented having unique temporal frequency to satisfy I n p = + ∑ k 1 K  B cos  ( 2 π f y N ) Eq . 1.1 (c) shifting element spatially shift during projection onto surface-under-inspection; (d) images captured are used acquisition.