MULTIPLE PHASE

Brand	Owner	Address	Description
MULTIPHASE	Active Ankle Systems, Inc.	233 QUARTERMASTER CT JEFFERSONVILLE IN 47130	MULTIPLE PHASE;exercise cushion insert for ankle and foot orthotic purposes;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

A phase-difference sensor measures the spatially resolved difference in phase between orthogonally polarized reference and test wavefronts. The sensor is constructed as a pixelated phase-mask aligned to and imaged on a pixelated detector array. Each adjacent pixel of the phase-mask measures a predetermined relative phase shift between the orthogonally polarized reference and test beams. Thus, multiple phase-shifted interferograms can be synthesized at the same time by combining pixels with identical phase-shifts. The multiple phase-shifted interferograms can be combined to calculate standard parameters such as modulation index or average phase step. Any configuration of interferometer that produces orthogonally polarized reference and object beams may be combined with the phase-difference sensor of the invention to provide, single-shot, simultaneous phase-shifting measurements.