Patent ID: 8320031
Filing Date: 2012-11-27
Classification: G02B,G03H

Abstract:
1. A method for blazing of real time holographic fringes comprising: providing an interferometer with a focal plane array (FPA) to receive interference fringes; reading an FPA frame with L rows and N columns of data into a fringe processor; for each row, placing an n-pixel bucket having an odd number of pixels in column data points in the row at the first column; determining if a central point in the bucket is a local minima; saving that pixel value and recording its position in the row; shifting the bucket by one pixel; repeating the step of determining if the central point in the bucket is a local minima for each column in the row until all pixels in the row have been covered by the bucket; generating a blazed fringe between minima for the row; transferring the row to a spatial light modulator (SLM); repeating the step of determining if the central point in the bucket is a local minima for the row and the steps of generating a blazed fringe between minima and transferring the row to a spatial light modulator (SLM) until all L rows in the FPA are read; reading the next FPA frame into the fringe processor.