Speckle Contrast Reduction, which involves the rapid generation of images with different speckle patterns

摘要

A speckle reduction system is provided that includes a first speckle reduction component and a control module. The first speckle mitigation component contains electrode layers and a liquid crystal layer. The liquid crystal layer is disposed between the electrode layers and is configured to receive light from a coherent light source. The control module is configured to (i) provide a first voltage signal at a first voltage to the electrode layers to provide a first speckle pattern output, and (ii) provide a second voltage signal at a second voltage to the electrode layers to provide a second speckle pattern output. To provide sample output, wherein the first voltage and the second voltage are greater than zero. The control module is configured to transition between providing the first voltage signal and the second voltage signal in less than at least one half of an integration time of a human eye or 8 milliseconds.