Speckle reduction using lenslet integrator

摘要

Disclosed herein are techniques for the reduction speckle of a projection display system using novel lenslet integrators and related methods. In one embodiment, a lenslet integrator system for reducing speckle on a display screen may comprise a first lenslet array configured to receive incoming light for use in displaying an image on a display screen. Specifically, the first lenslet array has motion sufficient to reduce speckle by averaging multiple speckle patterns across its array. Such an exemplary system may also include a second lenslet array configured to receive light that is roughly focused from the moving first lenslet array, due to the motion of the first array. In addition, such systems may also include an output lens configured to receive light focused from the second lenslet array for output from the system for illumination of the display screen.

主权项

1. A lenslet integrator system for reducing speckle on a display screen, the system comprising:
a first lenslet array configured to receive incoming light for use in displaying an image on a display screen, the first lenslet array having motion sufficient to reduce speckle by averaging multiple speckle patterns; a second lenslet array configured to receive light focused from the moving first lenslet array; and an output lens configured to receive light focused from the second lenslet array for output from the system for illumination of the display screen.