Patent Number: 8,585,206

Title: Methods for operating scanning laser projectors to reduce speckle and image flicker

Abstract: Methods for operating a light source of a scanning laser projector to reduce speckle and image flicker in projected images are disclosed. The methods generally include projecting an image comprising a plurality of frames with a light source of the scanning laser projector. Simultaneously, a speckle reduction sequence comprising uncorrelated speckle patterns and partially correlated speckle patterns is projected with the light source of the scanning laser projector. The speckle reduction sequence is projected by varying a property of an output beam of the light source of the scanning projector. The duration of the speckle reduction sequence may be less than about 0.04 seconds or from about 0.07 seconds to about 0.13 seconds.

Inventors: Gollier; Jacques (Painted Post, NY)

Assignee: Corning Incorporated

International Classification: G03B 21/14 (20060101)

Expiration Date: 1/19/12018