In laser projection systems the observer in the far field of the image points on the screen will
recognize serious speckle noise. There are many methods to reduce or eliminate speckles …

An optical scheme for speckle suppression using two or three partially coherent beams in a
projection system is proposed. Diffractive optical elements (DOE) placed in the intermediate …

Speckle is the main obstacle for the use of laser light sources in projection technology. This
paper focuses on speckle suppression by the reduction of temporal coherence which is …

Besides its desirable power level, the use of a laser as a light source in microscopes opens
the possibility of observing high signal-to-noise ratio images of dynamic phenomena that are …

We utilize spatial and angular diversity to achieve speckle reduction in laser illumination.
Both free-space and imaging geometry configurations are considered. A fast two …

The theory of speckle noise in a scanning beam is presented. The general formulas for the
calculation of speckle contrast, which apply to any scanning display, are obtained. It is …

Speckle arises when coherent light scattered from a rough surface is detected by an
intensity detector that has a finite aperture, such as an observer. In a laser projection display …

“Objective” speckle arises from the uneven illumination of an object with a multiplicity of
waves that interfere at its surface.“Subjective” speckle arises at rough objects even if they …

Recently, a practical method of speckle reduction in laser rear projection displays that uses
an optical system with a small moving diffuser has attracted much attention. In this paper, a …

An experiment was performed to study the correlation between laser speckle patterns
obtained at different wavelengths at a fixed point at the image plane. Results agree with a …