In laser front projection display, the observer in the far field of the image pixels on the screen
will observe serious speckle noise. For the first time we show a way to eliminate speckles in …

Laser speckle noise occurs owing to the strong interference that originates in the high
coherency of laser light and the surface topography of the screen. The suppression of the …

We propose a system that reduces laser display speckles by vibrating the light pipe. A small
displacement of the light pipe appears to allow the total reflection of the laser, thereby …

A new method is proposed for reducing speckle in the far field. The degree of coherence of
an illuminating laser beam is phase-modulated via light-ultrasound interactions so that …

Speckle reduction techniques have been investigated in display systems with coherent light
sources. We propose a simple but efficient method to reduce speckle via two fast vibrating …

In this paper, the relationship between the coherence and the speckle contrast in a laser-
based projection display system is studied with the consideration of human visual percept …

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 …

Aberration and defocusing effects in the mechanism of speckle suppression in laser
projection displays were studied using the Fresnel approximation and the thin lens model …

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 …

Laser diodes allow one to build a very thin, wide-gamut edge-lit backlight system for a direct-
view liquid crystal display. An optical fiber is used to transfer its optical power into a light …