In laser display system, speckle noise produced by laser coherence has a serious effect on
image. The condition for a diffuser to produce the maximum speckle reduction with the …

The condition for a diffuser to produce the maximum speckle contrast reduction with the
minimum number of distinct phase patterns is derived. A binary realization of this optimum …

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 …

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 …

Speckle is one of the most serious problems in laser projection system. Most speckle
reduction methods in a laser projector can be categorized into wavelength diversity, angular …

Speckle and the compound speckle can be reduced by angle diversity. In laser projection
displays, simple, low cost and efficient speckle reduction techniques require smart optical …

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 …

While laser projection has many advantages, there is a problem with speckle patterns
generated as a result of interference of the laser beam and results in bad effects to …

We describe several techniques for the measurement of speckle noise and efficient
implementations for its eradication in laser projection displays. A procedure is given for …

We propose using a two-level (− 1 and+ 1 as variables) orthogonal array (OA) to generate a
binary phase diffuser for speckle reduction in laser projection displays. Compared with the …