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 …

For a rough diffuser that fully depolarizes a linearly polarized laser, the speckle contrast of a
fully developed speckle image can be reduced from 1 to 0.5 by polarization diversity. This …

This Letter proposes to apply full-color computer-generated holograms to the virtual image
projection system so that the viewers can comfortably view floating images. Regarding the …

The measuring accuracy of laser optical sensors is gradually degraded over time as a result
of geometrical fluctuations of the laser beam. In a previous study by the present group, a …

摘要散斑现象严重影响激光投影的图像质量, 必须加以抑制. 在已有研究的基础上,
提出一种基于振动混光棒的散斑抑制方法, 介绍了相关理论, 并通过仿真和实验验证了该方法的 …

In laser projectors, speckle reduction can be achieved by projecting a changing binary
phase diffuser onto the screen. Here, we sequentially encoded a commercialized …

We study the propagation of light through a disordered magnetic colloidal media—a water
based poly-acrylic acid stabilized Fe3O4 nanoparticles based ferrofluid. The behavior of the …

Effective methods for speckle reduction are essential in improving the image quality of laser
imaging applications. Accordingly, the present study proposes a novel technique for …

Physiological changes in the retinal vasculature are commonly indicative of such disorders
as diabetic retinopathy, glaucoma, and age-related macular degeneration. Thus, various …

An easily implementable illumination optical element enabling collection and redirection of
multiple precollimated laser beams to be used as a laser spot illuminator (LSI) is proposed …