Complex Holographic Advanced Optical Spatial light modulator (CHAOS)

复杂全息高级光学空间光调制器（CHAOS）

• 批准号: 710627
• 金额: $ 12.74万
• 依托单位: TWO TREES PHOTONICS LTD
• 依托单位国家: 英国
• 项目类别: GRD Proof of Concept
• 财政年份: 2015
• 资助国家: 英国
• 起止时间: 2015 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=710627
• 关键词: Complex; Holographic; Advanced; Optical; Spatial

Head up displays (HUDs) in cars are becoming increasingly common & have been shown tosignificantly reduce accident rates by keeping the drivers eyes on the roads. Conventionalautomotive HUD projection systems are limited in brightness, contrast, resolution/definition,power usage, size & colour variation. The next generation requirements for AugmentedReality & high performance HUDs initially for the luxury car market are very demanding &holographic HUDs provide a variety of advantages in each of these areas. Two TreesPhotonics have demonstrated very high quality HUDs using its highly innovative & patentedphase only holography, which are in the process of being exploited commercially. However,phase only holographic HUD requires extensive computational resource & resolution is at thelimit of current FPGA & memory technology. Additionally, the frame-rate afforded by theexisting phase only spatial light modulators is limited by the elastic properties of liquidcrystals. To provide a step change in HUD capability the project seeks to develop aholographic HUD that utilises fully complex light modulation (i.e. both amplitude & phase)driven using real-time hologram computation in order to realise the higher performancecharacteristics needed to enable key innovations in automotive HUD. The reducedcomputational complexity of this approach will allow the resolution & frame-rate of thedisplay to be enhanced far beyond the current baseline technology. Two Trees Photonics hassignificant world leading technical capability with holographic display & optical systems. Theproject will determine the most feasible modulator implementation by simulation & realise thespatial light modulator. Holographic algorithms will be developed to match the fully complexlight modulation & a demonstrator unit will be fabricated. The project is initially focused onautomotive but provides opportunities in aerospace, medical, rail, marine, near eye devices &augmented reality.

汽车中的平视显示器 (HUD) 变得越来越普遍，并且已被证明可以通过让驾驶员的眼睛始终注视道路来显着降低事故率。传统的汽车 HUD 投影系统在亮度、对比度、分辨率/清晰度、功耗、尺寸和颜色变化方面受到限制。最初针对豪华汽车市场的下一代增强现实和高性能 HUD 的要求非常苛刻，全息 HUD 在每个领域都提供了各种优势。两家 TreesPhotonics 使用其高度创新且获得专利的纯相位全息术展示了非常高质量的 HUD，目前该技术正在商业化开发过程中。然而，纯相位全息 HUD 需要大量的计算资源，并且分辨率已达到当前 FPGA 和内存技术的极限。另外，现有的仅相位空间光调制器提供的帧速率受到液晶的弹性特性的限制。为了实现 HUD 功能的阶跃变化，该项目寻求开发全息 HUD，利用实时全息图计算驱动的完全复杂的光调制（即幅度和相位），以实现实现汽车 HUD 关键创新所需的更高性能特征。这种方法降低了计算复杂性，将使显示器的分辨率和帧速率得到增强，远远超出当前的基准技术。二树光子在全息显示和光学系统方面拥有世界领先的技术能力。该项目将通过仿真确定最可行的调制器实现并实现空间光调制器。将开发全息算法以匹配完全复杂的光调制，并将制造演示单元。该项目最初专注于汽车，但提供了航空航天、医疗、铁路、海洋、近眼设备和增强现实领域的机会。