Two Trees Photonics - Developing a real time full colour head up display (HUD) using highly efficient phase only holographic display technology

两树光子学 - 使用高效纯相位全息显示技术开发实时全彩平视显示器 (HUD)

• 批准号: 720087
• 金额: $ 21.12万
• 依托单位: TWO TREES PHOTONICS LTD
• 依托单位国家: 英国
• 项目类别: GRD Development of Prototype
• 财政年份: 2012
• 资助国家: 英国
• 起止时间: 2012 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=720087
• 关键词: Two; Trees; Photonics; Developing; real

Head up displays (HUDs) in cars and other vehicles are becoming increasingly common andhave been shown to significantly reduce accident rates by keeping the drivers eyes on theroads. Conventional automotive HUD projection systems are LCDs illuminated with white orcolour LEDs. These systems are limited in brightness, contrast, power usage, size and colourvariation. These systems are particularly ineffiecient in their usage of light, 1-2% opticallyefficient. The next generation requirements for automotive HUDs are very demandingespecially in terms of brightness, dimming range, supplied power and size. HolographicHUDs provide a variety of advantages in each of these areas. Two Trees Photonics havedemonstrated a very high quality HUD using its highly innovative and patented phase onlyholography with a truly analogue phase modulator. This approach is very efficient creatingHUD images with a brightness of 26,000Cd/m2 from low power silicon chip lasers but iscurrently limited to images that can be created using 2 colours (red and Green) and is onlyable to store a limited number of pre-computed holograms. To provide a step change in HUDdisplay capability and meet the requirements of the automotive OEMs the project aims tomove the technology to a full colour real time holographic display engine creating highlyefficient phase only holographic laser HUD. Two Trees Photonics has significant worldleading technical capability with holographic display and optical systems. The project willdevelop the components including the RGB laser light engine, the high speed driver enginefor phase modulation, the development of the real time computation engine and the phasemodulator driving engine to provide a full working prototype of the HUD system. The projectis intially focused on automotive but provides opportunities in aerospace, medical, rail,marine, near eye devies and augmented reality.

汽车和其他车辆上的平视显示器(HUD)正变得越来越普遍，研究表明，通过让司机的眼睛盯着这些显示器，平视显示器可以显著降低事故率。传统的汽车平显投影系统是用白色或彩色LED照明的LCD。这些系统在亮度、对比度、功耗、大小和颜色变化方面都受到限制。这些系统对光的利用效率特别低，光学效率为1-2%。下一代车用HUD的要求非常苛刻，特别是在亮度、调光范围、供电功率和尺寸方面。全息HUD在每个领域都提供了各种优势。Two Trees Photonics使用其高度创新的专利全相全息技术和真正的模拟相位调制器展示了非常高质量的HUD。这种方法非常有效地从低功率硅片激光器创建亮度为26,000Cd/m2的平显图像，但目前仅限于可以使用两种颜色(红色和绿色)创建的图像，并且只能存储有限数量的预计算全息图。为了提供平显显示能力的阶梯式变化，并满足汽车OEM的要求，该项目旨在将该技术转移到全彩色实时全息显示引擎，以创建高效的纯相位全息激光平显。Two Trees Photonics在全息显示和光学系统方面拥有世界领先的技术能力。该项目将开发包括RGB激光引擎、用于相位调制的高速驱动引擎、实时计算引擎和相位调制器驱动引擎的部件，以提供平显系统的完整工作原型。该项目最初专注于汽车，但在航空航天、医疗、铁路、海洋、近视设备和增强现实领域提供了机会。