Speckle-free RGB laser projectors for education

用于教育的无散斑 RGB 激光投影仪

• 批准号: 523274-2018
• 负责人: Xu, Changqing
• 金额: $ 8.85万
• 依托单位: McMaster University
• 依托单位国家: 加拿大
• 项目类别: Idea to Innovation
• 财政年份: 2018
• 资助国家: 加拿大
• 起止时间: 2018-01-01 至 2019-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=669073
• 关键词: Speckle; free; RGB; laser; projectors

The goal of this proposal is to develop a prototype speckle-free true red-blue-green (RGB) laser projector for educational use. The development of a true RGB laser projector will improve the overall image quality by dramatically increasing brightness and contrast, while enhancing colour gamut. Until now, laser speckling has been one of the major obstacles for the creation of laser projectors. However, we have developed a patent-pending novel speckle reduction technique that can reduce laser speckle contrast ratio (SCR) below the perception level of human eye (i.e. <5%), lifting the barrier to this lucrative market.**The objectives of the proposed project are to develop prototypes of speckle-free RGB laser modules suitable for education projectors, to retrofit a lamp based education projector with RGB laser light engine, and to demonstrate feasibility of the developed speckle-free RGB laser projector in an educational setting. These improvements are particularly valuable to classrooms with strong ambient light, in which higher brightness, improved contrast and better colour are crucial. In consultation with the end users (McMaster Campus Classroom Technologies), we have determined a set of design and performance criteria that must be met in order to make this technology commercially viable. For education projectors described above, a speckle-free RGB laser projector will need to have a SCR <5%, and a brightness >5000 lm. The RGB laser module will need to cost much less than the typical lifetime maintenance cost of a lamp projector (about $9000 parts & labour cost over 10 years at McMaster) in order to be competitive against existing lamp-based projectors on the market. This proposal describes our speckle-free RGB laser projection technology and research activities to meet the stringent criteria required to compete in this market.**The success of the proposed project will lead to a spin-off company to solve the insufficient brightness and**

这个提案的目标是开发一个原型无斑点的真正的红-蓝-绿（RGB）激光投影仪用于教育用途。真正的RGB激光投影仪的开发将通过显著提高亮度和对比度来改善整体图像质量，同时增强色域。到目前为止，激光散斑一直是激光投影仪制造的主要障碍之一。然而，我们已经开发了一种正在申请专利的新型散斑减少技术，可以将激光散斑对比度（SCR）降低到人眼感知水平以下（即<5%），从而解除了进入这个利润丰厚的市场的障碍。**建议项目的目标是开发适用于教育投影机的无斑点RGB激光模块原型，用RGB激光光引擎改造基于灯的教育投影机，并证明所开发的无斑点RGB激光投影机在教育环境中的可行性。这些改进对环境光强的教室尤其有价值，在这些教室中，更高的亮度、更好的对比度和更好的色彩至关重要。在与最终用户（麦克马斯特校园教室技术）协商后，我们确定了一套必须满足的设计和性能标准，以使该技术具有商业可行性。对于上述教育投影仪，无斑点RGB激光投影仪需要SCR <5%，亮度>5000 lm。为了与市场上现有的基于灯的投影仪竞争，RGB激光模块的成本将远远低于灯投影仪的典型终身维护成本（在麦克马斯特，10年的零件和人工成本约为9000美元）。本提案描述了我们的无斑点RGB激光投影技术和研究活动，以满足在这个市场竞争所需的严格标准。**拟议项目的成功将导致一个分拆公司，以解决亮度不足和**