基于HD DVD技术的兼容紧凑型双激光波光学拾取头设计

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随着高清电视（HDTV）的兴起，高密度光盘（HD DVD）和蓝光光盘（BD）系列逐渐成为主流。相较于BD，HD DVD在生产成本和售价上更具优势，并且具有向下兼容DVD的功能。本文介绍了一种基于HD DVD技术的新型紧凑型光学拾取头（PUH），它结构简洁，体积小巧，特别之处在于采用了双激光波设计，使得PUH能够向下兼容DVD。 设计的这种PUH主要由五个棱镜（pentaprism）、一个准直透镜（collimating lens）和一个主镜头（objective lens）构成。在设计过程中，利用Zemax等光学设计软件对光路进行了深入分析，结果显示这一方案成功地实现了紧凑的尺寸与高效的光学性能。五棱镜的巧妙运用显著增加了光学路径长度，从而在减小PUH体积的同时保持了读取性能。 该新型PUH针对信息时代对于高速、高效数据存储和读取的需求而研发，其兼容性特点使其在市场中具有竞争力。随着高清多媒体内容的普及，对于能同时支持多种格式的光学拾取头需求日益增长，这种兼容性的设计无疑将推动HD DVD技术的发展，并可能在未来高清光盘标准中占据一席之地。 在技术层面上，本文涉及的关键知识点包括： 1. 高密度光盘技术发展：介绍了HD DVD和BD的竞争态势，以及HD DVD在成本和兼容性上的优势。 2. 光学拾取头设计：重点讲解了新型PUH的设计原理，包括其组件（如棱镜、透镜）的作用和布局。 3. 光学分析工具：提到了Zemax在设计中的应用，这是一项用于模拟和优化光学系统性能的软件。 4. 光路优化：通过五棱镜实现长光学路径和小型化设计，体现了光学工程的创新思维。 5. 兼容性设计：强调了新型PUH在向下兼容DVD方面的技术特点，展示了其市场适应性。 这篇论文探讨的是如何结合HD DVD技术开发出一种紧凑型且兼容性强的光学拾取头，对于推动高清光盘技术的发展和满足市场需求具有重要意义。

Interactively Picking Real-World Objects with Unconstrained

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《Interactively Picking Real-World Objects with Unconstrained Spoken Language Instructions》是一篇来自日本 Preferred Networks 的工作。囿于口语的复杂结构及人类指示本身具有的模糊性，因此如何理解口语中的...

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2023-06-01 上传
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2023-03-30 上传
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2023-04-14 上传
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2023-06-08 上传
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