| 1. | Optical head servomotors
光学头驱动装置 |
| 2. | If the optical head is on track , then the primary beam will be centered on a track ( with pits and bumps ) and the two secondary beams will be centered on land
如果光学头在轨道上，主激光束将处于轨道中心，两个副光束处于轨道之间。 |
| 3. | The main goal of this thesis is to design optical measurement and adjust equipment , which is used to check , adjust and determine laser spot of combo pickup
本文研究了如何设计开发计算机光学头的检测调整机，用于对一体化光头激光光斑的检测、调整和判定。 |
| 4. | We discuss a low cost fabrication method of a diffractive microlens with high performance for both blue and red dvd objective lenses , which consists of single - step photolithography and a wet etching process
摘要采用单步光刻和湿法腐蚀工艺，低成本快速制作面向高性能蓝光和红光dvd光学头物镜的衍射微透镜。 |
| 5. | Used arrayed optical receivers to collect laser energy . because of the different between aoa and axes of optical receivers , the energy between each receiver was corresponding different . to contrast with each other can show the aoa
该方法采用阵列光学头接收光能量，利用入射光束与不同光学通道夹角不同，接受的能量则不同的原理，通过对它们的比较来确定入射光束的角度。 |
| 6. | Equipped with a specially designed digital control system , the new pick - up and recording head can perform the basic functions of optical data storage , and is used for further experiment with sil and sb super - rens technology . with modified optical pick - up and recording head , a study is made on sil data storage technology . a new remelting process is proposed to overcome the difficulty of manufacturing ball lens with the radius smaller than 0 . 5mm
结合高密度光存储实验的具体要求，为改装后的光学头设计了专用伺服控制系统，刻录实验结果说明建立的数据存储光学头系统能很好的完成光学头系统各种基本功能，其成功建立为进一步的sil存储实验以及介质超分辨存储实验提供了基本的光存储刻录光学系统。 |
| 7. | First , an optical pick - up and recording head is built up by modifying the pick - up head of commercial dvd - rom driver . benefited from the special design , the new pick - up and recording head can use external laser source of short wavelength as well as the internal ld source of specifically wavelength to perform the write / read function on recording medium . the advantage of using external laser source is that the new pick - up and recording head can carry out the optical data storage experiment with short wavelength laser
文中首先通过对现有的dvd驱动器光学头系统的改装建立了一套通用的光数据存储光学头实验系统，该系统充分利用了现有dvd光学头的结构，并将外部的激光光源引入光学头系统，使改装后的光学头具有使用多种波长激光光源进行光存储试验的能力。 |
| 8. | The static recording by sil system is performed on phase - change medium , and the recorded line width is thinner by the factor of 1 . 44 than the recording width without sil system . the properties of sb layer super resolution near - field structure is also studied . the sin / sb / sin film structure is deposited on substrate of k9 glass by rf sputtering technology
Sil飞行头系统与光数据存储光学头实验系统相结合，在相变记录介质上得到了0 . 45 m的静态记录线宽，该结果与非sil存储系统的记录线宽( 0 . 65 m )相比压缩了1 . 44倍。 |
| 9. | This paper introduced in detail the whole structure and functions of new dvd optical pickup parameter adjusting equipment and its various components , discussed the difficulties during designing and developing the adjuster , mainly including : the mechanical adjusting table , optical pickup clamping and pneumatic controlling unit , optical pickup servo control and spot location detecting , and parameter acquiting & graphics display control software
摘要详细介绍了新型dvd光学头调整仪的总体结构及各组成部分的功能与作用，并对调整仪在设计开发过程中的一些难点作了初步探讨，主要包括机械调整平台、光学头夹持及气动控制单元、光学头伺服控制与光斑定位检测单元、以及参数提取显示控制单元等在设计研发中的基本思想和要点。 |
| 10. | A sil flying head is designed to keep the distance between sil and recording medium in near - field range . a sil optical data storage system is built up when the recording head is combined with sil flying head . meanwhile , using astigmatic focusing error detection technology and twin optical pick - up heads , a novel nontouching nanometer measurement method is developed to measure the flying height of sil , and provides us with a powerful tool to optimize the design of sil fly head
在sil存储技术研究方面，首先提出一种光学玻璃热熔加工制作sil的新方法，该方法克服了小半径球透镜加工的难题，成功制作出了半球固体浸没透镜；设计了sil飞行头系统，并利用光学头像散法聚焦误差检测原理，设计出一种双光学头sil飞行高度测量方案，实现了sil飞行头飞行高度的测量。 |
