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| 数字直接制版系统的激光扫描成像设计 | |
| 引用本文： | 沈凌云,郎百和,朱明,韩太林,石俊民.数字直接制版系统的激光扫描成像设计[J].液晶与显示,2012,27(5):687-691. |
| 作者姓名： | 沈凌云 郎百和 朱明 韩太林 石俊民 |
| 作者单位： | 1. 中国科学院长春光学精密机械与物理研究所,吉林长春130033;中国科学院研究生院,北京100049;长春理工大学电子信息工程学院,吉林长春130022 2. 长春理工大学电子信息工程学院,吉林长春,130022 3. 中国科学院长春光学精密机械与物理研究所,吉林长春,130033 4. 北京中印周晋科技有限公司,北京,100036 |
| 基金项目： | 吉林省自然科学基金(No.201115160) |
| 摘 要： | 提出了数字直接制版系统激光扫描成像结构,设计了基于数据单元分割的多链路激光扫描成像系统。建立了激光光束动态控制模型,设计了低畸变聚焦光学系统,设计制作了光栅光阀调制器,实现了单束1Mbit/s以上的高速率、高功率激光调制,使多路输出光强稳定一致。首次提出了基于机械运动的动态反馈补偿电路技术,自适应调整数据扫描速率,保证了成像速度与各像素点灰度的均匀性、各像素点尺寸和距离的一致性。实现了高分辨率、高网点还原率与高重复精度的数字直接制版系统。 |
| 关 键 词： | 激光扫描成像 数字直接制版 补偿电路 光束动态控制 |
| 收稿时间： | 2012/1/18 |
Design of Laser Scanning Imaging for Digital Computer-to-Plate System |
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| SHEN Ling-yun , LANG Bai-he , ZHU Ming , HAN Tai-lin , SHI Jun-min.Design of Laser Scanning Imaging for Digital Computer-to-Plate System[J].Chinese Journal of Liquid Crystals and Displays,2012,27(5):687-691. | |
| Authors: | SHEN Ling-yun LANG Bai-he ZHU Ming HAN Tai-lin SHI Jun-min |
| Affiliation: | 1.Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences, Changchun 130033,China; 2.Graduate University of Chinese Academy of Sciences,Beijing 100049,China; 3.School of Electronics and Information Technology,Changchun University of Science and Technology,Changchun 130022,China; 4.Beijing Zhong-Yin Zhou Jin Technology Co.Ltd.,Beijing 100036,China) |
| Abstract: | A system structure of digital Computer-to-Plate is proposed.The multi-beam laser scanning imaging system,based on the data unit segmentation,is designed through analysis of the key technologies.The model of dynamic control of laser beam is established.The focusing optics with low distortion is designed.High-power laser modulator with rate up to 1 Mbit/s per beam is realized with the designed and fabricated grating light valve modulator.Therefore output intensity of multi-channel laser beam is stable and consistent.The dynamic feedback compensation circuit based on mechanical movement is proposed,which adjust scanning data rate adaptively.The consistency of plate scanning speed,the uniformity of pixel gray,the consistency of pixel size and pixel distance are ensured by using of adaptive compensation circuit technology.The laser Computer-to-Plate system with high-resolution,pixel reduction rate and repeatability is realized. |
| Keywords: | laser scanning imaging computer-to-plate compensation circuit beam dynamic control |
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