A Study of Optical Design of Blu-ray Pickup Head System with Liquid Crystal Element
This research proposes a newly developed module: a newly developed optical design and a concept of active compensation method of Blu-ray pick up head system 1 with liquid crystal element.A hole-pattern electrode liquid crystal optics with input of external voltage are employed,that generates a symmetric non-uniform electrical field in the liquid crystal layer; this will direct liquid crystal molecules into the appropriate gradient refractive indices distribution,then resulting in convergence or divergence of specific light beam.From point view of optical design,liquid crystal optics delivers fast and the most important,active compensation through optical design when errors occur.Simulation and tolerance analysis work will be done by Code V 2 software inclusive of different tolerance analysis such as de-focus,tilt,de-center and their related compensation.The results conclude that optical design with liquid crystal optics as an active compensation device reach success with elimination of aberrations up to 46%compared to traditional ones.
Chih-Ta Yen Hui-Chen Yeh Yi-Chin Fang Jui-Hsin Hsu
Department of Electrical Engineering,National Formosa University,Yunlin,Taiwan Advanced Optical Design Center National Kaohsiung First University of Science and Technology,Taiwan Department of the Mechanical and Automation Engineering National Kaohsiung First University of Scien
国际会议
Progress in Electromagnetics Research Symposium 2011(2011年电磁学研究新进展学术研讨会)
苏州
英文
393-396
2011-09-01（万方平台首次上网日期，不代表论文的发表时间）