Chien Sheng Liu

Summary

Affiliation: Industrial Technology Research Institute
Country: Taiwan

Publications

  1. doi Computational method for deriving the geometric point spread function of an optical system
    Chien Sheng Liu
    Department of Mechanical Engineering, National Cheng Kung University, Tainan 70101, Taiwan
    Appl Opt 49:126-36. 2010
  2. doi Determination of the linear equations of position-sensing detectors for small motion measurement systems
    Chien Sheng Liu
    Department of Mechanical Engineering, National Cheng Kung University, Tainan 70101, Taiwan
    J Opt Soc Am A Opt Image Sci Vis 27:2480-7. 2010
  3. ncbi A miniaturized low-power VCM actuator for auto-focusing applications
    Chien Sheng Liu
    Department of Mechanical Engineering, National Cheng Kung University, Tainan, Taiwan
    Opt Express 16:2533-40. 2008
  4. ncbi Miniaturized auto-focusing VCM actuator with zero holding current
    Chien Sheng Liu
    Department of Mechanical Engineering, National Cheng Kung University, Tainan, Taiwan
    Opt Express 17:9754-63. 2009

Detail Information

Publications4

  1. doi Computational method for deriving the geometric point spread function of an optical system
    Chien Sheng Liu
    Department of Mechanical Engineering, National Cheng Kung University, Tainan 70101, Taiwan
    Appl Opt 49:126-36. 2010
    ..Overall, the results presented in this study confirm that the proposed method provides an ideal solution for calculating the merit function and modulation transfer function of an optical system...
  2. doi Determination of the linear equations of position-sensing detectors for small motion measurement systems
    Chien Sheng Liu
    Department of Mechanical Engineering, National Cheng Kung University, Tainan 70101, Taiwan
    J Opt Soc Am A Opt Image Sci Vis 27:2480-7. 2010
    ..Two measurement systems are used as illustrative examples to validate the proposed methodology. The methodology of this study will be useful for system design of PSD-based measurement systems and their applications...
  3. ncbi A miniaturized low-power VCM actuator for auto-focusing applications
    Chien Sheng Liu
    Department of Mechanical Engineering, National Cheng Kung University, Tainan, Taiwan
    Opt Express 16:2533-40. 2008
    ..5 mm x 4 mm) and an improved power efficiency. In particular, the miniaturized actuator reduces the holding current required to maintain the lens module in the focusing position by around 75% of that required in a traditional actuator...
  4. ncbi Miniaturized auto-focusing VCM actuator with zero holding current
    Chien Sheng Liu
    Department of Mechanical Engineering, National Cheng Kung University, Tainan, Taiwan
    Opt Express 17:9754-63. 2009
    ..Overall, it is shown that compared to existing VCM actuators, the proposed actuator has bo a higher power efficiency and an improved positioning repeatability...