Ping-Nan Chen

University Town of Shenzhen, National Defense Medical Center

Papers

Total Citations

H-Index

About

Ping-Nan Chen is a researcher whose work bridges optical engineering and haptic systems, with a focus on enhancing precision and stability in interactive technologies. In optics, Chen made a notable contribution with the design of an electrically tunable zoom system using liquid lenses, achieving a 5.06:1 zoom ratio and an effective focal length range of 6.93 mm to 35.06 mm. This work, published in 2015 and garnering 25 citations, demonstrates practical advances in compact, adaptive imaging systems. More recently, Chen has focused on the stability of haptic feedback in virtual environments. By introducing an impedance-passivity controller (IPC) and a fuzzy-passivity control framework, Chen addresses critical challenges in force feedback stability, such as negative damping and high spring coefficients that cause shock or divergence. These studies, from 2021 and 2022, each with 4 citations, apply energy-based passivity theory to improve the realism and safety of virtual reality interactions. Chen’s work is valuable for researchers developing more responsive and stable haptic interfaces and adaptive optical systems, offering practical control strategies that enhance user experience in VR and precision optics.