Results 81 to 90 of about 6,059 (275)

Accuracy characterization of Shack–Hartmann sensor with residual error removal in spherical wavefront calibration

Light: Advanced Manufacturing
The widely used Shack–Hartmann wavefront sensor (SHWFS) is a wavefront measurement system. Its measurement accuracy is limited by the reference wavefront used for calibration and also by various residual errors of the sensor itself.
Yi He, Mingdi Bao, Yiwei Chen, Hong Ye, Jinyu Fan, Guohua Shi   +5 more
doaj   +1 more source

Scanning Wavefront Sensor for Measurement of Highly Divergent Wavefronts

IFAC-PapersOnLine, 2019
Abstract This paper deals with the characterization of freeform optics by means of a wavefront sensor. Freeform optics show an increasing demand since they have the potential to improve optical system performance while reducing size, weight and complexity.
Georg Schitter, Martin E. Fuerst
openaire   +2 more sources

A Periodic Error Correction Method for Terahertz Coded‐Aperture Imaging

Advanced Intelligent Systems, EarlyView.
A physics‐constrained unsupervised learning framework with periodic error correction is proposed for terahertz coded‐aperture imaging. The method improves reconstruction robustness against noise and model mismatch, while reducing reliance on large‐scale labeled data.
Hongxu Wu, Jiangtao Ji, Chenxi Liu, Fei Yang, Shuang Peng, Haiying Lu, Junwei Wu, Xiaojian Fu, Huifeng Ma   +8 more
wiley   +1 more source

RISTRETTO: a comparative performance analysis of the unmodulated pyramid wavefront sensor and the Zernike wavefront sensor

Adaptive Optics Systems IX
15 pages, 11 figures, SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama ...
Shinde, Muskan, Blind, Nicolas, Lovis, Christophe   +2 more
openaire   +2 more sources

Design of Compact Liquid Crystal on Silicon Projection Optics Utilizing a Common Freeform Optical Path for Augmented Reality Displays

Advanced Intelligent Systems, EarlyView.
This study presents a compact freeform projection optics using dual wedge prisms for waveguide displays. Unlike previous designs that separate illumination and imaging paths, a freeform optical path integrates both. The system achieves a 32º field of view, 37.5 pixels per degree, and a total volume of less than 2 cm3.
Ximeng Wang, Dewen Cheng, Yuefan Shan, Da Wang, Tong Yang, Yongtian Wang   +5 more
wiley   +1 more source

Study of Point Scanning Detection Mechanisms for Vibration Signals with Wavefront Sensors

Photonics
Seismic wave laser remote sensing is extensively employed in seismic monitoring and resource exploitation. This work establishes a vibration signal point scanning detection system utilizing wavefront sensors, leveraging their high resolution, array ...
Quan Luo, Hongsheng Luo, Yiyou Fan, Guihan Wu, Haoming Chen, Yun Pan, Wei Jiang, Jinshan Su   +7 more
doaj   +1 more source

Gaze‐Engineered 3D Augmented Reality

Advanced Intelligent Systems, EarlyView.
Augmented Reality (AR) systems serve as a critical interface bridging users with the metaverse. This study explores the application of human factors engineering in metaverse development, specifically investigating the integration of eye‐tracking technology to enhance AR display performance.
Naiqin Zhao, Jiasheng Xiao, Runze Zhu, Hao Zhang   +3 more
wiley   +1 more source

Challenges and Opportunities in Combining Ultrasound and Inductive Coupling for Energy Supply and Bidirectional Data Exchange in Bioelectronics Medicine Implant Networks

Advanced Intelligent Systems, EarlyView.
In this contribution, it is shown that miniaturized nerve stimulation implants can be used in collaborative networks. Inductive links and ultrasound are combined to supply these implants with energy and data; the advantages and disadvantages of each method, as well as safety risks and possibilities for improvement are discussed and the best ...
Benedikt Szabo, Jan Helmerich, Thomas Schaechtle, Ana Belen Amado‐Rey, Stefan Johann Rupitsch, Thomas Stieglitz   +5 more
wiley   +1 more source

Empowering Biomedical Research with Foundation Models in Computational Microscopy: A Systematic Review

Advanced Intelligent Systems, EarlyView.
The integration of foundation models into computational microscopy revolutionizes biomedical research by enhancing imaging resolution, accelerating data analysis, and enabling real‐time biological interpretation. This systematic review critically examines recent advancements, highlights translational challenges, and discusses the transformative ...
Di Ding, Tianliang Yao, Genyi Feng, Xueqing Gao, Xusen Sun, Rong Luo   +5 more
wiley   +1 more source

Widefield wavefront sensor for multidirectional peripheral retinal scanning. [PDF]

Biomed Opt Express, 2023
Pusti D, Degre Kendrick C, Wu Y, Ji Q, Jung HW, Yoon G.   +5 more
europepmc   +1 more source