Stray light analysis and design optimization of geometrical waveguide
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Yao Zhou
Yao Zhou is currently pursuing the Ph.D. degree at University College Dublin. Her research interests include optical design and manufacturing of geometrical waveguide and relevant advanced optical see-through display system.
Jufan Zhang is the research fellow of University College Dublin. He mainly focuses on the research of micro/nano manufacturing, design and fabrication of advanced optical systems, micro/nano functional surface textures. He is applying the research outcomes of advanced optical solutions on various biomedical and optical applications and was awarded several major funding.
Fengzhou Fang is a joint professor of Centre of Micro/Nano Manufacturing Technology (MNMT) at Tianjin University and University College Dublin. He has conducted both fundamental studies and application development in the areas of micro/nano machining, optical freeform design and manufacturing, and ultra-precision machining and measurement benefiting a variety of industries in medical devices, bio-implants, optics and mold sectors.
Abstract
Waveguide technology has great prospects of development in optical see-through near-eye displays with larger field of view, lower thickness and lighter weight than other conventional optical technologies. However, the stray light is usually inevitable in current optical design and manufacturing, causing a poor imaging quality. In this paper, the principle and structures of stray light generation are analyzed, and the causes are discussed by non-sequential ray-tracing with mass precision calculation. From the ray-tracing, the suppression of stray light by optimizing design and manufacturing are achieved. A 2 mm-thickness geometrical waveguide with partially reflective mirror array is designed. The field of view of the optimized geometrical waveguide reaches 47° with 10 mm at exit pupil diameter and 20 mm at eye relief.
Funding source: Science Foundation Ireland
Award Identifier / Grant number: 15/RP/B3208
Funding source: State Administration of Foreign Experts Affairs
Funding source: Ministry of Education of the People’s Republic of China
Award Identifier / Grant number: B07014
About the authors
Yao Zhou is currently pursuing the Ph.D. degree at University College Dublin. Her research interests include optical design and manufacturing of geometrical waveguide and relevant advanced optical see-through display system.
Jufan Zhang is the research fellow of University College Dublin. He mainly focuses on the research of micro/nano manufacturing, design and fabrication of advanced optical systems, micro/nano functional surface textures. He is applying the research outcomes of advanced optical solutions on various biomedical and optical applications and was awarded several major funding.
Fengzhou Fang is a joint professor of Centre of Micro/Nano Manufacturing Technology (MNMT) at Tianjin University and University College Dublin. He has conducted both fundamental studies and application development in the areas of micro/nano machining, optical freeform design and manufacturing, and ultra-precision machining and measurement benefiting a variety of industries in medical devices, bio-implants, optics and mold sectors.
Acknowledgments
The authors would like to thank the financial support from the Science Foundation Ireland (SFI) (No. 15/RP/B3208) and the “111” Project by the State Administration of Foreign Experts Affairs and the Ministry of Education of China (No. B07014).
Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
Research funding: None declared.
Conflict of interest statement: The authors declare no conflicts of interest regarding this article.
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Articles in the same Issue
- Frontmatter
- Editorial
- From the publisher Reviewer recognition and publisher’s note 2021
- Community
- News
- Views
- High quality diffractive optical elements (DOEs) using SMILE imprint technique
- Topical Issue: Diffractive Optics; Guest Editor: Reinhard Voelkel
- Editorial
- Diffractive optics
- Review article
- Diamond diffractive optics—recent progress and perspectives
- Research articles
- Narrowband transmission filters based on resonant waveguide gratings and conformal dielectric-plasmonic coatings
- Inverse design of diffractive optical elements using step-transition perturbation approach
- Diffractive optics based automotive lighting system
- Multifunctional materials for lean processing of waferscale optics
- Research article
- Stray light analysis and design optimization of geometrical waveguide
