Wide-Field-of-View Trans-Reflective RGB-Achromatic Metalens for Augmented Reality
In recent years, various solutions for augmented reality (AR) head-mounted displays have been proposed. In order to achieve the dual functions of reflective focusing on virtual images and transparency to the real world, the optical design of AR eyepieces is particularly critical. Designs based on tr...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-05-01
|
| Series: | Photonics |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2304-6732/10/5/590 |
| _version_ | 1797598574085668864 |
|---|---|
| author | Lingcong Luo Zhengyang Wang Juntao Li Haowen Liang |
| author_facet | Lingcong Luo Zhengyang Wang Juntao Li Haowen Liang |
| author_sort | Lingcong Luo |
| collection | DOAJ |
| description | In recent years, various solutions for augmented reality (AR) head-mounted displays have been proposed. In order to achieve the dual functions of reflective focusing on virtual images and transparency to the real world, the optical design of AR eyepieces is particularly critical. Designs based on traditional optics still face the problems of huge volume and a limited field of view. Due to their extraordinary phase control ability, portability, easy integration, and other advantages, metalenses have triggered extensive research and found many applications, including providing an innovative solution for AR eyepieces. In this work, we propose a single-layer trans-reflective RGB-achromatic metalens with a large field of view of 90°. The metalens reflects the oblique incident virtual image while maintaining balanced transparency of real-world light. Through simulation, the ability of the metalens to focus light at the wavelengths of 488 nm, 532 nm, and 633 nm with the same focal length and balanced efficiency is validated. Moreover, the metalens is polarization-insensitive to the incident light, thus allowing the elimination of the polarization modulation components, which greatly simplifies the optical structure. Our work demonstrates the great potential of metalenses for AR eyepiece applications. |
| first_indexed | 2024-03-11T03:23:05Z |
| format | Article |
| id | doaj.art-1620ecdc556d4d3dbb7acca78102ae8e |
| institution | Directory Open Access Journal |
| issn | 2304-6732 |
| language | English |
| last_indexed | 2024-03-11T03:23:05Z |
| publishDate | 2023-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Photonics |
| spelling | doaj.art-1620ecdc556d4d3dbb7acca78102ae8e2023-11-18T02:54:54ZengMDPI AGPhotonics2304-67322023-05-0110559010.3390/photonics10050590Wide-Field-of-View Trans-Reflective RGB-Achromatic Metalens for Augmented RealityLingcong Luo0Zhengyang Wang1Juntao Li2Haowen Liang3State Key Laboratory of Optoelectronic Materials and Technologies, School of Physics, Sun Yat-Sen University, Guangzhou 510275, ChinaState Key Laboratory of Optoelectronic Materials and Technologies, School of Physics, Sun Yat-Sen University, Guangzhou 510275, ChinaState Key Laboratory of Optoelectronic Materials and Technologies, School of Physics, Sun Yat-Sen University, Guangzhou 510275, ChinaState Key Laboratory of Optoelectronic Materials and Technologies, School of Physics, Sun Yat-Sen University, Guangzhou 510275, ChinaIn recent years, various solutions for augmented reality (AR) head-mounted displays have been proposed. In order to achieve the dual functions of reflective focusing on virtual images and transparency to the real world, the optical design of AR eyepieces is particularly critical. Designs based on traditional optics still face the problems of huge volume and a limited field of view. Due to their extraordinary phase control ability, portability, easy integration, and other advantages, metalenses have triggered extensive research and found many applications, including providing an innovative solution for AR eyepieces. In this work, we propose a single-layer trans-reflective RGB-achromatic metalens with a large field of view of 90°. The metalens reflects the oblique incident virtual image while maintaining balanced transparency of real-world light. Through simulation, the ability of the metalens to focus light at the wavelengths of 488 nm, 532 nm, and 633 nm with the same focal length and balanced efficiency is validated. Moreover, the metalens is polarization-insensitive to the incident light, thus allowing the elimination of the polarization modulation components, which greatly simplifies the optical structure. Our work demonstrates the great potential of metalenses for AR eyepiece applications.https://www.mdpi.com/2304-6732/10/5/590trans-reflective metalensRGB-achromaticAR eyepiece |
| spellingShingle | Lingcong Luo Zhengyang Wang Juntao Li Haowen Liang Wide-Field-of-View Trans-Reflective RGB-Achromatic Metalens for Augmented Reality Photonics trans-reflective metalens RGB-achromatic AR eyepiece |
| title | Wide-Field-of-View Trans-Reflective RGB-Achromatic Metalens for Augmented Reality |
| title_full | Wide-Field-of-View Trans-Reflective RGB-Achromatic Metalens for Augmented Reality |
| title_fullStr | Wide-Field-of-View Trans-Reflective RGB-Achromatic Metalens for Augmented Reality |
| title_full_unstemmed | Wide-Field-of-View Trans-Reflective RGB-Achromatic Metalens for Augmented Reality |
| title_short | Wide-Field-of-View Trans-Reflective RGB-Achromatic Metalens for Augmented Reality |
| title_sort | wide field of view trans reflective rgb achromatic metalens for augmented reality |
| topic | trans-reflective metalens RGB-achromatic AR eyepiece |
| url | https://www.mdpi.com/2304-6732/10/5/590 |
| work_keys_str_mv | AT lingcongluo widefieldofviewtransreflectivergbachromaticmetalensforaugmentedreality AT zhengyangwang widefieldofviewtransreflectivergbachromaticmetalensforaugmentedreality AT juntaoli widefieldofviewtransreflectivergbachromaticmetalensforaugmentedreality AT haowenliang widefieldofviewtransreflectivergbachromaticmetalensforaugmentedreality |