Electrically Tunable Liquid Crystal Lens with Varifocal Capability DOI

Zhuxuan Wei,

Mengqi He,

Shixiao Li

et al.

ACS Applied Optical Materials, Journal Year: 2024, Volume and Issue: 2(10), P. 2175 - 2183

Published: Oct. 10, 2024

This article presents the design, fabrication, characterization, and performance evaluation of a varifocal liquid crystal (LC) lens with an inhomogeneous cell gap. The prototype employs LC compound high birefringence features optimized multilayered glass-electrode-LC configuration device's thickness under 1 mm, demonstrating remarkable power tunability range −0.44 to −2.84 diopter (D) low voltage operation. Also, we introduce wireless powering method enhance mobility durability device. ultrathin smart design eliminates need for mechanical actuation complex control systems, offering significant potential applications in next generation solution optical devices such as detachable lenses, contact augmented reality systems.

Language: Английский

Recent Applications of Optical Elements in Augmented and Virtual Reality Displays: A Review DOI Creative Commons
Myeong-Ho Choi, Woongseob Han,

Kyosik Min

et al.

ACS Applied Optical Materials, Journal Year: 2024, Volume and Issue: 2(7), P. 1247 - 1268

Published: May 2, 2024

Augmented reality (AR) and virtual (VR) are emerging as a next-generation display platform, surpassing conventional flat panel displays. The AR/VR technologies garnering considerable attention from both industry academia they provide immersive user experiences smooth interaction between the real digital worlds. current displays, however, still face several challenges including limited field of view, small eye-box, conflict vergence accommodation, bulky form factor, heavy weight. This paper aims to comprehensive view optical elements emphasizing how enhance performance experience Various techniques explained in following two principal aspects: displays based on (1) holographic metasurfaces, (2) combined usage elements. In each section, characteristics principles components briefly explained. Then, their recent applications addressing limitations introduced.

Language: Английский

Citations

10
Varifocal Near-Eye Display with Extended Eyebox Using Dual Slit-Mirror Array DOI

Jiyun Han,

Woongseob Han, Jae‐Hyeung Park

et al.

Published: Jan. 1, 2025

Language: Английский

Citations

0
Color Correction for Occlusion-Capable Optical See-Through Head-Mounted Displays by Using Phase-Modulation DOI
Yan Zhang,

Shulin Hong,

W. Qian

et al.

Published: March 8, 2025

Language: Английский

Citations

0
Depth‐enhanced light field camera system based on focus‐tunable geometric phase lens module DOI Creative Commons
Hyeonsu Jeong, Munkh‐Uchral Erdenebat,

Jin‐Hyeok Seo

et al.

Journal of the Society for Information Display, Journal Year: 2025, Volume and Issue: unknown

Published: April 5, 2025

Abstract We propose an active‐switching light‐field (LF) camera system that significantly extends the measurable depth range over conventional passive‐optics‐based LF systems by integrating a stacked geometric phase lens (GPL) module in compact design. During elemental image acquisition and rendering, chromatic aberration focus‐tunable GPL is compensated adjusting reconstruction magnification for each color channel. Additionally, optimal operation sets are selected based on color‐dependent depth‐of‐focus conditions. These optimizations enable proposed GPL‐based to achieve full‐color, depth‐enhanced imaging while mitigating typical trade‐off between spatial resolution of field limitations.

Language: Английский

Citations

0
Full‐color holographic image capture: Cholesteric liquid crystal circular polarizer combined with geometric phase lens reduces noise in self‐interference incoherent digital holography DOI Creative Commons

Jin‐Hyeok Seo,

Jae‐Won Lee,

Jung‐Yeop Shin

et al.

Journal of the Society for Information Display, Journal Year: 2025, Volume and Issue: unknown

Published: April 10, 2025

Abstract We reduced image noise in broadband full‐color holographic capture a compact self‐interference incoherent digital holography (SIDH) system by combining cholesteric liquid crystal (CLC) circular polarizer with quarter‐waveplate‐based geometric phase lens (QW‐GPL). To address chromatic wavefront issues commonly found conventional half‐waveplate‐based SIDH systems, we explore incorporating GPL In particular, resolve angular polarization‐dependent QW‐GPL modulation utilizing circularly polarized Bragg reflection of CLC as polarization filter. This approach ensures an ideal beam state across wide range incident angles and wavelengths. By effectively mitigating distortion QW‐GPL, our method significantly improves the quality reconstructed images form factor, demonstrated entropy values.

Language: Английский

Citations

0
Varifocal near-eye display with extended eyebox using dual slit-mirror array DOI Creative Commons

Jiyun Han,

Woongseob Han, Jae‐Hyeung Park

et al.

Optics & Laser Technology, Journal Year: 2025, Volume and Issue: 189, P. 113053 - 113053

Published: May 9, 2025

Language: Английский

Citations

0
Electrically Tunable Liquid Crystal Lens with Varifocal Capability DOI

Zhuxuan Wei,

Mengqi He,

Shixiao Li

et al.

ACS Applied Optical Materials, Journal Year: 2024, Volume and Issue: 2(10), P. 2175 - 2183

Published: Oct. 10, 2024

This article presents the design, fabrication, characterization, and performance evaluation of a varifocal liquid crystal (LC) lens with an inhomogeneous cell gap. The prototype employs LC compound high birefringence features optimized multilayered glass-electrode-LC configuration device's thickness under 1 mm, demonstrating remarkable power tunability range −0.44 to −2.84 diopter (D) low voltage operation. Also, we introduce wireless powering method enhance mobility durability device. ultrathin smart design eliminates need for mechanical actuation complex control systems, offering significant potential applications in next generation solution optical devices such as detachable lenses, contact augmented reality systems.

Language: Английский

Citations

0