Light-field imaging device based on a Fresnel lens array with composite microstructures.

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Tác giả: Jun Cai, Chengqun Gui, Su Shen, Wenqing Ye, Weiwei Zheng, Yun Zhou

Ngôn ngữ: eng

Ký hiệu phân loại: 579.325 *Anaerobic g ram-negative straight, curved, and helical rods

Thông tin xuất bản: United States : Optics letters , 2025

Mô tả vật lý:

Bộ sưu tập: NCBI

ID: 89238

A light-field imaging device represents a transformative advancement in imaging technology, enabling high-fidelity capture of scenes with enhanced depth resolution and angular precision. An ultra-thin light-field imaging device based on a Fresnel lens array (FLA) with composite microstructures is presented, capable of producing distinct visual effects, such as morphing, moiré magnifier, and three-dimensional (3D) integral imaging. The device is fabricated through a combination of using gray scale laser direct-writing (LDW) lithography, ultraviolet nanoimprinting lithography (UV-NIL), and selective etching process. The proposed scheme offers exceptional flexibility in both design and manufacturing while effectively addressing the alignment challenge between the micro-focusing element array (MFEA) and the micro pattern array in a conventional light-field device, thus opening up new possibilities, to the best of our knowledge, for the development of innovative optical imaging configuration.
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