A Meniscus Multifocusing Compound Eye Camera Based on Negative Pressure Forming Technology

Liu, Yongshun; Dong, Jing; Yu, Yongjian; Xing, Yi; Shu, Fengfeng; Peng, Lanxin; Wu, Yihui

doi:10.3390/mi14020420

Cited by 3 publications

(3 citation statements)

References 51 publications

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“…By using flexible electronic manufacturing technology, the sensing unit of the detector is matched to the sub-eye one by one, and the information like Mosaic with low sampling rate is obtained. Others use a common planar image sensor as sensing device [15][16][17][18][19]. However, because it does not match the curved optical system [20], it is necessary to add complex relay system or waveguide system [15,16,21].…”

Section: Introductionmentioning

confidence: 99%

A planar compound eye based microsystem for high precision 3D perception

Zhang,

Zhan,

Liu

et al. 2024

PhotoniX

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Three-dimensional (3D) panoramic vision system plays a fundamental role in the biological perception of external information, and naturally becomes a key system for embodied intelligence to interact with the outside world. A binocular vision system with rotating eyeball has long baseline, large volume and weak sensitivity to motion. A compound eye system has small volume, high sensitivity to motion but poor precision. Here, a planar compound eye microsystem for high precision 3D perception is proposed by combining semiconductor manufacturing process and biological compound eye structure. Using a semiconductor planar image sensor as the sensing unit, a space-coded planar sub-eye array is designed and its sub field of view (FOV) is dynamically mapped to the image sensor. It solves the problem that a traditional vision system cannot simultaneously accommodate wide FOV with long focal length and high sensitivity to motion with high resolution. The parallax among different sub-eyes enables the system to accurately perceive and dynamically track the 3D position of the target in the range of 10 m and within the FOV of 120 ° in a single compound eye. This system is of great significance in the fields of intelligent robot and intelligent perception.

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Section: Introductionmentioning

confidence: 99%

A planar compound eye based microsystem for high precision 3D perception

Zhang,

Zhan,

Liu

et al. 2024

PhotoniX

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“…Plastics, being versatile and widely used, can often contain harmful chemicals that have been linked to adverse health effects, including hormone disruption, cancer, birth abnormalities, and developmental issues. It is intended to provide an advanced and highly sensitive sensor using PCL technology [ 37–45 ] to accurately detect and quantify the presence of these harmful chemical compounds within plastic products. This sensor aims to provide a reliable and efficient method for assessing the safety of plastic items, ranging from containers to children's toys, by rapidly identifying and measuring the concentration of hazardous substances.…”

Section: Introductionmentioning

confidence: 99%

Detection of Harmful Chemical Compounds in Plastic Products Using a High‐Sensitivity Photonic Crystal‐Based Sensor

Taya,

Srour,

Almawgani

et al. 2023

Physica Status Solidi (a)

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The use of plastics can be dangerous due to the numerous industrial chemicals they contain. Di(2‐ethylhexyl) phthalate (DEHP), bisphenol A (BPA), and bisphenol S (BPS) are three detrimental organic chemicals that are used in the plastic industry. In this work, a highly sensitive photonic crystal (PCL) sensor is theoretically proposed and numerically simulated as a detector for DEHP, BPA, and BPS organic chemicals. The proposed PCL is a 1D that has the structure (GaAs/Si3N4/TiN)N/cavity layer/(GaAs/Si3N4/TiN)N, where N is the number of unit cells (UCs). The DEHP, BPA, and BPS analytes are assumed to be separately infiltrated into the cavity layer between two equal numbers of the UCs. The transmission spectra of the PCL are studied using the transfer matrix (TrMx) technique. The most important performance parameter is sensitivity so we have focused on it. A considerable sensitivity enhancement is obtained by raising the defect layer thickness and incidence angle. High sensitivities of 2350.51, 2168.45, and 2042.08 nm RIU−1 are obtained for DEHP, BPA, and BPS, respectively. In the results obtained, the way can be paved for a simple technique to detect chemical compounds.

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“…The resolution of the prepared compound eye imaging system has been steadily increasing as scientific cognition and processing technology [ 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 ] advance. At the moment, artificial compound eyes are facing numerous challenges, and researchers are constantly investigating new technologies and materials in order to apply artificial compound eyes to more scenes [ 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 ] and solve problems that traditional optical systems cannot. The current research trend focuses on high-resolution compound eye lenses [ 24 , 25 , 26 ].…”

Section: Introductionmentioning

confidence: 99%

Double-Glued Multi-Focal Bionic Compound Eye Camera

et al. 2023

Self Cite

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Compound eye cameras are a vital component of bionics. Compound eye lenses are currently used in light field cameras, monitoring imaging, medical endoscopes, and other fields. However, the resolution of the compound eye lens is still low at the moment, which has an impact on the application scene. Photolithography and negative pressure molding were used to create a double-glued multi-focal bionic compound eye camera in this study. The compound eye camera has 83 microlenses, with ommatidium diameters ranging from 400 μm to 660 μm, and a 92.3 degree field-of-view angle. The double-gluing structure significantly improves the optical performance of the compound eye lens, and the spatial resolution of the ommatidium is 57.00 lp mm−1. Additionally, the measurement of speed is investigated. This double-glue compound eye camera has numerous potential applications in the military, machine vision, and other fields.

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A Meniscus Multifocusing Compound Eye Camera Based on Negative Pressure Forming Technology

Cited by 3 publications

References 51 publications

A planar compound eye based microsystem for high precision 3D perception

A planar compound eye based microsystem for high precision 3D perception

Detection of Harmful Chemical Compounds in Plastic Products Using a High‐Sensitivity Photonic Crystal‐Based Sensor

Double-Glued Multi-Focal Bionic Compound Eye Camera

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