Reducing defocus aberration of a compound and human hybrid eye using liquid lens

Cheng, Yang; Cao, Jie; Meng, Lingtong; Wang, Zihan; Zhang, Kaiyu; Ning, Yan; Hao, Qun

doi:10.1364/ao.57.001679

Cited by 11 publications

(7 citation statements)

References 40 publications

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“…Our previous work designed a compound and human hybrid eye with a micro-lens array for 3D imaging [ 28 , 35 ]. Therefore, the proposed HBIS can also be used for 3D imaging with a large FOV and foveal ratio; this will be studied by our team in the future.…”

Section: Discussionmentioning

confidence: 99%

A Hybrid Bionic Image Sensor Achieving FOV Extension and Foveated Imaging

Hao

Wang

Cao

et al. 2018

Sensors

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Based on bionic compound eye and human foveated imaging mechanisms, a hybrid bionic image sensor (HBIS) is proposed in this paper to extend the field of view (FOV) with high resolution. First, the hybrid bionic imaging model was developed and the structure parameters of the HBIS were deduced. Second, the properties of the HBIS were simulated, including FOV extension, super-resolution imaging, foveal ratio and so on. Third, a prototype of the HBIS was developed to validate the theory. Imaging experiments were carried out, and the results are in accordance with the simulations, proving the potential of the HBIS for large FOV and high-resolution imaging with low cost.

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Section: Discussionmentioning

confidence: 99%

A Hybrid Bionic Image Sensor Achieving FOV Extension and Foveated Imaging

Hao

Wang

Cao

et al. 2018

Sensors

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“…The adaptive liquid lens with tunable optical powers was a good option to address the aforementioned limitations of conventional optical zoom imaging systems [40][41][42][43][44]. Unlike solid lens counterparts, adaptive liquid lenses can implement tunable optical power without displacing the lens bodies.…”

Section: Introductionmentioning

confidence: 99%

Optical zoom imaging systems using adaptive liquid lenses

et al. 2021

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An optical zoom imaging system that can vary the magnification factor without displacing the object and the image plane has been widely used. Nonetheless, conventional optical zoom imaging systems suffer from slow response, complicated configuration, vulnerability to misalignment during zoom operation, and are incompatible with miniaturized applications. This review article focuses on state-of-the-art research on novel optical zoom imaging systems that use adaptive liquid lenses. From the aspect of the configuration, according to the number of adaptive liquid lenses, we broadly divide the current optical zoom imaging systems using adaptive liquid lenses into two configurations: multiple adaptive liquid lenses, and a single adaptive liquid lens. The principles and configurations of these optical zoom imaging systems are introduced and represented. Three different working principles of the adaptive liquid lens (liquid crystal, polymer elastic membrane, and electrowetting effect) adopted in the optical zoom imaging systems are reviewed. Some representative applications of optical zoom imaging systems using adaptive liquid lenses are introduced. The opportunities and challenges of the optical zoom imaging systems using adaptive liquid lenses are also discussed. This review aims to provide a snapshot of the current state of this research field with the aim to attract more attention to put forward the development of the next-generation optical zoom imaging systems.

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“…Short-term visual task in various lighting environments, adjusting ability of ciliary muscle presents different, resulting to different variations of lens shapes. In a human eye measurement, adjusting ability of ciliary muscle can be represented by the accommodation (ACC) [23]- [25], and the change of crystalline lens could be effectively indicated by the high order aberrations (HOAs) [26]- [28]. Consequently, fatigue perceptions of human eye are always related to the ocular physiological parameters of both ACC and HOAs.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Light Distribution of LED Luminaire on Human Ocular Physiological Characteristics

et al. 2019

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Light-emitting Diode (LED) has been considered as one of the new generation lighting sources with several merits such as high efficiency, high reliability, long lifespan, high-speed response, and energy saving. The optical performances of an LED luminaire, such as illuminance, luminance, correlated color temperature, and spectra power distribution, determine the lighting environment which can affect the human ocular physiological characteristics. To investigate the effect of optical performances on human vision, previous studies have assessed the subjective perception based on questionnaires. In this paper, we propose a novel method based on the aberrations and accommodations data from 150 human factor measurements on a total of 25 participants. The results show that: 1) optical performances of the LED luminaire have an influence on ocular physiological characteristics during the visual task duration, which can be quantized by the variations of physiological parameters; 2) the desk illuminance and light distribution curve are selected in this study as the optical parameters. The variations of ocular physiological characteristics reach the minimum values when the desk illuminance is 550 lux and the light distribution curve is large beam angle; and 3) ocular physiological characteristics are more sensitive to the light spatial distribution compared to the light quality. Thus, the proposed assessment method based on variations of ocular physiological characteristics in this paper is promising as one of the guidelines for the design and optimization of the LED luminaires. INDEX TERMS LED luminaire, optical performance, human vision, ocular physiological characteristics, lighting environment assessment.

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Reducing defocus aberration of a compound and human hybrid eye using liquid lens

Cited by 11 publications

References 40 publications

A Hybrid Bionic Image Sensor Achieving FOV Extension and Foveated Imaging

A Hybrid Bionic Image Sensor Achieving FOV Extension and Foveated Imaging

Optical zoom imaging systems using adaptive liquid lenses

The Effect of Light Distribution of LED Luminaire on Human Ocular Physiological Characteristics

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