共查询到20条相似文献,搜索用时 15 毫秒
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Zhuo‐Chen Ma Xin‐Yu Hu Yong‐Lai Zhang Xue‐Qing Liu Zhi‐Shan Hou Li‐Gang Niu Lin Zhu Bing Han Qi‐Dai Chen Hong‐Bo Sun 《Advanced functional materials》2019,29(38)
Compound eyes are natural multiaperture optical imaging systems and have substantial potential in the field of modern optics. However, both natural and artificial compound eyes are composed of ommatidia with fixed focal lengths, and thus incapable of variable‐focus imaging. In this study, inspired by the tunable crystalline lens of human eyes, smart stimuli‐responsive compound eyes based on the bovine serum album (BSA) protein are fabricated via femtosecond laser direct writing. Due to the swelling and shrinking effect of BSA under different pH conditions, a tunable field of view (FOV, 35°–80°) and variable focal length of ommatidia are achieved. In addition to the direct prototyping of an entire protein‐based compound eye, the ability to flexibly integrate the smart protein ommatidia with a conventional optical lens (an SU‐8 lens in this study) to form a composite compound eye is shown. The composite compound eye achieves nearly 400% of focal length tuning at a fixed FOV. It is anticipated that femtosecond laser fabrication and the integration of smart protein‐based compound eyes may emerge as an enabler for fabricating miniature tunable imaging systems. 相似文献
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Zefang Deng Feng Chen Qing Yang Hao Bian Guangqing Du Jiale Yong Chao Shan Xun Hou 《Advanced functional materials》2016,26(12):1995-2001
The natural compound eye is a striking imaging device with a wealth of fascinating optical features such as a wide field of view (FOV), low aberration, and high sensitivity. Dragonflies in particular possess large, sophisticated compound eyes that exhibit high resolving power and information‐processing capacity. Here, a large‐scale artificial compound eye inspired by the unique designs of natural counterparts is presented. The artificial compound eye is created by a high‐efficiency strategy that combines single‐pulse femtosecond laser wet etching with thermal embossing. These eyes have a macrobase diameter of 5 mm and ≈30 000 close‐packed ommatidia with an average diameter of 24.5 μm. Moreover, the optical properties of the artificial compound eyes are investigated; the results confirm that the eye demonstrates advanced imaging quality, an exceptionally wide FOV of up to 140°, and low aberration. 相似文献
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Alexey Eremin Ralf Stannarius Susanne Klein Jana Heuer Robert M. Richardson 《Advanced functional materials》2011,21(3):402-402
An unusual electro‐optical behavior of colloidal suspensions of dichroic, elongated (rod‐shaped) pigment particles is reported. These suspensions exhibit nematic liquid crystal order at low volume fraction of the suspended particles (<15 wt%) and show a strong electric and optical response to an external electric field. Additionally, the characteristics of the optical response can be reversibly manipulated by illuminating the sample with light in its absorption band. The suspensions show a number of interesting phenomena like homeotropic‐planar orientational transitions and light‐induced pattern formation. 相似文献
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Bioimaging: An Integrated Multifunctional Nanoplatform for Deep‐Tissue Dual‐Mode Imaging (Adv. Funct. Mater. 11/2018) 下载免费PDF全文
Fan Yang Artiom Skripka Antonio Benayas Xianke Dong Sung Hwa Hong Fuqiang Ren Jung Kwon Oh Xinyu Liu Fiorenzo Vetrone Dongling Ma 《Advanced functional materials》2018,28(11)
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