Rapid fabrication of curved microlens array using the 3D printing mold

Luo, Jiasai; Guo, Yongcai; Wang, Xin

doi:10.1016/j.ijleo.2017.11.197

Cited by 16 publications

(10 citation statements)

References 22 publications

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“…A concave PDMS secondary elastic mold is formed by gas‐assisted deformation, and fixed replication is formed into a curved lens array. The focal length of the lens can be controlled by changing the diameter of the microhole of the mold (Luo, Guo, & Wang, 2018). Although soft lithography allows for large‐area fabrication, it requires preparing the master mold, which adds to the complexity of the fabrication process.…”

Section: Microlenses Fabricating Techniquesmentioning

confidence: 99%

Microlenses arrays: Fabrication, materials, and applications

Cai

Sun

Chu

et al. 2021

Microscopy Res & Technique

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Microlenses have become an indispensable optical element in many optical systems. The advancement of technology has led to a wider variety of microlenses fabrication methods, but these methods suffer from, more or less, some limitations. In this article, we review the manufacturing technology of microlenses from the direct and indirect perspectives. First, we present several fabrication methods and their advantages and disadvantages are discussed. Then, we discuss the commonly used materials for fabricating microlenses and the applications of microlenses in various fields. Finally, we point out the prospects for the future development of microlenses and their fabrication methods.

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Section: Microlenses Fabricating Techniquesmentioning

confidence: 99%

Microlenses arrays: Fabrication, materials, and applications

Cai

Sun

Chu

et al. 2021

Microscopy Res & Technique

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“…Studies and production of biomimetic eyes have been undertaken [54], showing the high interest in this kind of sensors. However, only during the last years was AM able to print micro-optics [55,56] and a project to produce a biomimetic eye entirely through AM is currently in progress [57]. A last kind of biomimetic sensor developed with AM is an acoustic device inspired from a locust [58] thanks to the new possibility to use piezoelectric materials.…”

Section: Bioinspired Sensorsmentioning

confidence: 99%

Additive manufacturing: state of the art and potential for insect science

Jaffar-Bandjee

Casas

Krijnen

2018

Current Opinion in Insect Science

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Additive Manufacturing has become an efficient tool to study insect-inspired biomimetic solutions. Indeed, it can build objects with intricate 3D-shapes and use materials with specific properties, such as soft materials. From biomaterials to biostructures or biosensors, Additive Manufacturing allows more possibilities in terms of design and functions. Reciprocally, insect-inspired technological solutions can be implemented to enhance Additive Manufacturing processes providing for example biocompatible structures that can successfully host living cells. We believe that, thanks to its continuous progress, Additive Manufacturing will play a growing role in the development of insect-inspired solutions.

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“…However, a common feature leaded by the planar substrate of such compound eye arrays is the lack of FOV. To solve this issue, on the basics of such fabrication methods, several supplementary methods such as the thermomechanical deformation [13], [16] or the negative pressure [17], [18] were adopted to bend the substrate for the purposes of changing the orientation of MLA and expanding the FOV. Nevertheless, the fabrication process of such elements with enlarged FOV requires complicated experiment setups and rigorous environments controls.…”

Section: Introductionmentioning

confidence: 99%

Dose-Modulated Maskless Lithography for the Efficient Fabrication of Compound Eyes With Enlarged Field-of-View

Liu

Deng

et al. 2019

IEEE Photonics J.

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In this paper, a method of dose-modulated maskless lithography (DMML) with high efficiency for the fabrication of a special compound-eyes array with enlarged field-ofview is proposed. Before the fabrication process, practical measurements were primarily conducted to quantify the dose-modulated effect. Next, a digital gray pattern, generated according to the required exposure dose distribution of the design structure, was adopted as a virtual mask to modulate the exposure depth point-by-point. In this way, the whole exposure process requires only one-step. Besides, because the DMML uses sequential gray-levels to modulate the exposure depth, the fabricated structure has a more continuous profile surface. Combined with the thermal reflow process, and the pattern reversion process, the compound eyes array was transferred to the planar polydimethylsiloxane films with high quality. Subsequent tests reveal that the physical performance of fabricated compound eyes array, including the surface profile and the rotated orientation, has a good agreement with our design.

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Rapid fabrication of curved microlens array using the 3D printing mold

Cited by 16 publications

References 22 publications

Microlenses arrays: Fabrication, materials, and applications

Microlenses arrays: Fabrication, materials, and applications

Additive manufacturing: state of the art and potential for insect science

Dose-Modulated Maskless Lithography for the Efficient Fabrication of Compound Eyes With Enlarged Field-of-View

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