Single-step fabrication of refractive microlens arrays

Keyworth, B.P.; Corazza, Dino J.; McMullin, J.N.; Mabbott, L.

doi:10.1364/ao.36.002198

Cited by 34 publications

(12 citation statements)

References 6 publications

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“…Microlenses ranging in diameter from 20 µm to 5 mm have been fabricated with this method [51]. Microlens speeds may be varied for a given diameter over a wide range ( f # = 1.5-10), even within the same array [52].…”

Section: Microjet Printed Microlensesmentioning

confidence: 99%

Comparing glass and plastic refractive microlenses fabricated with different technologies

Ottevaere¹,

Cox²,

Herzig³

et al. 2006

J. Opt. A: Pure Appl. Opt.

165

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We review the most important fabrication techniques for glass and plastic refractive microlenses and we quantitatively characterize in a systematic way the corresponding state-of-the-art microlenses, which we obtained from selected research groups. For all our measurements we rely on three optical instruments: a non-contact optical profiler, a transmission Mach-Zehnder interferometer and a Twyman-Green interferometer. To conclude, we survey and discuss the different fabrication techniques by comparing the geometrical and optical characteristics of the microlenses, the range of materials in which the lenses can be produced, their potential for low-cost fabrication through mass-replication techniques and their suitability for monolithic integration with other micro-optical components.

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Section: Microjet Printed Microlensesmentioning

confidence: 99%

Comparing glass and plastic refractive microlenses fabricated with different technologies

Ottevaere¹,

Cox²,

Herzig³

et al. 2006

J. Opt. A: Pure Appl. Opt.

165

View full text Add to dashboard Cite

show abstract

“…Microjet devices have also been used for producing microlenses, by depositing polymer solutions [12], as well as UV-curable optical adhesives, forming structures from plano-convex to convex-convex configuration [13,14]. Yang et al were able to tune the position and the radius of curvature of similarly deposited lenses by means of electrowetting [15,16].…”

Section: Introductionmentioning

confidence: 99%

Arrays of microlenses with variable focal lengths fabricated by restructuring polymer surfaces with an ink-jet device

Pericet-Cámara¹,

Best²,

Nett³

et al. 2007

Opt. Express

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Abstract:We report of a method for fabricating two-dimensional, regular arrays of polymer microlenses with focal lengths variable between 0.2 and 4.5 mm. We first make concave microlenses by ink-jetting solvent on a polymer substrate with a commercial drop-on-demand device. Solvent evaporation restructures the surface by a series of combined effects, which are discussed. In the second step we obtain convex elastomeric microlenses by casting the template made in the first step. We demonstrate the good optical quality of the microlenses by characterising their surfaces with atomic force microscopy and white light interferometry, and by directly measuring their focal lengths with ad-hoc confocal laser scanning microscopy.

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“…Removing the top patterned electrode resulted in a microlens array on the nonpatterned electrode. In addition, E-beam lithography, (31) ink-jet fabrication, (32,33) a photothermal technique using photosensitive glass, (34) optically induced volume changes in recording materials, (35)(36)(37) hot embossing, (38) laser lithographic fabrication, (39) soft lithography, (40) and a hybrid sol-gel method (41) have all been used to fabricate microlens arrays.…”

Section: Other Methodsmentioning

confidence: 99%

Biomimetic Multiaperture Imaging Systems: A Review

2015

Sensors and Materials

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The miniaturization of the vision system is an important issue in medical and military applications, such as endoscopes and robotic surveillance. Most current efforts in miniaturizing the vision system are focused on downsizing the structure of a conventional system. However, downsizing the conventional vision system has its limits. In this paper, accomplishments in fabricating miniaturized vision systems, such as apposition and superposition compound eyes, are introduced. Techniques mimicking the principles of natural vision are reviewed.

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Single-step fabrication of refractive microlens arrays

Cited by 34 publications

References 6 publications

Comparing glass and plastic refractive microlenses fabricated with different technologies

Comparing glass and plastic refractive microlenses fabricated with different technologies

Arrays of microlenses with variable focal lengths fabricated by restructuring polymer surfaces with an ink-jet device

Biomimetic Multiaperture Imaging Systems: A Review

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