Micro-Optics Fabrication by Ink-Jet Printers

Cox, W. Royall; Chen, Ting; Hayes, Donald J.

doi:10.1364/opn.12.6.000032

Cited by 65 publications

(32 citation statements)

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“…Micro lenses has been successfully printed using an approach similar to ink-jet printing (e.g., see [Cox et al 2001; Cruz-Campa et al 2010], where small droplets are dispersed onto a substrate). However, these technologies generate a tiny lens for each droplet and are not applicable to larger lenses.…”

Section: Light Field Analysismentioning

confidence: 99%

Content-adaptive lenticular prints

et al. 2013

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Lenticular prints are a popular medium for producing automultiscopic glasses-free 3D images. The light field emitted by such prints has a fixed spatial and angular resolution. We increase both perceived angular and spatial resolution by modifying the lenslet array to better match the content of a given light field. Our optimization algorithm analyzes the input light field and computes an optimal lenslet size, shape, and arrangement that best matches the input light field given a set of output parameters. The resulting emitted light field shows higher detail and smoother motion parallax compared to fixed-size lens arrays. We demonstrate our technique using rendered simulations and by 3D printing lens arrays, and we validate our approach in simulation with a user study.

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Section: Light Field Analysismentioning

confidence: 99%

Content-adaptive lenticular prints

et al. 2013

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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]. Refractive microlens configurations which have already been microjet printed range from plano-convex hemispherical, hemi-cylindrical, hemielliptical and square to the convex-convex configuration where two plano-convex lenslets are coaxially printed on opposite sides of a substrate.…”

Section: Microjet Printed Microlensesmentioning

confidence: 99%

“…Microjet printing is therefore a fully automated, data-driven process with which microlenses may be written directly onto optical substrates and components such as diode lasers, optical fibres and waveguides. This process can also be used in other optical application areas such as organic LED displays and optical fibre biochemical sensors [52]. A substrate with different arrays of 700 µm spherical microlenses with polyether thermoset optical plastic as lens material was provided by MicroFab Technologies Inc. (see figure 19).…”

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.

167

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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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“…Droplets of optically clear material form low f/# spherical lenses naturally due to surface tension. They can be melted and cooled as in thermal reflow or printed using inkjet technology and cured with ultra-violet (UV) irradiation [15,16]. Larger lenses can take on aspheric shapes due to the effects of gravity [17,18].…”

Section: Introductionmentioning

confidence: 99%

Rapid fabrication of miniature lens arrays by four-axis single point diamond machining

McCall¹,

Tkaczyk²

2013

Opt. Express

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A novel method for fabricating lens arrays and other nonrotationally symmetric free-form optics is presented. This is a diamond machining technique using 4 controlled axes of motion -X, Y, Z, and C. As in 3-axis diamond micro-milling, a diamond ball endmill is mounted to the work spindle of a 4-axis ultra-precision computer numerical control (CNC) machine. Unlike 3-axis micro-milling, the C-axis is used to hold the cutting edge of the tool in contact with the lens surface for the entire cut. This allows the feed rates to be doubled compared to the current state of the art of micro-milling while producing an optically smooth surface with very low surface form error and exceptionally low radius error.

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Micro-Optics Fabrication by Ink-Jet Printers

Cited by 65 publications

References 0 publications

Content-adaptive lenticular prints

Content-adaptive lenticular prints

Comparing glass and plastic refractive microlenses fabricated with different technologies

Rapid fabrication of miniature lens arrays by four-axis single point diamond machining

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