Journal ArticleDOI
Variable-focus liquid lens for miniature cameras
Stein Kuiper,Bhw Hendriks +1 more
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TLDR
In this paper, it was demonstrated that two immiscible liquids in a tube form a self-centered lens with a high optical quality, and the motion of the lens during a focusing action was studied by observation through the transparent tube wall.Abstract:
The meniscus between two immiscible liquids can be used as an optical lens. A change in curvature of this meniscus by electrowetting leads to a change in focal distance. It is demonstrated that two liquids in a tube form a self-centered lens with a high optical quality. The motion of the lens during a focusing action was studied by observation through the transparent tube wall. Finally, a miniature achromatic camera module was designed and constructed based on this adjustable lens, showing that it is excellently suited for use in portable applications.read more
Citations
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Journal ArticleDOI
Electrowetting: from basics to applications
TL;DR: In this paper, the authors compare the various approaches used to derive the basic electrowetting equation, which has been shown to be very reliable as long as the applied voltage is not too high.
Journal ArticleDOI
Developing optofluidic technology through the fusion of microfluidics and optics
TL;DR: D devices in which optics and fluidics are used synergistically to synthesize novel functionalities are described, according to three broad categories of interactions: fluid–solid interfaces, purely fluidic interfaces and colloidal suspensions.
Journal ArticleDOI
Integrated optofluidics: A new river of light
TL;DR: Some of the exciting developments so far in miniaturized optofluidic platforms bring fluid and light together and exploit their microscale interaction for a large variety of applications are overviewed.
Journal ArticleDOI
Adaptive liquid microlenses activated by stimuli-responsive hydrogels
TL;DR: This work demonstrates a tunable liquid lens system that allows for autonomous focusing and uses pinned liquid–liquid interfaces to obtain stable devices and realize response times of ten to a few tens of seconds.
Journal ArticleDOI
Fiber-optic fluorescence imaging.
Benjamin A. Flusberg,Eric D. Cocker,Wibool Piyawattanametha,Juergen C. Jung,Eunice L. M. Cheung,Mark J. Schnitzer +5 more
TL;DR: Two new classes of photonic crystal fiber facilitate ultrashort pulse delivery for fiber-optic two-photon fluorescence imaging and an upcoming generation of fluorescence Imaging devices will be based on microfabricated device components.
References
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Book
Principles of Optics
TL;DR: In this paper, the authors discuss various topics about optics, such as geometrical theories, image forming instruments, and optics of metals and crystals, including interference, interferometers, and diffraction.
Principles of Optics
TL;DR: In this article, the authors discuss various topics about optics, such as geometrical theories, image forming instruments, and optics of metals and crystals, including interference, interferometers, and diffraction.
Journal ArticleDOI
Variable focal lens controlled by an external voltage: An application of electrowetting
Bruno Berge,J. Peseux +1 more
TL;DR: Berge and Peseux as discussed by the authors used electrocapillarity in order to change the contact angle of a transparent drop, thus realizing a lens of variable focal length, with a typical response time of 0.03 s and a dissipated power of a few mW.
PatentDOI
Tunable liquid microlens
TL;DR: In this article, a tunable liquid microlens includes an insulating layer, a droplet of a transparent conducting liquid disposed on a first surface of the insulating layers and a plurality of electrodes insulated from the droplet by the layer.
Journal ArticleDOI
Fluid control in multichannel structures by electrocapillary pressure.
TL;DR: Control of fluid motion in three-dimensional structures with thousands of microch channels is demonstrated via an electrocapillary pressure, originating from electrostatic control of the solid/fluid interfacial tension in the microchannels.
Related Papers (5)
Variable focal lens controlled by an external voltage: An application of electrowetting
Bruno Berge,J. Peseux +1 more