Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Confocal Fluorescence Microscopy01:16

Confocal Fluorescence Microscopy

Confocal microscopy is an advanced microscopic technique. The prime advantage of the confocal microscope over other microscopy techniques is its ability to block the out-of-focus light from the illuminated samples using pinholes. It is widely used with fluorescence optics to obtain high-resolution, sharp contrast images. Unlike optical microscopes, confocal microscopes use a focused beam of light laser to scan the entire sample surface at different z-planes. These microscopes are, therefore,...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Cold Agglutinin Disease-Like Genetic Signatures in Lymphoplasmacytic Lymphoma-Like Cases Challenge the WHO Fifth Edition Classification.

EJHaem·2026
Same author

Liquid-crystal neutral density filter that can be tuned using ultrasound.

Applied optics·2026
Same author

Serum Syndecan-1: a potent prognostic biomarker for transplant outcomes.

Frontiers in medicine·2026
Same author

MitoSafe hypothesis: safeguarding mitochondrial morphology and innate immunity.

Trends in cell biology·2026
Same author

Epidemiology and outcomes in patients with out-of-hospital cardiac arrest without coma after return of spontaneous circulation: a multicentre cohort study.

Emergency medicine journal : EMJ·2026
Same author

Melting temperature mapping for rapid pathogen identification in neonatal bloodstream infections: A prospective study.

Pediatrics international : official journal of the Japan Pediatric Society·2026

Related Experiment Video

Updated: May 13, 2026

Induction of Microstreaming by Nonspherical Bubble Oscillations in an Acoustic Levitation System
08:19

Induction of Microstreaming by Nonspherical Bubble Oscillations in an Acoustic Levitation System

Published on: May 9, 2021

Three-dimensional variable-focus liquid lens using acoustic radiation force.

Daisuke Koyama1, Ryoichi Isago, Kentaro Nakamura

  • 1Precision and Intelligence Laboratory, Tokyo Institute of Technology, Yokohama, Japan. dkoyama@sonic.pi.titech.ac.jp

IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
|February 28, 2013
PubMed
Summary
This summary is machine-generated.

This study presents a compact, fast-response liquid lens with no moving parts, utilizing acoustic radiation force for variable focus control in three dimensions. The innovative design enables rapid 1 kHz focus scanning for advanced optical applications.

More Related Videos

Three-dimensional Optical-resolution Photoacoustic Microscopy
08:31

Three-dimensional Optical-resolution Photoacoustic Microscopy

Published on: May 3, 2011

Fabrication and Operation of Acoustofluidic Devices Supporting Bulk Acoustic Standing Waves for Sheathless Focusing of Particles
10:14

Fabrication and Operation of Acoustofluidic Devices Supporting Bulk Acoustic Standing Waves for Sheathless Focusing of Particles

Published on: March 6, 2016

Related Experiment Videos

Last Updated: May 13, 2026

Induction of Microstreaming by Nonspherical Bubble Oscillations in an Acoustic Levitation System
08:19

Induction of Microstreaming by Nonspherical Bubble Oscillations in an Acoustic Levitation System

Published on: May 9, 2021

Three-dimensional Optical-resolution Photoacoustic Microscopy
08:31

Three-dimensional Optical-resolution Photoacoustic Microscopy

Published on: May 3, 2011

Fabrication and Operation of Acoustofluidic Devices Supporting Bulk Acoustic Standing Waves for Sheathless Focusing of Particles
10:14

Fabrication and Operation of Acoustofluidic Devices Supporting Bulk Acoustic Standing Waves for Sheathless Focusing of Particles

Published on: March 6, 2016

Area of Science:

  • Optics and Photonics
  • Materials Science
  • Acoustics

Background:

  • Conventional mechanical lenses are bulky and slow, limiting applications requiring rapid focus adjustment.
  • Developing compact, high-speed variable-focus lenses is crucial for advanced imaging and optical systems.
  • Acoustic radiation force offers a promising, non-contact method for manipulating fluid interfaces to create tunable lenses.

Purpose of the Study:

  • To design and fabricate a novel liquid lens with dynamically controllable focal points in axial and radial directions.
  • To investigate the use of acoustic radiation force for precise deformation of a liquid interface for variable focusing.
  • To demonstrate rapid focus scanning capabilities for potential high-frequency optical applications.

Main Methods:

  • Fabrication of a liquid lens using immiscible water and silicone oil within an acrylic cell, actuated by a piezoelectric transducer.
  • Utilizing optical coherence tomography to observe the deformation of the oil-water interface.
  • Employing ray-tracing simulations to analyze laser beam paths and focal point variations.
  • Investigating dynamic performance using high-speed camera and amplitude-modulation (AM) signals for focus scanning.

Main Results:

  • The liquid lens demonstrated a variable focal point controllable in three dimensions by adjusting input voltages to piezoelectric transducer electrodes.
  • Acoustic radiation force successfully deformed the oil-water interface, functioning as a tunable lens surface.
  • Rapid focus scanning at 1 kHz was achieved using amplitude-modulation (AM) signals, with radial displacement up to 3° at 45 V and 1.9 MHz.
  • The lens exhibited compact size and faster response compared to traditional mechanical lenses.

Conclusions:

  • The developed liquid lens, actuated by acoustic radiation force, offers a viable alternative to conventional lenses with enhanced speed and compactness.
  • The ability to dynamically control focal points in multiple directions opens possibilities for advanced optical instrumentation.
  • This technology holds potential for applications requiring fast, precise optical focusing without mechanical components.