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

Focusing of Light in the Eye01:16

Focusing of Light in the Eye

Light rays enter the eye through the cornea, a transparent dome-shaped tissue that is the eye's outermost layer. The cornea bends or refracts, light rays traveling to the pupil. The shape of the cornea determines how much of the light is bent and whether the image will be focused correctly on the retina at the back of the eye. Once the light has passed through both refraction layers, it converges into a single focal point onto a small area. This is where photoreceptors start transforming...

You might also read

Related Articles

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

Sort by
Same author

Grafting of neural stem and progenitor cells to the hippocampus of young, irradiated mice causes gliosis and disrupts the granule cell layer.

Cell death & disease·2013
Same author

Apoptosis-inducing factor deficiency decreases the proliferation rate and protects the subventricular zone against ionizing radiation.

Cell death & disease·2011
Same author

Optical pattern recognition measurements of trench arrays with submicrometer dimensions.

Applied optics·2010
Same author

Three-dimensional image realization in interference microscopy.

Applied optics·2010
Same author

Phase measurements using the Mirau correlation microscope.

Applied optics·2010
Same author

Differential interference contrast imaging on a real time confocal scanning optical microscope.

Applied optics·2010

Related Experiment Video

Updated: Jun 19, 2026

A Protocol for Real-time 3D Single Particle Tracking
10:16

A Protocol for Real-time 3D Single Particle Tracking

Published on: January 3, 2018

Electro-optic focusing system for a high-density optical disk.

K Osato, G S Kino, S Kubota

    Optics Letters
    |October 14, 2009
    PubMed
    Summary

    A novel electro-optic cell offers precise focusing for optical disks. This system, using lead lanthanum zirconate titanate, achieves significant focal shifts without compromising image quality near the main lobe.

    Area of Science:

    • Optoelectronics
    • Materials Science
    • Optical Engineering

    Background:

    • Optical disk systems require precise focusing mechanisms.
    • Existing focusing methods can have limitations in adjustment range and precision.
    • Electro-optic materials offer tunable optical properties.

    Purpose of the Study:

    • To develop a fine-adjustment focusing system for optical disks.
    • To utilize an electro-optic cell for precise focal control.
    • To investigate the performance of a novel focusing system.

    Main Methods:

    • Fabrication of an electro-optic cell using transparent lead lanthanum zirconate titanate ceramic.
    • Integration of concentric-patterned indium tin oxide electrodes.
    • Generation of a relative phase shift in the pupil function via the electro-optic effect.

    More Related Videos

    Multimodal Volumetric Retinal Imaging by Oblique Scanning Laser Ophthalmoscopy (oSLO) and Optical Coherence Tomography (OCT)
    12:22

    Multimodal Volumetric Retinal Imaging by Oblique Scanning Laser Ophthalmoscopy (oSLO) and Optical Coherence Tomography (OCT)

    Published on: August 4, 2018

    Optical Recording of Suprathreshold Neural Activity with Single-cell and Single-spike Resolution
    08:48

    Optical Recording of Suprathreshold Neural Activity with Single-cell and Single-spike Resolution

    Published on: September 5, 2012

    Related Experiment Videos

    Last Updated: Jun 19, 2026

    A Protocol for Real-time 3D Single Particle Tracking
    10:16

    A Protocol for Real-time 3D Single Particle Tracking

    Published on: January 3, 2018

    Multimodal Volumetric Retinal Imaging by Oblique Scanning Laser Ophthalmoscopy (oSLO) and Optical Coherence Tomography (OCT)
    12:22

    Multimodal Volumetric Retinal Imaging by Oblique Scanning Laser Ophthalmoscopy (oSLO) and Optical Coherence Tomography (OCT)

    Published on: August 4, 2018

    Optical Recording of Suprathreshold Neural Activity with Single-cell and Single-spike Resolution
    08:48

    Optical Recording of Suprathreshold Neural Activity with Single-cell and Single-spike Resolution

    Published on: September 5, 2012

    Main Results:

    • The electro-optic cell successfully generated a relative phase shift.
    • Theoretical and experimental confirmation of induced focal position changes.
    • Achieved focal shifts up to twice the focal depth without degrading the point-spread function's main lobe region.

    Conclusions:

    • The developed electro-optic cell serves as an effective fine-adjustment focusing system for optical disks.
    • The system provides significant focal adjustment capabilities.
    • The technology demonstrates potential for high-fidelity optical focusing applications.