Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

You might also read

Related Articles

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

Sort by

Same author

[Analysis of the pathogenic spectrum and epidemiological characteristics of acute respiratory infection in Henan Province from 2024 to 2025].

Zhonghua yu fang yi xue za zhi [Chinese journal of preventive medicine]·2026

Same author

Preferential age-related striatal volume preservation in cervical dystonia.

Journal of neurology·2026

Same author

Steroid-Refractory Autoimmune Myocarditis after Pembrolizumab Therapy: Failure of Equine Anti-Thymocyte Globulin to Prevent Heart Failure.

Journal of clinical case reports·2023

Same author

[Emergency psychological intervention of acute ammonia leakage event].

Zhonghua lao dong wei sheng zhi ye bing za zhi = Zhonghua laodong weisheng zhiyebing zazhi = Chinese journal of industrial hygiene and occupational diseases·2022

Same author

The silent psychological impact of the COVID-19 pandemic in Sudan.

Ethics, medicine, and public health·2020

Same author

[The role of abnormal mitochondrial fusion and fission in PBDE-47-induced change in mitochondrial mass in PC12 cells].

Zhonghua lao dong wei sheng zhi ye bing za zhi = Zhonghua laodong weisheng zhiyebing zazhi = Chinese journal of industrial hygiene and occupational diseases·2019

Same journal

Multifunctional reconfigurable terahertz metasurface based on vanadium dioxide phase transition: achieving broadband absorption and efficient polarization conversion.

Applied optics·2026

Same journal

High-Q-factor electromagnetically induced transparency utilizing quasi-bound states in the continuum in an all-dielectric terahertz metasurface.

Applied optics·2026

Same journal

Automated stitching interferometry for high-precision metrology of X-ray mirrors.

Applied optics·2026

Same journal

Experimental demonstration of an approach to designing a metal-dielectric DBR resonant cavity structure.

Applied optics·2026

Same journal

High-precision wavefront reconstruction from a single-shot interferogram using a physics-driven hybrid feature calibration network.

Applied optics·2026

Same journal

Ultra-high-Q Fano resonance based on coupled topological corner states in Kagome photonic crystals.

Applied optics·2026

See all related articles

Search research articles

Related Experiment Video

Updated: Jun 10, 2026

Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures

Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures

Published on: November 21, 2019

Coaxial photorefractive methods: an optical analysis.

W R Bobier, M C Campbell, C R McCreary

|August 21, 2010

Summary

This summary is machine-generated.

This study introduces a new optical analysis for photorefractive methods, defining pattern size by key optical parameters. This allows systematic adjustment of a photorefractor

More Related Videos

$Comparison of Agreement and Accuracy using Binocular Wavefront Optometer with Autorefractor and Phoropter$

Comparison of Agreement and Accuracy using Binocular Wavefront Optometer with Autorefractor and Phoropter

Published on: September 16, 2025

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities

Published on: November 30, 2012

Related Experiment Videos

Last Updated: Jun 10, 2026

Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures

Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures

Published on: November 21, 2019

$Comparison of Agreement and Accuracy using Binocular Wavefront Optometer with Autorefractor and Phoropter$

Comparison of Agreement and Accuracy using Binocular Wavefront Optometer with Autorefractor and Phoropter

Published on: September 16, 2025

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities

Published on: November 30, 2012

Area of Science:

Optical physics
Ophthalmology
Vision science

Background:

Photorefractive methods are used in vision testing.
Understanding the optical principles is crucial for accurate refractive error assessment.
Existing methods may lack detailed optical parameter analysis.

Purpose of the Study:

To provide a novel geometrical optical analysis of coaxial photorefractive methods.
To define photorefractive pattern size using critical optical parameters.
To derive equations for working ranges, dead zones, and vignetting effects.

Main Methods:

Geometrical optical analysis of isotropic and orthogonal photorefractive methods.
Derivation of equations relating pattern size to optical parameters.
Analysis of working range, dead zone, and vignetting.

Main Results:

A working range where pattern size linearly correlates with refractive error and pupil size was defined.
A dead zone was identified where refractive error changes do not affect pattern size.
Critical values for camera lens vignetting were determined.

Conclusions:

Optical parameters can be systematically adjusted to modify a photorefractor's working range.
Discrepancies in model eye tests suggest the need for calibration due to threshold and blooming effects.
This analysis provides a framework for optimizing photorefractor design and performance.