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 Experiment Video

Updated: Feb 27, 2026

The Frequency Domain Thermoreflectance Technique for Thermal Property Measurements
09:10

The Frequency Domain Thermoreflectance Technique for Thermal Property Measurements

Published on: December 5, 2025

965

Normal tracing deflectometry using a secondary light source.

Chuanqian Peng1, Yumei He1, Jie Wang1

  • 1Shanghai Institute of Applied Physics, Chinese Academy of Sciences, 2019 Jia Luo Road, Jiading District, Shanghai 201800, People's Republic of China.

Journal of Synchrotron Radiation
|July 1, 2017
PubMed
Summary
This summary is machine-generated.

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

New type of autocollimator based on the normal tracing method and Risley prisms.

Applied optics·2021
Same author

A novel anti-virulence gene revealed by proteomic analysis in Shigella flexneri 2a.

Proteome science·2010
Same author

Effect of Xuefu Zhuyu Capsule (血府逐瘀胶囊) on the symptoms and signs and health-related quality of life in the unstable angina patients with blood-stasis syndrome after percutaneous coronary intervention: A Randomized controlled trial.

Chinese journal of integrative medicine·2010
Same author

Prognostic factors and outcome of 438 Chinese patients with hepatocellular carcinoma underwent partial hepatectomy in a single center.

World journal of surgery·2010
Same author

Proteomic analysis of hydrogen photoproduction in sulfur-deprived Chlamydomonas cells.

Journal of proteome research·2010
Same author

MSU-S mesoporous materials: an efficient catalyst for isomerization of alpha-pinene.

Bioresource technology·2010

This study introduces a novel optical system for precise mirror profile measurement, minimizing errors from optical defects. The new method enhances accuracy in surface metrology for synchrotron applications.

Area of Science:

  • Optical Engineering
  • Metrology
  • Surface Science

Background:

  • Traditional scanning deflectometric profilers using f-theta systems are standard for mirror profile measurements at synchrotron facilities.
  • These conventional profilers rely on a pencil beam, which can be susceptible to systematic errors from manufacturing defects and optical aberrations.

Purpose of the Study:

  • To develop an improved optical system for measuring surface profiles with enhanced accuracy.
  • To minimize systematic errors inherent in traditional profilers, particularly those caused by optical element imperfections.

Main Methods:

  • A novel system employing a secondary light source and a pinhole was designed to automatically select a beam.
  • This selected beam propagates normally to the surface under test, enabling slope variation measurement by analyzing the beam's angular deviation.
Keywords:
aberrationbeam lateral motiondeflectometric profilerinhomogeneitynormal tracing methodsecondary light source

More Related Videos

Simultaneous Brightfield, Fluorescence, and Optical Coherence Tomographic Imaging of Contracting Cardiac Trabeculae Ex Vivo
12:54

Simultaneous Brightfield, Fluorescence, and Optical Coherence Tomographic Imaging of Contracting Cardiac Trabeculae Ex Vivo

Published on: October 2, 2021

3.7K
Direct Force Measurements of Subcellular Mechanics in Confinement using Optical Tweezers
09:56

Direct Force Measurements of Subcellular Mechanics in Confinement using Optical Tweezers

Published on: August 31, 2021

5.6K

Related Experiment Videos

Last Updated: Feb 27, 2026

The Frequency Domain Thermoreflectance Technique for Thermal Property Measurements
09:10

The Frequency Domain Thermoreflectance Technique for Thermal Property Measurements

Published on: December 5, 2025

965
Simultaneous Brightfield, Fluorescence, and Optical Coherence Tomographic Imaging of Contracting Cardiac Trabeculae Ex Vivo
12:54

Simultaneous Brightfield, Fluorescence, and Optical Coherence Tomographic Imaging of Contracting Cardiac Trabeculae Ex Vivo

Published on: October 2, 2021

3.7K
Direct Force Measurements of Subcellular Mechanics in Confinement using Optical Tweezers
09:56

Direct Force Measurements of Subcellular Mechanics in Confinement using Optical Tweezers

Published on: August 31, 2021

5.6K
  • The developed method's performance was evaluated through simulations and compared against a conventional profiler method.

    • Main Results:

    • The proposed method demonstrated the potential to significantly minimize systematic errors that affect traditional profilers.
    • Simulation results indicate improved accuracy in measuring slope variations of the surface under test.
    • Comparison with conventional methods suggests superior performance in mitigating errors from manufacturing defects and aberrations.

    Conclusions:

    • The developed optical system offers a promising alternative for high-accuracy surface profile metrology.
    • This technique is particularly beneficial for applications requiring precise measurements, such as at synchrotron facilities.
    • The method effectively reduces systematic errors, leading to more reliable mirror profile characterization.