--- title: "White paper: Understanding the Importance of MTF Measurement | OptoFidelity" description: This white paper introduces Modulation Transfer Function (MTF) testing and its role in evaluating waveguides within optical systems used in augmented reality (AR) devices. It outlines how MTF measurements help assess how clearly and accurately visual information is delivered to the user’s field of view through the waveguides. image: https://www.optofidelity.com/hubfs/Website/AdobeStock_813314181.jpeg --- [Skip to content](https://www.optofidelity.com/insights/whitepapers/understanding-the-importance-of-mtf-measurement#h1) [OptoFidelity ![OptoFidelity logo](https://www.optofidelity.com/hubfs/raw_assets/public/optofidelity-theme/assets/images/logo.svg) ](https://www.optofidelity.com/en/) Toggle menu - [ Products ](https://www.optofidelity.com/insights/whitepapers/understanding-the-importance-of-mtf-measurement#) - AR/VR/MR Testing [ AR/VR/MR Testing ](https://www.optofidelity.com/en/ar-vr-testing) Improve the quality of your waveguides and smart glasses with precise test systems - AR/VR products [ Production MTF ](https://www.optofidelity.com/production-mtf) High-Resolution Automated Waveguide Image Quality Measurement System [ Production IQ ](https://www.optofidelity.com/production-iq) Automated Waveguide Image Quality Measurement for AR Waveguide Manufacturing [ WG-IQ ](https://www.optofidelity.com/en/products/wg-iq) Fully automated waveguide image quality measurement system [ WG-GAT ](https://www.optofidelity.com/en/products/wg-gat) High-accuracy diffractometer for AR waveguide characterization [ BUDDY ](https://www.optofidelity.com/en/products/buddy) Performance testing system for AR/VR/MR glasses [ Services & support ](https://www.optofidelity.com/en/service-and-support) Learn more about our services and support. 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Advance your career with OptoFidelity and check our open positions. - [Contact us](https://www.optofidelity.com/en/contact-us) - Open search Close search This is a search field with an auto-suggest feature attached. - There are no suggestions because the search field is empty. ![AdobeStock_813314181](https://www.optofidelity.com/hs-fs/hubfs/Website/AdobeStock_813314181.jpeg?width=2000&name=AdobeStock_813314181.jpeg) # Understanding the Importance of MTF Measurement ## White Paper 11 April 2025 This white paper introduces Modulation Transfer Function (MTF) testing and its role in evaluating waveguides within optical systems used in augmented reality (AR) devices. It outlines how MTF measurements help assess how clearly and accurately visual information is delivered to the user’s field of view through the waveguides. Inside, you will learn: - What MTF is and its relevance in optical systems - Common MTF measurement methods - An overview of slanted-edge and hairline testing - The influence of Chief Ray Angle (CRA) on MTF results - How MTF is applied in the production of AR glasses - Considerations for future AR manufacturing and testing practices Please fill in the form to receive the White Paper link in your inbox. ![Optofidelity logo](https://www.optofidelity.com/hubfs/raw_assets/public/optofidelity-theme/assets/images/logo.svg) ## Company - [Media](https://www.optofidelity.com/media) - [Patents](https://www.optofidelity.com/patents) - [Quality Management](https://www.optofidelity.com/quality-management) - [Whistleblowing Channel](https://www.optofidelity.com/whistleblowing) - [Privacy Policy and Cookie Settings](https://www.optofidelity.com/privacy-policy-and-cookie-settings) ## Follow us - [LinkedIn](https://www.linkedin.com/company/optofidelity/) - [X](https://twitter.com/optofidelity) - [Facebook](https://www.facebook.com/OptoFidelity/) - [YouTube](https://www.youtube.com/user/OptoFidelity) ## Subscribe to our newsletter © OptoFidelity ```json { "@context" : "https://schema.org", "@type" : "BlogPosting", "author" : { "@type" : "Person", "name" : "OptoFidelity", "url" : "https://www.optofidelity.com/insights/whitepapers/author/optofidelity" }, "dateModified" : "2025-07-17T08:48:21.225Z", "datePublished" : "2025-04-11T11:32:22.000Z", "headline" : "White paper: Understanding the Importance of MTF Measurement", "image" : [ "https://www.optofidelity.com/hubfs/Website/AdobeStock_813314181.jpeg" ], "mainEntityOfPage" : { "@id" : "https://www.optofidelity.com/insights/whitepapers/understanding-the-importance-of-mtf-measurement", "@type" : "WebPage" }, "publisher" : { "@type" : "Organization", "logo" : { "@type" : "ImageObject", "url" : "https://www.optofidelity.com/hubfs/logo/OPTOFIDELITY_HLOGO2016_RGB.png" }, "name" : "OptoFidelity Oy" } } ```