White paper: Understanding the Importance of MTF Measurement

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

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