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OptoFidelity Articles

Juha Lehtioksa

Juha Lehtioksa is a Product Manager at OptoFidelity. He manages BUDDY, HMD-IQ, TOUCH, and Refurb Products. Juha loves seeing clients being able to push their technology further with the support of OptoFidelity products. He has a Master of Science degree from Tampere University of Technology.
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Recent Posts

3 min read

OptoFidelity SCOUT: Introducing a Versatile Image Quality Tester for Various Form Factor HMDs

By Juha Lehtioksa on 23 May 2023

The Quest for Enhanced Visual Experiences:

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3 min read

BUDDY Test Case: Angular Jitter “Slight irregular movement”

By Juha Lehtioksa on 14 April 2023

This blog starts a series of test case descriptions that give insights into tested phenomena and what really is behind the resulting performance value. I will start with the measurement of Angular Jitter.

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6 min read

OptoFidelity FUSION Q4/2022 SW release

By Juha Lehtioksa on 20 February 2023

OptoFidelity FUSION, the All-in-one functional tester for refurbished smartphones, received its Q4/2022 SW release in December. 

The new release includes:  

  • GPS test
  • LiDAR camera test for iPhones
  • Capability to export image and sound data from tests to the customer's external server for postprocessing and/or archiving
  • Multiple improvements in compatibility, test sequence optimization, and safety features

Since OptoFidelity launched the FUSION robot for functional testing of smartphones we have constantly been developing it to meet the needs of our customers. Over the years FUSION has been used to test millions of smartphones with excellent repeatability.

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3 min read

BUDDY – The Forerunner of Temporal Characteristics Measurement for AR/VR Headsets

By Juha Lehtioksa on 15 February 2023

You may have seen our BUDDY robot at the exhibitions and in our marketing content. But what is the story behind the robot? Read about our development and what drives us further to enable a smarter future.

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3 min read

How to Use Additional Content in a VR Reference Environment During Temporal Measurements

By Juha Lehtioksa on 01 February 2023

When testing the Motion-to-photon (MTP) latency of a Head-mounted display (HMD), variables like CPU/GPU load and network bandwidth can affect the result. Therefore, it is quite common that users would like to utilize certain visual content with the HMD during the test, to better match the actual conditions where the device is being used. But there is a fundamental challenge with additional content as the image on the screen is the exact source for the virtual world viewer orientation and location information. And to be able to get that information from an image, certain reference content needs to be viewed.  

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