OptoFidelity Articles

When selling a pre-owned smartphone, sellers face the challenge of accurately describing the device's overall condition, both in terms of appearance and functionality, to ensure that the buyer's expectations are met and the price is fair. One aspect of the overall condition is the functionality of the camera. This article focuses on common defects in pre-owned smartphone cameras and provides examples of real-life issues that have been identified through an automated smartphone-testing system.

Description

When considering the user experience of the smartphones, characteristics such as display resolution, brightness, sharpness, contrast, uniformity, and color accuracy are important. All these properties, with the exception of the resolution, may have deteriorated on a pre-owned smartphone. Depending on the display technology, OLED or LCD, the quality of the display gets poorer over time due to aging in different ways. For example, OLED displays suffer from burn in, which means that statically displayed brightness patterns can get burned into the display so that they can be seen on a blank display or in most severe cases even on top of other content. Burn in can also happen unevenly on different color channels leading to color distortion throughout the whole display.

LCD displays, on the other hand, may suffer from aging of the backlight components or the liquid crystal substances leading to nonuniform brightness or color. Physical wear and tear, as well, damages the quality of the display.

Introduction

Cosmetic condition is an essential aspect to consider when purchasing a pre-owned smartphone. The condition is usually communicated to the consumer via a given grade. The grading scale ranges from A, indicating like-new condition, to D, indicating visible wear and tear. More often than not, these gradings tend to be subjective and vague.

OptoFidelity´s automated test systems measure the optical and tracking performance of metaverse headsets and enable products to deliver a premium user experience.

Learn more about OptoFidelity´s testing solutions in the Enabling Metaverse Quality article from Dr. Nikhil Pachhandara, Chief Innovation, and Growth Officer. 

Metaverse is the 3D extension of the internet into the virtual world. This world is accessed through AR/VR/MR/XR glasses. HMDs and NEDs play a crucial role in accessing the metaverse. The core of the user experience in the metaverse is dependent on the quality of the headsets. 

OptoFidelity is the global leader in designing and manufacturing automated test systems for measuring the optical and tracking performance of AR and VR systems. OptoFidelity BUDDY and OptoFidelity HMD IQ provide accurate and repeatable measurements of various critical image and optical qualities of headsets´ display characteristics, tracking performance, and component verification.

With OptoFidelity BUDDY, a temporal performance testing and calibration system for head-mounted displays is provided. Test cases available for measuring temporal performance include: display temporal characteristics (pixel persistence and refresh rate), motion-to-photon latencies (motion-to-photon latency with or without motion prediction, initial latency), motion tracking accuracy (spatial jitter, drifting, prediction overshoot and undershoot, tracking repeatability) and AR world-locking performance (hologram-locking accuracy to real-world features, hologram stability, and simultaneous localization and mapping verification). 

OptoFidelity HMD IQ is a measurement system for validating the image quality of head-mounted displays and various near-eye displays and their optical modules over the entire FOV and eye-box. It is designed for both product development and mass-production testing and calibration. 

Read more from Enabling Metaverse Quality article in the Consumer Electronics Magazine.

To ensure a seamless user experience and to protect their bottom line, manufacturers should implement automated human-like testing of touchscreen user interfaces at every phase of a product’s development cycle, says Dr. Nikhil Pachhandara, Chief Innovation and Growth Officer at OptoFidelity.

Read more about the topic from the Human Touch article in the Consumer Electronics magazine.

OptoFidelity’s touch testing systems TOUCH and STYLUS offer a human-simulating approach, bringing a new level of quality and efficiency to the evaluation of touch UI. OptoFidelity TOUCH provides fast and accurate performance testing for chipsets, touch panels, and final products, adding value to the entire testing process. OptoFidelity STYLUS offers automated testing for stylus products using high-accuracy motion robotics. 

The automated test systems from OptoFidelity bring many advantages over manual testing, like repeatability and precision, and higher efficiency.

Read the Human Touch article to learn why manufacturers should consider implementing touch UI testing processes at each stage of a product’s development cycle.