Inspection for all components in device production using scientific imaging

15 September 2021

Most of today’s consumer electronics are display-based devices that provide dynamic visuals and intuitive user interfaces for our phones, tablets, smart watches and laptops. Our expectations for quality in these products have never been higher, driving a need for quality control processes throughout electronics manufacturing at each component stage, from chip to cover glass. Visual inspection equipment applied in electronics production has traditionally consisted of machine vision cameras and software to provide automated quality control that is fast, precise and consistent. However, these traditional systems are not designed with the sensitivity needed to accurately quantify values of light and color, which critically influence the visual qualities of important illuminated components such as displays, backlight units and illuminated keyboards.

Imaging photometers and colorimeters are scientific imaging systems developed with unique internal filters that receive light with the same sensitivity as the human eye. This advantage allows these systems to quantify values of light that are most useful for quality control — the values that influence how we visually perceive the qualities of a device. Brightness, color, contrast, uniformity and more can be quantified by these specialized imaging systems to evaluate them against tolerances for quality as perceived by a user. In addition, the high imaging resolution and light sensitivity of these systems make them extremely adept at detecting the most subtle defects in device assemblies (misrouted cables, dark screws missing from dark surfaces, slight connector misalignment) and on exterior surfaces (dents, scratches, or blemishes on plastic, metal and cover glass). As a total solution, manufacturers can apply these systems for automated, in-line inspection of all components throughout device assembly, benchmarking against universal light measurement standards and the most accurate and relevant data for quality control.

In this video, see how imaging photometers and colorimeters from Radiant Vision Systems are used at each stage in the production of a display-based electronic device to detect light, color, assembly and surface defects. By identifying defects as early as possible on the line, Radiant’s inspection systems facilitate lean operations — improving efficiency, lowering production costs, and reducing material waste — while ensuring absolute quality of devices from display to final assembly.

In this video, you will learn about:

  • Components inspected during the production of a display-based electronic device
  • How Radiant’s scientific imaging colorimeters and photometers are applied for automated visual inspection of a variety of electronic components
  • Unique applications of photometric imaging that ensure visually perfect displays, accurate assemblies, and blemish-free device surfaces

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