Epson's spectral vision system
In the manufacturing industry, various inspections related to color, such as checking for color variations and surface coatings, are conducted to minimize color differences between lots generated during the manufacturing process and to ensure product quality. In these color inspections, the currently widespread RGB cameras may not be able to distinguish subtle color differences, leading to a reliance on visual inspections based on human perception. This can result in variations among operators and the risk of defective products being released into the market. Epson has developed a solution to address these challenges in color inspection by creating a spectral camera that achieves high precision and miniaturization through its proprietary new technology, the "MEMS Fabry-Perot Tunable Filter," along with offline software capable of measuring spectral spectra (Epson Spectroscopic Vision Tools). This enables quantitative management of color, which was previously difficult, contributing to stable quality assurance of color on the manufacturing line without relying on specific inspection technicians. Furthermore, the inline software that automates inspections helps reduce the workload of inspectors and improves overall productivity on the manufacturing line.
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**Features of Epson's Spectral Vision System** ■ Compact and lightweight size comparable to RGB cameras With a compact size of 49mm in width, 73.5mm in height, 30mm in depth, and weighing 175g, it can replace RGB cameras and fit into spaces where people were previously standing on the manufacturing line. ■ Surface spectral measurement It can non-contactly and simultaneously acquire spectral information from a specified surface. It is capable of capturing color unevenness within the surface, which is difficult to detect with spectral colorimeters. ■ Support for image processing functions It can recognize inspection targets flowing on the manufacturing line using image processing functions and determine whether they meet quality standards with spectral spectrum measurement capabilities, enabling automatic color inspection. Automation of inspections can contribute to reducing the workload of inspectors.
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Epson's industrial robots have led the industry for over 35 years with excellent advanced technology and reliability, rooted in the development of in-house scalar robots optimized for assembling watch movements. Through "compact, small, and precise" technology, we have developed industrial robots that excel in being small and lightweight, catering to the diverse needs of our customers. Furthermore, by integrating our unique sensing and image processing technologies for comprehensive control, we achieve high speed, high precision, and high productivity. With the operational performance and high operability generated by the fusion of Epson's outstanding core technologies, along with robust global support, we aim to respond to the increasingly complex market demands and help lower the barriers to automation in manufacturing.