| Summary: | 碩士 === 中原大學 === 奈米科技碩士學位學程 === 106 === “Industry 4.0,” or the fourth industrial revolution, is a high-tech plan proposed by Germany. With advantages of penetrative scanning and adequate resolution, Optical Coherence Tomography (OCT) is one of the promising industrial imaging technologies that can be used for nondestructive inspection of factory products. At present, most of the imaging facilities in the market yield 2D images, and therefore are challenging in quick 3D imaging of the samples like touch panels of mobile phones or panel substrates of solar cells.
At present, the optical inspection machines in the market are commonly large in size, heavy in weight, and high in price. Besides, the requirement of manual operation results in high detection error rate and its increasing with time, which not only reduces the efficiency but also increases the production costs. This paper established miniaturized OCT module for observation of the internal structure of the mobile touch panels and solar cell panels. We employed 5mm microlenses and 2cm micro-actuators to construct the module and made the entire optical inspection system reduced to 5 to 10cm in length. It can then be applied to an automatic optical inspection array with even higher scan speed and throughput. The defected mobile phone panels or solar cell panels can be directly discarded without subsequent processing cost, and the information can be fed back for parameters optimization of the production line.
The rapid development of Industry 4.0 makes high-speed inspection more valuable. Optical tomography technique can be applied to construct a quality-control system that performs automated on-line scans, prompt three-dimensional inspection, and real-time feedback for fine tuning of production parameters to establish a fully-automated factory environment. Due to its non-invasive ness and small volume, the “Miniaturized 3D Optical Inspection System for Industry 4.0” has great market potential in panel detection, automation system, and other related industrial fields.
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