A review and analysis of automatic optical inspection and quality monitoring methods in electronics industry

M Abd Al Rahman, A Mousavi - Ieee Access, 2020 - ieeexplore.ieee.org
Electronics industry is one of the fastest evolving, innovative, and most competitive
industries. In order to meet the high consumption demands on electronics components …

An insight into optical metrology in manufacturing

Y Shimizu, LC Chen, DW Kim, X Chen… - Measurement …, 2021 - iopscience.iop.org
Optical metrology is one of the key technologies in today's manufacturing industry. In this
article, we provide an insight into optical measurement technologies for precision …

Fast industrial inspection of optical thin film using optical coherence tomography

MF Shirazi, K Park, RE Wijesinghe, H Jeong, S Han… - Sensors, 2016 - mdpi.com
An application of spectral domain optical coherence tomography (SD-OCT) was
demonstrated for a fast industrial inspection of an optical thin film panel. An optical thin film …

In Vivo Monitoring on Growth and Spread of Gray Leaf Spot Disease in Capsicum annuum Leaf Using Spectral Domain Optical Coherence Tomography

NK Ravichandran, RE Wijesinghe… - Journal of …, 2016 - Wiley Online Library
We have demonstrated the application of optical coherence tomography (OCT) in diagnosis
of growth and spread of the gray leaf spot disease in Capsicum annuum leaf caused by the …

Quantitative assessment of touch-screen panel by nondestructive inspection with three-dimensional real-time display optical coherence tomography

NH Cho, K Park, JY Kim, Y Jung, J Kim - Optics and Lasers in Engineering, 2015 - Elsevier
We investigated the use of optical coherence tomography (OCT) to measure several
materials immersed in optical adhesives. The effects of variations in the concentration …

Classification of material type from optical coherence tomography images using deep learning

M Sabuncu, H Ozdemir - International Journal of Optics, 2021 - Wiley Online Library
Classification of material type is crucial in the recycling industry since good quality recycling
depends on the successful sorting of various materials. In textiles, the most commonly used …

Ultra-high-resolution optical coherence tomography for the investigation of thin multilayered pharmaceutical coatings

M Wolfgang, A Kern, S Deng, S Stranzinger… - International Journal of …, 2023 - Elsevier
Abstract Optical Coherence Tomography (OCT) has recently gained attention as a promising
technology for in-line monitoring of pharmaceutical film-coating processes for (single …

Non-destructive inspection methods for LEDs using real-time displaying optical coherence tomography

NH Cho, U Jung, S Kim, J Kim - Sensors, 2012 - mdpi.com
In this study, we report the applicability of two different Optical Coherence Tomography
(OCT) technologies for inspecting Light Emitting Diode (LED) structures. Sectional images of …

Depth enhancement in spectral domain optical coherence tomography using bidirectional imaging modality with a single spectrometer

NK Ravichandran, RE Wijesinghe… - … of biomedical optics, 2016 - spiedigitallibrary.org
A method for depth enhancement is presented using a bidirectional imaging modality for
spectral domain optical coherence tomography (SD-OCT). Two precisely aligned sample …

Industrial resin inspection for display production using automated fluid-inspection based on multimodal optical detection techniques

RE Wijesinghe, K Park, Y Jung, P Kim, M Jeon… - Optics and Lasers in …, 2017 - Elsevier
The large-scale liquid-crystal display (LCD) industry requires an accurate inspection system
for identifying defects, as the LCD quality can be drastically degraded because of defects. In …