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Title: Transmittance measurement using scanning LED
Authors: Rosmin Elsa Mohan
Lau, Gih-Keong
Asundi, Anand Krishna
Ping, Yao
Keywords: DRNTU::Engineering::Mechanical engineering
Transmittance Measurement
Scanning LED
Issue Date: 2017
Source: Ping, Y., Rosmin Elsa Mohan, Lau, G.-K., & Asundi, A. K. (2017). Transmittance measurement using scanning LED. Fifth International Conference on Optical and Photonics Engineering, 10449, 104492R-. doi: 10.1117/12.2270892
Abstract: In order to measure the transmittance for a large field of view (FOV), a system based on scanning LED is developed. The system mainly consists of tunable LEDs, a glass diffuser and a camera. The LED panel would display different colors in the CIE color space. An algorithm of converting the light wavelength to the RGB values is adopted. The images are captured using a monochrome camera. Depending on the number of colors displayed, the transmittance map for the entire spread of visible colors can be determined. Results are compared with those measured through a spectrometer. The spectral transmittance for the two methods exhibit good similarity. The system provides a means of measuring transmittance with no moving parts and can be extended to other hyperspectral imaging applications.
DOI: 10.1117/12.2270892
Rights: © 2017 Society of Photo-optical Instrumentation Engineers. All rights reserved. This paper was published in Fifth International Conference on Optical and Photonics Engineering and is made available with permission of Society of Photo-optical Instrumentation Engineers.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:MAE Conference Papers

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