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Fabrication of Optical Sheet for LED Lighting with Integrated Environment Monitoring Sensors  

Choi, Yong Joon (Department of Bio-Electronics Engineering, Andong National University)
Lee, Young Tae (Department of Bio-Electronics Engineering, Andong National University)
Publication Information
Journal of the Semiconductor & Display Technology / v.12, no.3, 2013 , pp. 35-39 More about this Journal
Abstract
In this paper, we developed an optical sheet for LED lighting with integrated $CO_2$ gas and temperature sensor which can monitor at the indoor environment. The optical sheet for LED lighting is fabricated through PMMA(Polymethyl methacrylate) injection process using mold. This research enables to fabricate the reflective sheet, light-guide plate and the prism sheet in a optical sheet. The fabricated sheet demonstrates higher intensity of optical efficiency compared with single-sided sheets. The $CO_2$ sensor was fabricated using NDIR(NON-Dispersive Infrared) method and it has $0.0235mV/V{\cdot}PPM$ sensitivity. The temperature sensor was fabricated using RTD(Resistance temperature detector) method and it has $0.563{\Omega}/^{\circ}C $sensitivity.
Keywords
LED lighting; Environment monitoring; Optical sheet; NDIR $CO_2$ sensor; RTD;
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Times Cited By KSCI : 1  (Citation Analysis)
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