摘要(英) |
Photocoupler is the most common applications in sensing device, light-emitting diode and photoresistor are used together to transmit digital signals normally. In this paper proposes a method to effectively convert optical signals into voltage signals by using a pairs of mini light-emitting diodes through the law of refraction and reflection and the photoelectric effect of light-emitting diodes. On the same plane arranged in a matrix with the same LEDs, and the relative distance needs to be less than 30mm, which can be used as a surface brightness sensor, a spatial positioning sensor and a color sensor.
To the experimental data,
(1) Sensor red get the 98.54% sensitivity from light-emitting red could be a red light sensor. the sensor green get less than 1.5% from light-emitting blue, it could be used as bule light filter.
(2) Sensor red generates a sensing voltage of 3.3mV/Lux relative to the illuminance.
(3) For the color of object surface, after detecting through the R, G, B Mini light-emitting-diodes and define the detection distance and range to analyze the color elements.
(4) The light source through the glass form the light guide enlarge and transfer voltage signal to sensor red, could determine object relative location.
This research can use a single material to achieve a simple detection effect, and in the production process, it can reduce the carbon footprint which can promote environmental issues and corporate energy-saving ideas. |
參考文獻 |
[1] IEA,國際能源署,“CO2 emissions from energy combustion and industrial processes, 1900-2021”.
[2] 行政院環境保護署推動產品碳足跡管理要點,“環署管字第1090018306號 令”.
[3] IPCC,政府間氣候變化專門委員會,專有名詞.
[4] Omron, https://www.omron.com.tw/solution/guideDetail/0119_1.
[5] 國際照明委員會,CIE 1931.
[6] 郭浩中、賴芳儀、郭守義 編著,“LED原理與應用”,五南出版社,(2013).
[7] 吳騏廷,“AlGaInP與GaN發光二極體之特性提升”, 國立交通大學材料科學與工程學系碩士論文,July 2007.
[8] 遲尚毅, “利用光電導設計結合PSLC製作先進可光電雙調控之智慧窗戶研究”國立成功大學光電科學與工程研究所碩士論文,July 2017.
[9] 經濟部標準檢驗局 發行, “CNS台灣國家照度標準”,1987.
[10] 陳晏晟,“LED光偵測用之交指電極單晶矽異質接面光感測器之製造與性能評估”,國立雲林科技大學機械工程系碩士倫文,April 2022.
[11] 光寶科技, https://www.liteon.com/zh-tw.
[12] 廣博實業, http://www.prochem.com.tw/zh_TW/productsdetails/no/1479193135001
[13] Q. T. Tong and U. Gosele, “Semiconductor wafer bonding recent developments’’, 1994.
[14] Virendra N. Mahajan, “Fundamentals of Geometrical Optics’’,2014.
[15] Einstein A. On a heuristic point of view concerning the production and transformation of light[J]. Annalen der Physik, 1905.
[16] Md. Mosarraf Hossain, Gyanendra Sheoran, Varun Kumar, and Chandra Shakhe, “Contouring of diffused objects using lensless Fourier transform digital moiré holography’’ Optica,2012.
[17] N. Antipa, G. Kuo, R. Heckel, B. Mildenhall, E. Bostan, R. Ng, L. Waller, “DiffuserCam: Lensless Single-Exposure 3D Imaging,” Optica, 2018.
[18] Xiuxi Pan, Xiao Chen, Saori Takeyama, and Masahiro Yamaguchi, “Image reconstruction with transformer for mask-based lensless imaging’’ Optica,2022. |