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姓名 林俊宏(Chun-Hung Lin) 查詢紙本館藏 畢業系所 光電科學研究所碩士在職專班 論文名稱 投影機微鏡面矩陣對信號灰階強度的影響
(Digital micromirror device to variety of gray level signal influence)相關論文 檔案 [Endnote RIS 格式]
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摘要(中) 微鏡面矩陣面板是靠著時間分割原理,經由影像處理器處理不同時間所接受到的單色灰階信號顯示在面板上再配合光學系統將彩色的影像投射出來。一個完整的投影系統所呈現在螢幕上的畫面,會因為不同的輸入信號而產生不同程度的干擾而形成影像瑕疵;為了瞭解信號對於微鏡面板瑕疵的關係,在實驗中利用灰階信號輸入到系統中,使用亮度計所測得的結果進一步探討影像瑕疵的原因,實驗中也使用電子顯微鏡直接觀察顯示面板本身在未經過光學系統所呈現的影像,將更能了解此系統的限制與特性。 摘要(英) Digital micro-mirror device (DMD), a spatial light modulator developed by Texas Instruments, was investigated. By using pulse width modulation to control the amount of time each mirror reflects the light, the projected image is created. The image performance of the projector is found surprisingly poor, with a signal of gray range of the color region noticeably smaller then that of a CRT monitor using standardized phosphors. It results flicker and contour discontinuous artifact defects. It use lumen meter to measure the projection system output light intensity by a variety of signal levels and specially to setup microscope of charge-coupled device (CCD) for observation direction to further analyses. 關鍵字(中) ★ 投影機 關鍵字(英) ★ DLP
★ DMD論文目次 一. 引言 ………………………………………… 1
二. 原理 ………………………………………… 9
三. 實驗分析與討論 …………………………… 20
四. 結論 ………………………………………… 37
五. 參考文獻 …………………………………… 52
六. 附錄 ………………………………………… 54參考文獻 [1] I. Pitas , “Digital image formation”,chap.1 in Digital Image Processing Algorithms and Applications, pp. 4-10, (2000).
[2] Edward H. Stupp , Matthew S. Brennesholtz ,”Types of projection lamps”,chap.8 in Projection Displays, pp. 183-186, (1999).
[3] Edward H. Stupp , Matthew S. Brennesholtz ,”Color separation efficiency”,chap.11 in Projection Displays, pp.267-270, (1999).
[4] Peter H. Putman “Projector Light Engines” Entertainment Design, (2000).
[5] Michael Barr “Introduction to Pulse Width Modulation”, (2001).
[6] Lars Yoder, “The Digital Display Technology of The Future”, pp.5, Other Display Technologies, (1997).
[7] Pierre M. Lane, “The Complex-Valued Optical Fourier Transform and its Application to Moving-Object Trajectory Estimation”, pp.126, The Digital Micromirror Device, (1999).
[8] Willian Mandl ,Chyau Shen ,John Yang “Stream Vision, A Digital Image and Display Technology” pp.2, (2003).
[9] Chris Bohler ,Ed Nelson ,Rina Bhuva ,Bill Bommersbach ,Don Powell ,Donald Whitney “Photofinishing with Digital Light Processing” pp.3, (1998).
[10] 李俊樺,”紅外線雷色二極體頻率調制聲音通訊”,光檢知器,中央大學光電所論文,pp. 51, (2001).
[11] HP 4195A Network/Spectrum Analyzer,“Network
Spectrum And Impedance Evaluation of In Circuit“,(1987).
[12] 王怡鈞譯,“電磁學”,靜電力與靜電場,pp.128-146, (1990).
[13] Rafael C. Gonzalez, Richard E. Woods “Digital Image
Processing”, pp.283-290, (2002).
[14] 王怡鈞譯,“電磁學”,靜電力與靜電場,pp.391-398, (1990).
[15] Joseph W. Goodman, “Fresnel and Fraunhofer diffraction”, chap.4 in Introduction to Fourier Optics, pp.57-73,(1968).指導教授 王迺愨(Nai-Chueh Wang) 審核日期 2005-2-4 推文 plurk
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