DLP投影機之LED照明系統設計製造與分析

Optical Design, Manufacture and Analysis of Illumination System in DLP LED Projector

周庭暐(Ting-Wei Chou)

指導教授 ： 王培仁

國立清華大學/工學院/動力機械工程學系/碩士(2011年)

摘要

隨著科技的進步，投影機終於也從以往較笨重的固定式通訊商務產品，蛻變成有如手機一般小的可攜式投影機。可攜式投影機使演講者不再被限制在會議廳，任何時刻任何場合都將可以隨心所欲的做簡報。
然而以小體積為取向的投影機，在光源設計上，顯然已無法採用傳統的高壓氣體光源，現今雖然有小體積光源發光二極體可使用，但在亮度和發光效率方面仍嫌不足，且在體積限制下，許光學多元件如積分器、聚光鏡、光閥面板等等，不但在製作上是更加困難，在光源相關規格上，如光傳遞效率、照明均勻度、對比度等，目前市售商品性能表現仍屬差強人意。
本論文以數位光源處理投影技術為重心，使用商用光學軟體進行分析設計，預期建立一新穎的可攜式投影機之照明系統，並分析其照明規格以及實際製作成品。

關鍵字

投影機 ； 數位光源處理 ； 照明

並列摘要

In the advent of 3C technology, projectors come in bulky and non-movable package design has gradually transformed into portable cellphone-size projectors. Contrast to fixing on the ceiling of conference halls, speech presenters can now willingly deliver a speech with the help of a micro-projector elsewhere.
However, to reducing the size and weight, traditional light sources such as high-intensity discharge (HID) and ultra-high pressure mercury lamp (UHP) are no longer applicable to the projectors anymore. Although compact light-emitting diodes (LEDs) are readily available for projector today, the brightness and energy efficacy of LEDs are still insufficient. Especially under the restriction of volume, it is more difficult to manufacture optical components such as integrator, condenser, light valve panel. Most importantly, projectors in the market today only perform fairly on optical qualities such as optical transmission, illumination uniformity, and contrast ratio.
This thesis is to focus on digital light processing (DLP) technology based on the use of commercial optics software so that a novel illumination system for the projector is established. Finally, prototype models have been built for experimental verifications.

並列關鍵字

Projector ； Digital Light Processing ； Illumination

參考文獻

[6] 陳時偉，「數位光源處理投影系統之光學設計與光機模擬」，元智大學電機工程研究所碩士論文，pp.1-2（2002）。

[14] L. J. Hornbeck, “Digital Light Process for High Brightness, High Resolution Applications”, Proc. of SPIE, 3013, pp.27-40 (1997).

[21] Enrico Geiβler, “Meeting the Challenges of Developing LED-based Projection Displays”, Proc. of SPIE Vol.6196, 619601, pp.2 (2006).

[22] “Spectral Luminous Efficiency Functions Based upon Brightness Matching for Monochromatic Point Sources, 2°, and 10° Fields, ” CIE Publication No. 75 (1988a).

[23] “CIE 1988 2° Spectral Luminous Efficiency Functions of Photopic Vision, ” CIE Publication No. 86 (1988b).