雷射光源之微型化ＤＬＰ投影機

Micro DLP Projector with Laser Illuminator

李孟哲(Meng-Che Li)

指導教授 ： 陳政寰

國立清華大學/工學院/動力機械工程學系/碩士(2009年)

摘要

數位投影機的發展進步神速，近年來其中一個發展的重點在如何製作輕薄短小，易於攜帶的手持式投影機；本研究的基礎以德州儀器公司生產的DLP(Digital Light Processing) 投影技術出發，討論在成像與非成像光學設計上將光學系統微縮的可行性，另一重點則是導入雷射取代傳統高壓汞燈作為投影光源。
實驗過程中，將把從市面上購得的傳統DLP投影機加以改裝，改裝後的雷射投影機必須能夠實際驗證投影效果，本文將詳述實驗過程，包括光學模擬設計一小型消色差doublet鏡頭以取代原投影機鏡頭、雷射光源模組的設計製作、雷射光束的整型、電子電路的製作使雷射模組能利用色序法以生成色彩，循序完成各項光機電系統的整合，最後成功的使投影機運轉進而評估各項效能。

關鍵字

DLP投影機 ； 雷射光源 ； 雷射光束整形

並列摘要

Abstract

The rapid evolution of digital projector technology in the recent years, one of the major trends is light, thin, and small portable projector. The research is an extended work based on Texas Instruments Inc. DLP (Digital Light Processing) projection technology which discusses the feasibility on how to shrink optical system in non-imaging and imaging optical designs. Another key feature is exploiting laser instead of conventional UHP lamp as the illuminator.
During the experiment, the prototype is modified from an existing commercial DLP projector bought from the projector market. The laser projector should be able to project image on the wall after the modification. The article will describe the detail process of the integration including optical simulation to design a small achromat doublet projection lens, laser illuminator design, laser beam shaping, and electronic controller design to control lasers in color-sequential mode. Eventually, evaluate the each performance index after the laser projector is successfully in operation.

並列關鍵字

DLP projector ； laser illuminator ； laser beam shapper

參考文獻

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