背投影電視鏡頭光學設計與公差分析

An optical lensdesign and its tolerance for the rear-projection TV

談智偉(Zhi-Wei Tan)

指導教授 ： 鍾炳濤

中原大學/理學院/應用物理研究所/碩士(2006年)

https://doi.org/10.6840/cycu200600477

摘要

本文以DLP的背投影電視為基礎設計一16:9的 52吋寬螢幕背投影電視所需的成像鏡頭。此鏡頭設計為反向找尋規格及設計，並且以返焦式透鏡組做為主要結構，然後再使此鏡頭的主光線到DMD為一平行系統光軸，即具有遠心系統特性，以此符合背投影電視鏡頭在光學系統上所需具備的後焦焦距長於有效焦距、廣視角和主光線平行系統光軸等光學特性。而所設計的背投影電視鏡頭以十三片透鏡所組構成，每一片透鏡皆為球面透鏡，並再減少一片透鏡修改為十二片球面透鏡，使其在在成像品質上依然達到十三片球面透鏡的水準。最後對此鏡頭做公差分析模擬所設計鏡頭的MTF。

關鍵字

光學設計

並列摘要

In this thesis, we design lens for 52 inches of 16:9 screens that is based on rear projection television of DLP. We reverse the lens to find the specification, and the retrofocus type lens will be the main structure to proffer the back focus length is longer than effective focus length, then make the chief ray of the lens to arrived at DMD as a parallel optical axis that let the lens had the characteristic of telemetric system, The rear projection television lens is composed of 13 spherical lens. We reduce one spherical lens to 12 spherical lenses that will still meet the same image quality as 13 spherical lenses. At last, we make the tolerance analysis for the lens’ MTF.

並列關鍵字

lens design

參考文獻

[2.7] 許紘齊 , “精巧型矽基投影機照明系統之研究”, 長庚大學光電研究所

[1.1] JVC “D-IAL PROJECTOR TECHNICAL GUIDE”

[2.1] JVC “D-IAL PROJECTOR TECHNICAL GUIDE”.

[2.6] Edward H. Stupp, Matthew S. Brennesholtz , “Projection Displays”John Wiley & Sons , 1999.

[2.8] Texas Instruments.