High Resolution,High Brightness Color Television Projector:Analysis,Investigations,Design,Performance of Baseline Projector.

摘要

This study addressed the problem of establishing the feasibility of, and defining, a high performance color television projector to be used in optically mosaicked, computer image generator (CIG) driven wide-field-of-view simulators. Based on verbal briefing, reviewing documentation, and a visit to the Advanced Simulator for Pilot Training (ASPT) at Williams AFB, the RFP requirements were interpreted, refined and prioritized. The survey task reviewed the extant state-of-the-art in display technology for techniques which held promise of meeting the RFP requirements. Based on this task, it was concluded that only the liquid crystal light valve (LCLV) technology had a chance to do so; however, its performance needed to be upgraded significantly from the then current state. A systematic investigation of all components contributing to projector operation was therefore undertaken. The lamp, illumination system, polarizing beamsplitter, dichroics, LCLVs, CRT, deflection system, projection lens and screen were all subjected to a systematic test/analysis cycle, and improvements were made as required. Samples were obtained, tested and analyzed; breadboards were built and tested; and detailed studies were conducted. Subcontract studies were let, to investigate the dichroics and the projection lens. The latter was a major effort by Kollmorgen Corp. Tradeoffs were generated relating brightness to color purity/range, light falloff to pilot head motion, and resolution to CRT spot size and projection lens cost. Components were then selected (or specified) to result in an RFP-compliant system which yielded minimum overall risk. The projector was defined in detail.