projection optical system

In this paper, an optical alignment system is introduced using gratings with different constant for the step projection photoetching machine.

介绍一种在分步投影光刻机中，采用不等栅距光栅进行对准的系统。

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Design of Optical System in Rear-TV Projection

背投电视的光学系统设计

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A simulation system includes target signature and IR scene dependent database, image generation computer, IR target generator, IR scene projection optical system, flight simulator and simulation computer.

仿真系统包括目标特性及与红外场景有关的数据库、图像生成计算机、红外目标发生器、红外场景投影光学系统、飞行模拟器、仿真计算机。

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In the thesis, the efficiency of the optical energy and contrast of the system are discussed. The traditional Philip prism and the PBS are improved in order to suit our projection system.

论文对显示系统光能利用效率、对比度等特性进行了充分分析，对Philip棱镜系统以及PBS偏振系统进行了优化和改进，获得了高性能的投影显示。

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General consideration of optical system in the projection aligner

投影光刻机光学系统的总体设计

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