PROJECTION OPTICAL SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a compact and highly efficient projection optical system at low costs in which a beautiful image with high contrast is available with a simple arrangement.

SOLUTION: The system is so composed that light is not leaked except at a prescribed polarizing beam splitter and contrast is not decreased by reflecting two out of three colors on a color resolving mirror, and reflecting blue light B on a second color separation mirror.

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