Persistence of Vision — La
Real Contrast Ratio vs. Projector Specification Contrast Ratio
Active Viewing Ambient Light contrast ratio Infocomm La Lp Passive Viewing PRISC Projected Light Projection Systems Rs Screen Reflectance
Let's look at the idea of a projection system again. A projection system consists of three parts: the projector, the screen and the room. If we consider these three parts and establish values for them, then we can make a reasonable prediction of what our real world Contrast Ratio will be. Further, we will establish what our real world Contrast Ratio needs to be for different projection applications, based on a recent standard developed by Infocomm called PRISC or Projected Image System Contrast Ratio.