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This Minute at Runco

Open Response to rAVe Publications post: "Slippery Slope of 3D Brightness"

Wednesday, June 01, 2011

By Jennifer Davis

In response to the blog post by by Chris Chinnock of Insight Media via rAVepubs.com, on: "Slippery Slope of 3D Brightness"

Thanks, Chris, for bringing this matter to light (no pun intended). Perceived brightness is a complicated calculation. This is one of the main reasons why Runco products, for example, have always been specified in what we call CSMS, as a measure of foot-Lamberts off the screen rather than lumens out of the projection lens. Further complicating things is 3D. We have found that it isn’t just brightness loss that is the problem in theater design, but rather the variance between the 2D and 3D modes in the same theater set-up (which of course affects everything from screen size and material to viewing distances). We have found that getting the 2D and 3D modes to be within 20% or so of each other makes a huge difference in overall owner satisfaction because most don’t watch 3D 100% of the time and want the flexibility. This principle played heavily into our design of the Runco 3Dimension D-73d projector.

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