Vutec at CEDIA - AVS Forum
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post #1 of 4 Old 09-08-2001, 04:41 PM - Thread Starter
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I saw the Vutec at CEDIA. It was pretty interesting. If you put your hand in the light path, it really cast a nearly black shadow, even though it was in a very brightly lit area. They claimed a gain of 2.5. It had good horizontal spreading. I think most of the gain comes in the vertical direction. For normal viewing, the angle is probably good enough. Once you get to the extremes, it "shuts off" very quickly. The luminance vs angle function is more "square wave" than anything I've ever seen. Anyone have any idea how this works?
Also, there was a seam across the screen, even though the screen was pretty small (maybe 2' by 4').

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post #2 of 4 Old 09-08-2001, 05:59 PM
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i posted over in the dlp forum and mentioned this. the rep told me that it uses a shelf technology. sounded like putting a screen behind a venetian blind. light can come in and go out in a narrow vertical plane. he said a 60" was over 5K. the seam is a manufacturing issue that they will not overcome for some time. every 20 inches or so there is a seam.

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post #3 of 4 Old 09-11-2001, 01:21 PM
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So if its like slats, the angle of optimum viewing must be really narrow, am I right?

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post #4 of 4 Old 09-12-2001, 11:15 AM - Thread Starter
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It's not horribly narrow. The setup was a small screen about chest level, with the PJ several feet away at about waist height (if my memory serves). I had to get pretty far off axis to notice the brightness cutoff. On a big screen with a regular setup, I might draw a different conclusion.


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