Single-chip DLP with least RBE? - AVS Forum
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post #1 of 7 Old 01-23-2013, 06:00 AM - Thread Starter
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An additional conitions: it must be 3D, 1080p and under 3000$.

My candidates:
Sharp XV-Z17000 (RGBRGB 5x speed color wheel)
Sharp XV-Z30000 (RGBRGB 5x speed color wheel)

Any challengers?
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post #2 of 7 Old 01-23-2013, 08:25 AM - Thread Starter
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Delete this thread, please. I was under the impression that 5x is the physical color wheel speed, but it only appears to be 2.5x. Fastest color wheel speed now is 3x (Optoma HD33, BenQ W1070 and some others). Does it mean they show the same amount of RBE? Don't know.
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post #3 of 7 Old 01-23-2013, 08:34 AM
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5x and higher color wheel speeds show that least RBE.
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post #4 of 7 Old 01-23-2013, 08:40 AM
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Quote:
Originally Posted by Elix View Post

........ I was under the impression that 5x is the physical color wheel speed, but it only appears to be 2.5x. Fastest color wheel speed now is 3x (Optoma HD33, BenQ W1070 and some others). Does it mean they show the same amount of RBE? Don't know.

1X means that red, blue and green image subframes are displayed one time each 1/60 second. Older color wheels only had 3 segments, but many newer models, such as the W1070, have 6 segments with the RGB repeated two times. Thus such a 6-segment color wheel that is mechanically rotating at 3X speed will produce an effective 6X speed with each of the R, B and G subframes displayed 6 times each 1/60 sec. Such a color wheel setup will show less RBE than other projectors using color wheels with a lower effective speed.

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post #5 of 7 Old 01-23-2013, 10:34 AM - Thread Starter
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And what's the downside of this technique? Or else, what prevents them to use 9 segments (RGBRGBRGB)?
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post #6 of 7 Old 01-23-2013, 06:37 PM
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Optoma HD8300 best in class under $2000 manufacturer refurbished. Bang for a buck.

I have seen RBE in all my three previous projectors, not on this one.
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post #7 of 7 Old 01-23-2013, 09:03 PM - Thread Starter
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What were you previous projectors?
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