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Psykopulp

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Posted on Wednesday, March 21, 2001 - 1:57 pm:   Edit PostDelete PostView Post/Check IPPrint Post

Hi,
i'm a happy owner of an sony LCD projector (VPL-CX1) and i wanted to know if the glasses would work with it.
Thanx a LOT for your answer feel free to give advises to a newbie like me, i haven't bought any glasses yet but i feel like doing it pretty soon. Kind regards,
Guillaume
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Eric Lindstrom

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Posted on Wednesday, March 21, 2001 - 10:30 pm:   Edit PostDelete PostView Post/Check IPPrint Post

Hmmm. it may work.

Is the VPL-CX1 a DLP projector or an LCD model?

The shutterglasses should work, but the flicker would be horrible if the thing is an LCD projector.

Here's my advice, Look in the users manual for the projector, and read the Hardware Specifications section. if there is a resolution available on the projector that supports a refresh rate of at least 100Hz, then shutterglasses should work just fine with minimal flicker. You could also try to use VRJoy2000 shutterglasses, whic include an anti-flicker filter for the lenses. I personally have tested the filter on a monitor running at 640x480 with a 80Hz refresh rate, and the flicker was substantially reduced (but, the brightness of the image was reduced a little too)

The filter reduces the image contrast, and seems to be polarized, which would explain why the filter works so well. You could try the projector with a friend's pair of shutterglasses, and see if it works before buying a set of your own.

Good Luck, Hope I was able to help you!

-Eric L.
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giorgio bogoni

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Posted on Thursday, March 22, 2001 - 12:29 am:   Edit PostDelete PostView Post/Check IPPrint Post

Hi Guillaume,
I owne a SONY VPL-CS1 (same electronic and software, only a different case).
Sorry, it does not work.
I knew it coudn't work (it's an LCD projector) but I tried it anyway: LCD aren't fast enought, I could see both images interlaced.
I don't think any filter can help.
Giorgio.
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Eric Lindstrom

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Posted on Thursday, March 22, 2001 - 5:08 am:   Edit PostDelete PostView Post/Check IPPrint Post

Do you use a system with a hardware line blanker, or is your line-blanking method software?

Using a hardware line-blanker may work if your LCD can handle at least 80Hz refresh rate.

-Eric L.
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Eric Lindstrom

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Posted on Thursday, March 22, 2001 - 5:11 am:   Edit PostDelete PostView Post/Check IPPrint Post

BTW, is it an active matrix LCD? Active matrix displays refresh a LOT quicker than your standard LCD's.

-Eric L.
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giorgio bogoni

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Posted on Saturday, March 24, 2001 - 1:49 pm:   Edit PostDelete PostView Post/Check IPPrint Post

Sorry, I forget to tell you.
I tested it with a video signal and an interlaced video on VHS (PAL 50 Hz - a lot of flicker!)
I think it's an active matrix LCD (it's a new product) but I really don't know.
Anyway, I could see both images interlaced so it means that 1/25 sec. time wasn't enought to turn to black all lines that the current eye hadn't to see.
Giorgio.

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