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Old 06-21-2009, 07:47 AM #1
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Default what's this???

hi... I disassembled PHR803 and I found this (on photo) under the colimating lens (or what's it) & it looks like mini LCD display... does anyone know what's this???
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what's this???-p1012706.jpg  


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Old 06-21-2009, 03:41 PM #2
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Use the search button............................................ ........
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Old 06-21-2009, 07:26 PM #3
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Default

Quote:
Originally Posted by phoenix77 View Post
Use the search button............................................ ........
I searched and didn't found. I neither know this. Someone?
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Old 06-21-2009, 07:46 PM #4
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Default

thats a photo multiplier pick up screen

naw i have no Idea sorry lol
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Old 06-21-2009, 09:33 PM #5
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Default

shine your laser trough it... wear saftey glasses!
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Old 06-22-2009, 08:40 AM #6
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Default Re: what's this???

It is a error/tilt mode compensator array. It IS a LCD with high speed driver electronics. It effectively corrects the error signal from slight warpage or scratched/dirt on the disk allowing a better read.

I found that one of the Toshiba PHR drives with one of these things will rip almost anything you put in it even if pretty banged up.
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Old 06-22-2009, 03:38 PM #7
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Default Re: what's this???

Quote:
Originally Posted by phoenix77 View Post
Use the search button............................................ ........

Way to help out old man.
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Old 06-22-2009, 04:42 PM #8
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Default Re: what's this???

Quote:
Originally Posted by sportcoupe View Post
Way to help out old man.
yeah you too.



and as it was said above its pretty much to assist in reading scratched discs
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Old 06-23-2009, 12:35 AM #9
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Default Re: what's this???

Quote:
Originally Posted by thesk8nmidget View Post
yeah you too.



and as it was said above its pretty much to assist in reading scratched discs

Yup. Didn't you see my ? Phoenix and I are at least twice the age of 90% of the members here. I was making a little fun, how can you search for something if you don't know what it's called? LOL.
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Old 06-23-2009, 12:39 AM #10
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Default Re: what's this???

I think it's called a wavefront aberration corrector.
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Old 06-28-2009, 12:09 AM #11
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Default Re: what's this???

Something like that. It's a variable phase retarder. If you know how to use one, it's pretty cool. Regular LCD panels unfortunately lack the driver logic and drive current to make good variable phase retarders, but I figure you can probably overdrive the colon in a stock 00:00 type LCD display, so if you strip off the polarizers, that might get a useful speed at some specific temperature. There are still some things you won't be able to do, like creating a radial or helical beam polarization, but the hack might still be used for Q-switching, cavity dumping, shutter control, modulation, twisted mode, unidirectional ring lasers, interferometry and so forth. Not sure what kind of power density such a panel can take, though. Good bet the one in the PHR is faster and can take more power.
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