Hey! About time for an update on my project. And i started a new thread. Hopefully someone of the staffmembers can remove my earlier thread. It´s confusing i am sure. Ill post some pictures and hopefully i´ll get time for some appmovies aswell. Got a short one already though
As you can see i went back to lcd during th testing stage of my projet. I will update with more info and pictures! Please post questions if you got any.
http://www.youtube.com/watch?v=xk3ULzrrCYY

DSI - LCD

Table:
Wood base with MDF surfaces.

Layering, From the top:
--- Glass, 6 mm ---
--- Airgap, around 5-10 mm or so. ---
--- Endlighten 8 mm --- Led stripes 850 nm around the whole Endl.sheet.
--- LCD-matrix, 32 “ LCD TV ---
--- Semitransparent plasticsheet, around 0,1 mm i´d say ---
--- Plexiglas - 8 mm ---

---Webcam, Ps3 with bp ---
--- Original lcd backlight ---

Steelframe in a l-shape that the plexiglas rests on. The glass rests on the top of the steelframesides.

For the time beeing i only use around 27” of the 32 “ screen. This is due to problems with week blobs in the edges of the screen, caused buy the fisheyelens i think. Havnt figured this one out yet but i guess the 2 or even 4 cam solution would sort this out i am sure.

Software:
-PC running Win 7
-CCV 1.3

Nice
Looks brilliant, where abouts are you located?
Cheers
Tim

Thanks! I´m in Sweden.

Thats one nice table
We were going to try one like it but the backlight issue scared us, yours looks like a commercial solution, great work
Tim

Yeah, thanks. The backlight issue is a tough one. I tested with a smaller setup before this one and i got no good results with the standard backlight, but took everything apart. This time i used the original backlight from the lcd and just went and extended the cables for it. Works really well. I forgot the diffuser on in the first post. It´s a semitransparent plasticsheet. Works good enough!

It looks a nice setup.

What is the brand/model of the LCD TV set you took the LCD matrix from?

Thanks! The lcd-tv is a Camo 32 “, SG-32T6-A2. http://www.swedx.se/product_info.php?products_id=339. It cost me like $300 new. Although i can see that the price isnt that low anymore. More like $370 now. Anyway its a samsung matrix in the tv and it ´s very easy to take apart. No FFC issues, i just extended the cables for the backlight in my setup.
Cheers!

hi Limpa nice setup
5 month ago i made setup like yours but i didn’t like it because endlighten particles made it so blurry.
do you have the same problem with that or not?

Hey and thanks.
I don´t have any problems with blurryness. Picture is very crisp. No problem reading text or anything.

EDIT, added a new picture. Topview to show picturequality. Hard to get a good photo but i hope it helps some.

i didn’t have problem with reading text neither but i found FTIR better that DSI
have fun with your great table

Beautifully done and quite inspiring!

Thanks for your kind words!
go reds! cheers!

Hi Limpa, I’m going for a setup very similar to yours. I have a question about the airgap, is it necessary? I’ve been told different things by different people and read different things in different places on this. Also, I’m going to be using osram sfh 485 led’s which are 880 and already have my ps3 custom from peau with the 880 nm bpf, do you know if the swedx camo backlight is going to be compatible with these?

Hey!
The airgap should not be necessary according to my tests, although the smallest gap i have been able to produce in testing is like 1 mm or so due to my framing. Havent got a result on the -no-gap-what-so-ever-setup- i guess.
I dont know if the backlight will cause problems with the 880 filter. I have an old frame with like 90 osrams solderd at home that i first started with. I still have some filters for that aswell. Maybe i could test this, if you could wait until saturday or sunday.

Anyway, the reason that i went for the led-strips is that a DSI setup needs aloooot of ir-light flooding the end-plx. The frame with ir-leds didnt have enough light in my setup. I dont know if anyone have had a success with dsi and osrams. A valid question when building dsi-coffe-table would also be camera/lens/filter FOV. DSI produce week blobs, atleast in my experience, at the edges and this makes it hard to get good blobs when using fisheyelenses. This would not be a problem with higher builds i guess.

as the LCD has a polarized layer that stops IR how did you manage to recognize blobs?

Limpa - 25 January 2010 01:40 AM

Hey! About time for an update on my project. And i started a new thread. Hopefully someone of the staffmembers can remove my earlier thread. It´s confusing i am sure. Ill post some pictures and hopefully i´ll get time for some appmovies aswell. Got a short one already though
As you can see i went back to lcd during th testing stage of my projet. I will update with more info and pictures! Please post questions if you got any.
http://www.youtube.com/watch?v=xk3ULzrrCYY

DSI - LCD

Table:
Wood base with MDF surfaces.

Layering, From the top:
--- Glass, 6 mm ---
--- Airgap, around 5-10 mm or so. ---
--- Endlighten 8 mm --- Led stripes 850 nm around the whole Endl.sheet.
--- LCD-matrix, 32 “ LCD TV ---
--- Semitransparent plasticsheet, around 0,1 mm i´d say ---
--- Plexiglas - 8 mm ---


---Webcam, Ps3 with bp ---
--- Original lcd backlight ---

Steelframe in a l-shape that the plexiglas rests on. The glass rests on the top of the steelframesides.

For the time beeing i only use around 27” of the 32 “ screen. This is due to problems with week blobs in the edges of the screen, caused buy the fisheyelens i think. Havnt figured this one out yet but i guess the 2 or even 4 cam solution would sort this out i am sure.

Software:
-PC running Win 7
-CCV 1.3

Hey!
I hear this all over the forum and starting to think that ppl spreading this has never actually tested this setup, but what do i know.
For me, i have tested two different lcd matrix´s, One small HP 17 “ and this 32 “ Camo tv. Neither has any problems letting thru ir-light from either side. 850nm light in my case. I can recognize blobs in any way i turn things so i have not encountered this lcd-ir-filter-thingy.