Hello dear Taha,
First of all congrats for your fabulous job on your outstanding project!
It’s great to have experts like you in this community! guys like you help us
all the times and also give us hope (at least I get excited when you get
such great results!)
Anyway, it now more than a year that I’m working on multitouch screens and
I’ve mostly worked on experimental DI setups! but this time I’m in a tight
schedule to build a highquality one! so I thought that LLP suits my case
best! and I TRULY loved your results in Dubai Cityscape project! so I had
some questions and I thought no one would help me better than you in such
So let’s jump in:
1. Firstly I was fascinated by your projection screen and you’d mentioned
that it’s Blue Ocean acrylic rear projection screen and I searched for it!
but there were too many different results from different companies out
there! so I wanted to ask you if you could give me the exact name of it
(company, model...) and it’s URL address! and if it’s scratch resistable!
2. What was your video projector? you just mentioned that it’s Sanyo 4500
lumen projectors but what is the exact model?! and with what short throw
lens was it used exactly? ‘cause I was considering to use Epson EMP-400W
(which projects a 60” image in 64cm distance) but I wanted to use it in a
shorter distance most preferably without any mirror! so I wanted to ask you
if you think this is a good video projector and if I can use a short throw
lens with this video projector?!
3.What was the exact model of your IR Laser Modules? if you assembled a
diode with its circuit and power supply please tel me thier names and URL
addresses on the web! And if you know anything about Thorlabs IR Laser Diode
Modules please tell me if their solutions are good or not!
4. If you can give us a raw image input of your camera, please give me a
sample! (I wanted to see projection screen’s effect on the blobs!)
5. Do you know any video projector that gives us a 30” or larger image (not
80” in 8cm) but in 30cm or so throw distance! please give help me with it!
6. And the last but not least one, is if you can tell me what was your
camera’s lens (with URL address if possible) and if you know what would be
the result of using a 150 degree viewing angle lens? what happens with the
distortion? (’cause PS3’s 75 degree lens had <%1 destortion and didn’t suck
I know this was a very long letter but I’m really sorry! ‘cause I’m running
out of time and I’ve gotta give some reports by tommorow! so I emailed you
to contact you in a much more quicker time and I thought you could help me
with all of my questions!
So please tell me what should I do, and I’d be very very greatful to have
your answers as soon as possible! and I promise I’ll document all of this
disscution and my own results (albeit if you want me to do so)
Again I’ve gotta thank you and somehow you were my only hope in such short
time! so please help me!
Thanks in advance Taha,
I posted this here also because I thought maybe you, dear Taha, prefer to answer it in a public forum (or maybe he’s not checking his email anymore)
And I’d be greatful if anyone could help me with my questions ‘cause I’m in real need for help in short time!