Search the web
Sign In
New User? Sign Up
DIYProjectionTV · DIY Projection TV - CRT TV (not LCD)
? Already a member? Sign in to Yahoo!

Yahoo! Groups Tips

Did you know...
Real people. Real stories. See how Yahoo! Groups impacts members worldwide.

Best of Y! Groups

   Check them out and nominate your group.
Having problems with message search? Fill out this form to ensure your group is one of the first to be migrated to the new message search system.

Messages

  Messages Help
Advanced
Messages 1287 - 1316 of 1378   Oldest  |  < Older  |  Newer >  |  Newest
Messages: Simplify | Expand   (Group by Topic) Author Sort by Date ^
1287
I was looking at possible choices for fresnel lenses, mostly browsing www.3dlens.com . I apologize if these have already been answered, but I could not find...
nanu_89
Offline
Mar 2, 2007
4:22 am
1288
Actually, I found a "Delta 78" convex projection lens with a diameter of 114.3mm and a focal length of 35.56mm, but obviously this isn't suitable for front...
uconn700
Offline Send Email
Mar 2, 2007
4:23 am
1289
Answer1: tv screen and lens for focal length answer2: It can be double or triple the screen... The bigger it is, the better it is. answer3: Never heard of a...
Rémy ATALLAH
alloremy
Offline Send Email
Mar 2, 2007
9:09 am
1290
Did you say 35.56mm? Way tooo short focal length. That means that you have to fix it at 3 cm away from the screen. You should have a very small screen for that...
Rémy ATALLAH
alloremy
Offline Send Email
Mar 2, 2007
9:24 am
1291
1. Everything - http://lumenlab.com/focal_calc.php 2. Not sure, sorry. 3. I'm pretty sure that a 19" screen would work better, since it would have a bigger...
uconn700
Offline Send Email
Mar 2, 2007
2:44 pm
1292
I have built my first projector with built in mirror which works sort of (blurd picture no matter how focused). I have used a fresnal lens 7"x6" from ebay on a...
marty250uk
Offline Send Email
Mar 5, 2007
2:28 pm
1293
You would be certainly better with a hard acrylic fresnel lens compared to these cheap palstic fresnel lenses on ebay marty250uk <marty250uk@...> a...
Rémy ATALLAH
alloremy
Offline Send Email
Mar 6, 2007
12:02 am
1294
What difference would 200mm focal length make to 300mm? Marty. ... compared to these ... which works sort ... lens ... where ... questions ! Profitez des...
marty250uk
Offline Send Email
Mar 7, 2007
10:49 pm
1295
Well if my math is correct about 100mm difference in focal length. marty250uk <marty250uk@...> a écrit : What difference would 200mm focal...
Rémy ATALLAH
alloremy
Offline Send Email
Mar 7, 2007
11:28 pm
1296
... picture size. In DIYProjectionTV@yahoogroups.com, Rémy ATALLAH <alloremy@...> ... would 200mm focal length make to 300mm? ... better ... questions !...
marty250uk
Offline Send Email
Mar 8, 2007
4:06 pm
1297
Nobody can take a joke anymore these days. I certainly can't answer your question because it all depends of the size of your tv screen and the size of the...
Rémy ATALLAH
alloremy
Offline Send Email
Mar 8, 2007
5:52 pm
1298
Is there any place that I could find a lens in town at a store or optical office? I would like to do it without ordering things off the interent. Thanks for...
patgabor2002
Offline Send Email
Mar 9, 2007
3:26 pm
1299
Thanks for that i am learning more all the time. I read some where that I should be using a 100mm dia convex lens with a focal length of 500mm but I can not...
marty250uk
Offline Send Email
Mar 9, 2007
3:26 pm
1300
Remy, Have you posted the new photos somewhere? Thanks ... questions ! Profitez des connaissances, des opinions et des expériences des internautes sur Yahoo!...
croma_clear1
Offline
Mar 11, 2007
10:00 am
1301
No, I'm still trying out my new screen idea, I'm getting tomorow the new reflective paint which is going is going to be mixed with glass beads. The guys I'm...
Rémy ATALLAH
alloremy
Offline Send Email
Mar 11, 2007
10:43 am
1302
Nice to hear that you are still experimenting ...however it would be also nice for all to see a couple of pictures of the existing set up/projection which you...
croma_clear1
Offline
Mar 12, 2007
9:50 am
1303
Is the English version for sale? if so how much and where from? ... the ... reflective. ... from ... projector ... elevator. ... vos...
marty250uk
Offline Send Email
Mar 13, 2007
12:37 am
1304
Hi, I haven't done yet the english version. I'm thinking of doing it if the demand is high enough. The package: CD + lens would be around 29 $. I could ship it...
Rémy ATALLAH
alloremy
Offline Send Email
Mar 13, 2007
9:30 am
1305
Does anybody sit and watch a CRT projector. I have done a lot of experimenting and have a working projector with the picture 6 feet wide the right way round...
marty250uk
Offline Send Email
Mar 14, 2007
1:06 am
1306
If you want to buy a projector, later this month, I'm probably going to start selling 720p LCD projectors for $350 each....
uconn700
Offline Send Email
Mar 14, 2007
10:13 pm
1307
Here's one who gave up! Away he goes to the LCD projector's world... uconn700 <buu913@...> a écrit : If you want to buy a projector, later this month,...
Rémy ATALLAH
alloremy
Offline Send Email
Mar 14, 2007
10:23 pm
1308
This is your english version Remi enjoy! can you send me a lens to INDIA?? warm regards, Syed alloremy <alloremy@...> wrote: Hi Everybody, It's been a...
dhp met
dhpmet
Offline Send Email
Mar 15, 2007
4:23 am
1309
Hi Syed, I had a little laugh reading the english version of my sales page. It sounded more chinese to me than english. If it was that simple to give a...
Rémy ATALLAH
alloremy
Offline Send Email
Mar 15, 2007
10:24 am
1310
You could do worse than post results of your projection here...it really would be easy to post some shots..it does not take long..go on give it a go..perhaps...
croma_clear1
Offline
Mar 15, 2007
12:48 pm
1311
Hi croma, If you want a snapshot of the projected image on the projection screen, you find one on my sales page: www.toutdentaire.com/videoprojecteur.html It's...
Rémy ATALLAH
alloremy
Offline Send Email
Mar 15, 2007
6:40 pm
1312
Rémy why not just do the English conversion and put a price on for the package, people could then just buy it if happy with the price. It sounds like you have...
marty250uk
Offline Send Email
Mar 16, 2007
12:06 am
1313
Helo eveyone go to the link to remis ENGLISH VERSION Remi has done excellant work on this project... croma please note ..cut and paste he link in ur browser ok...
dhp met
dhpmet
Offline Send Email
Mar 16, 2007
4:22 am
1314
Thanks Sayed the link works fine. Though I had already google translated remy's url a while back. Thanks anyways for your consideration. ... ...
croma_clear1
Offline
Mar 16, 2007
8:59 am
1315
I've already suggested that if there was sufficient demand for the english version then I would do it. That's why I asked, in my previous posts, member's who...
Rémy ATALLAH
alloremy
Offline Send Email
Mar 16, 2007
9:07 am
1316
(first of all - 2nd attempt at post) Not sure whats wrong today with yahoo..Im having trouble posting..so apologies if I double post..mods if so please delete...
croma_clear1
Offline
Mar 16, 2007
9:22 am
Messages 1287 - 1316 of 1378   Oldest  |  < Older  |  Newer >  |  Newest
Advanced
Add to My Yahoo!      XML What's This?

Copyright © 2009 Yahoo! Inc. All rights reserved.
Privacy Policy - Terms of Service - Guidelines - Help