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ramkishan (10-49 posts) Hobbyist
Joined: 27 Jul 2005 Posts: 32 Location: India
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Posted: Sat Jan 07, 2006 1:16 am Post subject: Unique Folded Design; Ceiling Mounted; All inputs;Long throw |
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I have built a LCD projector after studying various web sites and forums. The projector uses long throw lens and is mounted at ceiling height 22 feet from the wall used as screen for 10feet wide image. It has all inputs including component video, VGA, S video, TV Tuner and easy keystone correction. My study of various forums revealed that design of the enclosure should be such that it should be possible to adjust all the elements with precision and hence I made the enclosure with front opening for such adjustment and the projection lense is also mounted with similar adjustmet. Overall results are excellent. _________________ Ram Kishan
http://www.drtsolutions.com/Projector.htm
Last edited by ramkishan on Sat Jan 14, 2006 4:43 am; edited 4 times in total |
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jtemple (50-99 posts) Enthusiast
Joined: 11 Mar 2005 Posts: 79
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Posted: Sat Jan 07, 2006 3:13 am Post subject: |
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| Sounds interesting! Do you have some pictures to share? |
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ramkishan (10-49 posts) Hobbyist
Joined: 27 Jul 2005 Posts: 32 Location: India
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Posted: Sat Jan 07, 2006 10:49 am Post subject: |
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| jtemple wrote: | | Sounds interesting! Do you have some pictures to share? |
Dear jtemple,
Do you need pics of enclosure or the screen images? _________________ Ram Kishan
http://www.drtsolutions.com/Projector.htm |
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ramkishan (10-49 posts) Hobbyist
Joined: 27 Jul 2005 Posts: 32 Location: India
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ramkishan (10-49 posts) Hobbyist
Joined: 27 Jul 2005 Posts: 32 Location: India
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Posted: Mon Jan 09, 2006 3:37 pm Post subject: Unique enclosure design; ceiling mount;all inputs;long throw |
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| ramkishan wrote: | | I have built a LCD projector after studying various web sites and forums. The projector uses long throw lens and is mounted at ceiling height 22 feet from the wall used as screen for 10feet wide image. It has all inputs including component video, VGA, S video, TV Tuner and easy keystone correction. My study of various forums revealed that design of the enclosure should be such that it should be possible to adjust all the elements with precision and hence I made the enclosure with front opening for such adjustment and the projection lense is also mounted with similar adjustmet. Overall results are excellent. |
_________________ Ram Kishan
http://www.drtsolutions.com/Projector.htm |
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ramkishan (10-49 posts) Hobbyist
Joined: 27 Jul 2005 Posts: 32 Location: India
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Posted: Wed Jan 18, 2006 10:24 pm Post subject: |
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| ramkishan wrote: | | jlhobdey wrote: | | Ummm Did you mean to just keep posting the same quote over and over or am I having issues with my browser? I am using Mozila Firefox?? |
Dear jlhobdey,
There is slight difference due to editing based on various queries received directly or through mails in different forums |
Depending on queries in different forums, I have now updated my following web page to include materials used by us and their sources of supplies, web resources on diy projectors and links to our threads in different forums:-
http://www.drtsolutions.com/Projector.htm _________________ Ram Kishan
http://www.drtsolutions.com/Projector.htm |
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ramkishan (10-49 posts) Hobbyist
Joined: 27 Jul 2005 Posts: 32 Location: India
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Posted: Tue Feb 21, 2006 10:35 pm Post subject: |
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After continuous interactions in four forums, we have now added a bowl reflector and reduced the distance between the bulb and fresnel lens till the brightness became uniform from corner to corner. The brightness also increased and is sufficient for dark viewing. We also added a front surface coated mirror which improved sharpness as well as brightness, _________________ Ram Kishan
http://www.drtsolutions.com/Projector.htm |
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ramkishan (10-49 posts) Hobbyist
Joined: 27 Jul 2005 Posts: 32 Location: India
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Posted: Fri Feb 24, 2006 8:32 am Post subject: |
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Pictures shot on 24.02.06 are given on our web page http://www.drtsolutions.com/Projector.htm . The screen size is 120" at 22 feet from the projector placed at ceiling height on an almirah, using long throw lens. The brightness is quite sufficient for dark viewing. It can be further improved as at present it is at 50% default setting of LCD. _________________ Ram Kishan
http://www.drtsolutions.com/Projector.htm |
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ramkishan (10-49 posts) Hobbyist
Joined: 27 Jul 2005 Posts: 32 Location: India
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Posted: Fri Feb 24, 2006 4:07 pm Post subject: |
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| ramkishan wrote: | | Pictures shot on 24.02.06 are given on our web page http://www.drtsolutions.com/Projector.htm . The screen size is 120" at 22 feet from the projector placed at ceiling height on an almirah, using long throw lens. The brightness is quite sufficient for dark viewing. It can be further improved as at present it is at 50% default setting of LCD. |
 _________________ Ram Kishan
http://www.drtsolutions.com/Projector.htm
Last edited by ramkishan on Fri Feb 24, 2006 4:21 pm; edited 1 time in total |
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shardian (500+ posts) Aficionado

Joined: 25 Oct 2005 Posts: 575 Location: US-WV
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Posted: Fri Feb 24, 2006 4:26 pm Post subject: |
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| Your pictures are not showing up. |
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ramkishan (10-49 posts) Hobbyist
Joined: 27 Jul 2005 Posts: 32 Location: India
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Posted: Fri Feb 24, 2006 4:33 pm Post subject: |
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| shardian wrote: | | Your pictures are not showing up. |
I have posted the link as per the instructions here but picture is not showing up. If the link is posted in the browser, it shows up. While I am trying to find out as to how I should do it, you may kindly visit my web page. Sorry for the trouble _________________ Ram Kishan
http://www.drtsolutions.com/Projector.htm |
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astaples Site Admin

Joined: 26 Mar 2004 Posts: 1221 Location: USA (midwest)
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ramkishan (10-49 posts) Hobbyist
Joined: 27 Jul 2005 Posts: 32 Location: India
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Posted: Fri Feb 24, 2006 5:50 pm Post subject: |
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| astaples wrote: | I fixed the link above - it had me tricked as well! The reason it that there are certain characters that have to be coded. In the image above, here are the codings...
' ' replaced by '%20'
'&' replaced by %26
',' replaced by %2C
a complete listing of these types of codings can be found at http://www.blooberry.com/indexdot/html/topics/urlencoding.htm |
Alan, thank you so much, I will post other pictures now _________________ Ram Kishan
http://www.drtsolutions.com/Projector.htm |
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ramkishan (10-49 posts) Hobbyist
Joined: 27 Jul 2005 Posts: 32 Location: India
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Posted: Fri Feb 24, 2006 5:58 pm Post subject: |
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| shardian wrote: | | Your pictures are not showing up. |
You may kindly see the picture above. Actually Alan helped me in this, otherwise it was not possible for me. I will post other pictures tomorrow morning. Sorry for the trouble _________________ Ram Kishan
http://www.drtsolutions.com/Projector.htm |
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shardian (500+ posts) Aficionado

Joined: 25 Oct 2005 Posts: 575 Location: US-WV
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Posted: Fri Feb 24, 2006 7:31 pm Post subject: |
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Yeah, I had already went over to your website to check them out. Just wanted to make sure you knew they weren't showing up to the rest of us. By the way, I saw that Bollywood was doing a remake of Fight Club...I would be interested in seeing that.  |
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