DIY Rear Projection TV

[Nads]

<chuckles> asking the near impossible, but can do.

[lesko]

Hello,
I have been using drafting velum for my LL front projection screen for a while now and love it...it comes at 56" high and lets alot of light through...but it pretty defused so there is really no hot shot at all...I painted the back side of mine with alum. paint and get deep rich bright colors...better than blackout cloth...BC sometimes gets to washed out...you can pick this stuf up at any large print house (here in phoenix It's called Thomas Repro graphics) so I guess any Repro Graphics print house will have it...just ask for Drafting Velum...You can get any size but wide but only 56" high...
Staple gun it to some wood and so on...
you can also find the defuser film in large sizes that is inside a lcd. that would work great also
http://www.gestructuredproducts.com/...amer/index.jsp

anyway I just thought i would pass it on.

Lesko

[corryn00]

screen be here

I saw this and said "gotta show the guys on diy in case they need it"

Gordon

[slize]

i am palnning one of those to built...

[KANA007]

Hi Guys,

I have a dead 53 inch Sony crt rptv. Not widescreen. Can I
put an overhead projector in the bottom, on its side, and
shoot the image throuh the center crt lens? Leaving the center
lens where it is now mounted. It has a Delta78 with 4 inch lens.
I would like to use 15 inch lcd but a 7 inch lcd might fit better.

Here is a sketch.

Thanks

[ibleed]

Hello. New to this tread. Trying to understand things. Some people are talking about using lcd panels (ranging from 1.8" upwards) with 200W lamps or whatever and im wondering how they do this. Are these people taking the panels apart, removing the backlight and using one of their own?

[skullkeeper]

heres a good place to understand the hole psone lcd http://pg.photos.yahoo.com/ph/mydiaz....net/my_photos

[ancorp]

Originally posted by KANA007
Hi Guys,

I have a dead 53 inch Sony crt rptv. Not widescreen. Can I
put an overhead projector in the bottom, on its side, and
shoot the image throuh the center crt lens? Leaving the center
lens where it is now mounted. It has a Delta78 with 4 inch lens.
I would like to use 15 inch lcd but a 7 inch lcd might fit better.

Here is a sketch.

Thanks

Nope, that unfourtinately wont work. The CRT lenses are meant to be very close or completely up against the source, and only capture an image as big as its rear end. A 2-4" LCD might work (as far as I remember, a 4" lcd wont fit under a Delta 78)

Cheers,
Alex

[ancorp]

Originally posted by ibleed
Hello. New to this tread. Trying to understand things. Some people are talking about using lcd panels (ranging from 1.8" upwards) with 200W lamps or whatever and im wondering how they do this. Are these people taking the panels apart, removing the backlight and using one of their own?

Yup, than slap on some proper optics, cooling, and wiring, and off they go

Cheersm
Alex

[ibleed]

Ahhhh. Now i see.