CMV1515 working with OHP (lots of pics) - Page 6

LOOie · 23rd November 2003, 02:29 PM

here is the inside, lifting the LCD..

note: i'm going to redo this frame now that i know what works. its a bit ugly and an electrical hazzard.

LOOie · 23rd November 2003, 02:51 PM

cost?

hmmm.. this is how much i've spent in Australian dollars so far.

1. 400w halogen OHP from e-bay. $165AUD
2. brand new CMV1515 $495AUD
3. 2 x 12" fresnel lens $80USD(inc shipping)
4. clear polycarbonate sheet (from hardware store)1m x 1.5m $40AUD
5. wood.. free

left over from something I found.
6. 2 x 10cm PC fans, free from several old PCs I have.
7. AT power supply for fans, $5AUD from PC markets.

overall.. i have most of the features of a mid-range 1024x768 commerical projector at about less than half the price of an entry 800x600 commerical projector so i'm reasonably happy..

Blue_aerox · 3rd December 2003, 08:56 PM

does plexiglass (or polycarbonate as you call it...... the same?) work as an uv-filter?

cruser · 4th December 2003, 12:08 AM

LOOie very nice results job well done!!! nice to see people exparament to find what works best for their setups, and post their findings you are a credit to this fourm

keep up the good work

hassler · 5th December 2003, 12:01 AM

Hi Looie,

Good to see your setup is working so well.

I don't want to start the split vs non split fresnel debate in this thread, however I did find the image to be significantly sharper when both fresnels were placed before the LCD.

I know you had trouble trying to get the whole LCD Shown on your screen because of the PCB. Did you try flipping the LCD so that the light enters from what originally was the front of the screen?

My setup is as follows,

yellow = 6mm Low e glass (very transparent)
blue = fresnel
pink = LCD

this setup allows me to place the LCD very close to the top fresnel and I hardly lose any of my screen area. The amount of glass I have between the LCD and the light also stops the LCD from heating up.

LOOie · 10th December 2003, 05:14 AM

Blue_aerox,
The local hardware store had 2 kinds of clear plastic sheets, clear acrylic and clear polycarbonate. They are huge, about 1m x 1.5m and is used for plastic windows for houses. the polycarbonate was a little bit more expensive but also had a UV reflective coating on one side(according to the manufacturer's label) which the acrylic did not have. You'll need to check this first.

I'm not sure what Plexiglass is exactly.. my guess is that it is the same as acrylic?

cruser,
thanks.. i'm only following your good example

i hope this will encourage more people here to do the same.

hassler,

yeah, the PCB was a pain but i found that this current setup works best for me.

i can seen pretty much the whole screen except a bit of the corners cut off but that doesnt bother me that much, my wall isnt big enough so that i could fit the whole screen on it anyway.

i think my setup a little different from yours as i'm using a projector setup, i.e. the OHP has a mirror at the top lens housing. i guess i could flip it but i will need another mirror.

what is 6mm Low e glass and where can you get it? the polycarbonate works very well but i wonder if glass will be better at stopping the heat.

hassler · 10th December 2003, 06:08 AM

Low e glass is made to absorb as little light as possible, much less than regular glass.

I got mine from Pilkington glass (they have stores nation wide), You can get 3mm sheets if you want, they only had 6mm in stock when I went to see them.

AirPlus · 2nd February 2004, 06:25 PM

Hi Looie, Brainchild

me and a few other guys from Germany bought that CMV 1515 display you were using for your projector. We saw your great results and now the 1515 is almost the reference for 15" projectors here, as these screens really rock.

Unfortunately no one has finished his projector here as we are just in the process of disassembling the displays.

Basicly we are very happy about the displays and with the results so far.

I were just wondering whether you solved the problem of that short ribbon cable in the right corner of the bottom of your tfts already and if might know a supplier, who sells lager ones.

Kind Regards

brainchild · 2nd February 2004, 07:02 PM

Hi AirPlus, I'm using my CMV in an enclosure which doesn't necessitate lenghtening the cable. LOOie came up with some arrangement for his OHP route.

ace3000_1 · 2nd February 2004, 07:13 PM

brainchild im on yahoo can u jump on for a min plzz bud?

Trev

2nd February 2004, 06:25 PM	#58
AirPlus diyAudio Member Join Date: Feb 2004 Location: Niedersachsen	CMV 1515 Hi Looie, Brainchild me and a few other guys from Germany bought that CMV 1515 display you were using for your projector. We saw your great results and now the 1515 is almost the reference for 15" projectors here, as these screens really rock. Unfortunately no one has finished his projector here as we are just in the process of disassembling the displays. Basicly we are very happy about the displays and with the results so far. I were just wondering whether you solved the problem of that short ribbon cable in the right corner of the bottom of your tfts already and if might know a supplier, who sells lager ones. Kind Regards

2nd February 2004, 07:02 PM	#59
brainchild diyAudio Member Join Date: Aug 2003 Location: east coast	Hi AirPlus, I'm using my CMV in an enclosure which doesn't necessitate lenghtening the cable. LOOie came up with some arrangement for his OHP route. __________________ DIY Video Projector Guide: http://lumenlab.com/forums

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23rd November 2003, 02:51 PM	#52
LOOie diyAudio Member Join Date: Nov 2003 Location: Australia	cost? hmmm.. this is how much i've spent in Australian dollars so far. 1. 400w halogen OHP from e-bay. $165AUD 2. brand new CMV1515 $495AUD 3. 2 x 12" fresnel lens $80USD(inc shipping) 4. clear polycarbonate sheet (from hardware store)1m x 1.5m $40AUD 5. wood.. free left over from something I found. 6. 2 x 10cm PC fans, free from several old PCs I have. 7. AT power supply for fans, $5AUD from PC markets. overall.. i have most of the features of a mid-range 1024x768 commerical projector at about less than half the price of an entry 800x600 commerical projector so i'm reasonably happy..

3rd December 2003, 08:56 PM	#53
Blue_aerox diyAudio Member Join Date: Dec 2003 Location: Utrecht	does plexiglass (or polycarbonate as you call it...... the same?) work as an uv-filter?

4th December 2003, 12:08 AM	#54
cruser diyAudio Member Join Date: Jan 2003 Location: U.S.A	LOOie very nice results job well done!!! nice to see people exparament to find what works best for their setups, and post their findings you are a credit to this fourm keep up the good work

10th December 2003, 05:14 AM	#56
LOOie diyAudio Member Join Date: Nov 2003 Location: Australia	Blue_aerox, The local hardware store had 2 kinds of clear plastic sheets, clear acrylic and clear polycarbonate. They are huge, about 1m x 1.5m and is used for plastic windows for houses. the polycarbonate was a little bit more expensive but also had a UV reflective coating on one side(according to the manufacturer's label) which the acrylic did not have. You'll need to check this first. I'm not sure what Plexiglass is exactly.. my guess is that it is the same as acrylic? cruser, thanks.. i'm only following your good example i hope this will encourage more people here to do the same. hassler, yeah, the PCB was a pain but i found that this current setup works best for me. i can seen pretty much the whole screen except a bit of the corners cut off but that doesnt bother me that much, my wall isnt big enough so that i could fit the whole screen on it anyway. i think my setup a little different from yours as i'm using a projector setup, i.e. the OHP has a mirror at the top lens housing. i guess i could flip it but i will need another mirror. what is 6mm Low e glass and where can you get it? the polycarbonate works very well but i wonder if glass will be better at stopping the heat.

10th December 2003, 06:08 AM	#57
hassler diyAudio Member Join Date: Aug 2003 Location: Gold Coast	Low e glass is made to absorb as little light as possible, much less than regular glass. I got mine from Pilkington glass (they have stores nation wide), You can get 3mm sheets if you want, they only had 6mm in stock when I went to see them.

2nd February 2004, 07:13 PM	#60
ace3000_1 diyAudio Member Join Date: Mar 2003 Location: spain	brainchild im on yahoo can u jump on for a min plzz bud? Trev

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