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Old 2nd July 2007, 07:52 PM   #501
diyAudio Member
 
Join Date: Mar 2007
Default Did you removed the anti glare coating?

Hi badepapa,

How is your projector going? Had you removed the antiglare coating from the LCD panel? If yes, how is the improvement in image sharpness, brighness and contrast?
If you had already removed ag, then what method you followed to remove? Please mention for me.

Wishes for good projector soon.
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Old 3rd July 2007, 06:14 AM   #502
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Join Date: May 2005
Location: Noida
Default Reflector Assembly

Hi Dr. Vikram,

Yes, I am using a reflector assembly. I had bought a ready made reflector for MH Lamps. The one that comes for the 150 W lamp was a bit big. So I got a smaller one made holes on its side so that the holder can fit in and it works good for me. I am attaching the pic again.

Amit
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File Type: jpg litesrc.jpg (57.3 KB, 460 views)
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Old 3rd July 2007, 06:18 AM   #503
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Join Date: May 2005
Location: Noida
Default Removing Anti-glare coating

Hi Peterson,

I did not go for the kill yet. Will do it this weekend. Hope it works, otherwise it will be a big disappointment, as a lot of effort will go waste and money too .

Will update you guys on the coming Monday.

n e ways thanks a lot for ur wishes.

*Amit
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Old 4th July 2007, 05:28 AM   #504
jaudere is offline jaudere  India
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Join Date: Jun 2007
can anybody suggest reflecotrs for CFL lamps?
can silver paint withstand high temperature?

planning to buy reflectors for tablelamps and use them.
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Old 6th July 2007, 05:17 PM   #505
jaudere is offline jaudere  India
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Join Date: Jun 2007
Default reflector

could not find suitable readymade reflector. finally got some aluminium foil and used the protective casing of the CFL lamps itself to design the reflectors. works well.

started building the box for my second attempt, with mixed light source (LEDs + CFLs). how are you guys doing? no post for many days from anyone.

vikram
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Old 7th July 2007, 10:11 PM   #506
jaudere is offline jaudere  India
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Join Date: Jun 2007
Default Frustration

got my assembly right. got better brightness

but.... my LCD is now malfunctioning. the picture is not steady. it kind of flows into one direction, then slows down, stops and the frames start flowing in other direction. tried all sorts of things. went through the manual but could not rectify the problem

may be i have damaged the ffc cable. there are some kinks in it. and one of the tiny metal strips has come out partially. this is where things are out of my hands. will have to wait for the TV repairing guy to change the cable for me.

i hate this situation where i know that there is some problem but don't know what exactly it is. in medical language, it is idiopathic.
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Old 8th July 2007, 08:45 AM   #507
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Join Date: Mar 2007
Default USE UV filter

Try removing the panel from the projector and see. If the picture is ok, then the UV radiation from the MH lamp is causing the trouble. Use a toughened glass between the fresnel and lamp and see the results. toughened glass is the filter glass used in front of CRT monitor to reduce glare.

Praying for success.
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Old 8th July 2007, 01:31 PM   #508
jaudere is offline jaudere  India
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Join Date: Jun 2007
Default hmmm

thanks for the suggestion.
had thought about that. but the problem persists even after
putting off the lights.

another thing. i am using CFL and LEDs. so i don't know how important is UV radiation with these sources.

Vikram
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Old 9th July 2007, 07:32 AM   #509
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Join Date: May 2005
Location: Noida
Default Screwed LCD

HI,

This weekend did not bring any luck to me, rather I screwed my LCD panel.

To enhance the brightness I tried to remove the anti-glare coating, and I think I removed something else. B'coz after removing that coating the LCD is completely transparent, and there is no image seen on it.

It was a sheet type of coating which I removed with a lot of care, with no results.

One good thing is that if I put that sheet back, I can see the image on it, but I am not able to glue it that well as it was before.

I am attaching the pics here. If anyone can help me, it will be really great.

Amit
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File Type: jpg stripping.jpg (34.7 KB, 396 views)
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Old 9th July 2007, 07:33 AM   #510
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Join Date: May 2005
Location: Noida
Default Here is another one.

This is the one in which I completely removed that coating.
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File Type: jpg completestrip.jpg (34.7 KB, 387 views)
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