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Old 30th October 2006, 04:58 AM   #41
budhi is offline budhi  India
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Join Date: Aug 2005
Hi pcaddict,
Good Hunting!
Now you are really going at it.
The page magnifyier should be on the light source side and the thicker fresnel towards the projection optics side
But you have to judge it for yourself, that which of your two lenses is better for the image quality and take that decision.
the LCD has to be closely sandwiched between the two fresnels with about a 1cm gap on both sides.
Optics is a crazy science all lenses react differently to each other. The trick that I used is that keep your LCD aside as it is the most expensive and delicate part of the projector, one wrong tug at the FFC cable and your LCD is history.
Make a dummy screen of the same dimentions, with a cardboard sheet ,and slip into it a ohp sheet with some markings on it.
Use this to play around with your light source and mark all dimentions in a cardboard mock-up box to control light scatter. Once you get an image of the required quality and size, then go in for the final box and lcd placement.
Best of luck.
And yes smooth sides of fresnel are towards the lcd on both sides
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Old 30th October 2006, 09:59 AM   #42
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Join Date: Oct 2006
Hi Budhi,

can u give me the specifications of the fresnel u used?
Sorry to trouble man..

Thanks,
Cool
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Old 31st October 2006, 01:18 PM   #43
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Quote:
Originally posted by mrcoolbuddy
Hi Maks,

Im also from Bangalore...
Can u tell amy place where i can get Mettal halide lamps and the ballast for it?


Thanks,
Cool

Hey mrcoolbuddy.... sorry for the delayed response. I had gone to my hometown, Mumbai, for Diwali celebrations.
Well, I bought the MH lamp with fittings from a shop named Prestige Lites on the CMH road. It cost me 1900 re. with ballast and fittings.

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Old 31st October 2006, 01:20 PM   #44
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Quote:
Originally posted by mrcoolbuddy
Hi All,

Can you please give me the specifications for the fresnel lens, the condensor lens and the final Focusing Lens?

Wats the diameter, width, height, focal length any other specifications etc....

Does anybody where in bangalore we get all these cheaply?


Thanks,
Cool

I searched the whole of Bangalore upside down.... but couldn't find any dealers for lenses... One friend of mine is helping me to get these from a source he knows.
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Old 1st November 2006, 06:37 AM   #45
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Join Date: Oct 2006
Default Thanks Maks

HI Maks,

Thanks a lot buddy....
now that i can also buy the lamp from there..

Can u just give me the specification of the mettal hallide lamp n ballast u purchased so that i can buy the same?

Once u get the info on where to buy fresnel lens pls do tel me too.

thanks again.

Cool
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Old 1st November 2006, 06:44 AM   #46
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Default Re: Thanks Maks

Quote:
Originally posted by mrcoolbuddy
HI Maks,

Thanks a lot buddy....
now that i can also buy the lamp from there..

Can u just give me the specification of the mettal hallide lamp n ballast u purchased so that i can buy the same?

Once u get the info on where to buy fresnel lens pls do tel me too.

thanks again.

Cool

Hey... I do not remember the model no. for the lamp, but it's a 150W MH lamp, OSRAM make. Actually, U need not bother abt all this... jst go to the shop ans ask for it... the owner is Dinesh Kumar.. he'll help you out.. btw, which part of Blr r U put up in?
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Old 1st November 2006, 06:51 AM   #47
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Join Date: Oct 2006
Thanks again Maks...

Im stayg near BTM Layout 1st phase.....which part r u from?

I did ask some places for fresnel lens...But of no use...
If u get info pls do tell.

Thanks
Cool
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Old 1st November 2006, 08:28 AM   #48
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Hi Fellow Diyers,

Iam from India too but currently living in srilanka. Were do you guys get your lens and lcd. How about sharing the information in this thread so what other like me will be able to get the same...

Item,Shop Name, City and Price

Well we can get everything from LL but the shipping is the killer.
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Old 1st November 2006, 08:33 AM   #49
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I bought the LCD screen from a local market here... the set of Lenses is being arranged by my friend from Lensel Optics, Pune. Look out for their website.
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Old 1st November 2006, 12:04 PM   #50
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Thanks Max

Can u tell me from which local market u bought the LCD..n for how much?
can u give me the exact location since im also from bangalore....


Cool
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