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Old 1st March 2010, 09:30 AM   #1001
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Update............ Just now received my Fresnels from Lensel,Pune

Will hunt for a LCD now...
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Old 2nd March 2010, 08:04 AM   #1002
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new updates
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Old 3rd March 2010, 11:58 AM   #1003
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Fresnel has one plain side and the other side is grooved....

My doubt is..for a splitted design how should i place the fresnels?

--->grooved side of higher focal fresnel should face the LCD or the Triplet?
----> Grooved side of lower focal fresnel should face the LCD or the MH Bulb?

I am planning to get the box done by a carpenter. but i am not sure about how to explain him about the schematic...say..how long will be the base board, where exactly he has to create grooves for fresnel...

someone please help.....
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Old 3rd March 2010, 12:53 PM   #1004
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hi bishnu.bhatta
in both the cases the groved sides should face towards the lcd

what is the specification of the tripplet and fresnels

size & focal length
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Last edited by yogender; 3rd March 2010 at 12:56 PM.
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Old 3rd March 2010, 02:35 PM   #1005
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Quote:
Originally Posted by yogender View Post
hi bishnu.bhatta
in both the cases the groved sides should face towards the lcd

what is the specification of the tripplet and fresnels

size & focal length
I am using the standard Lensel Fresnel only.
SINGLE FRESNSEL LENSES A4 SIZE
(a) SIZE : 310mm X 310mm
(b) FOCAL LENGTH: f = 216mm
(c) THICKNESS: t = 2.0mm
(d) PITCH: p = 0.5mm

SINGLE FRESNSEL LENSES A4 SIZE
(a) SIZE: 310mm X 310mm
(b) FOCAL LENGTH: f = 343mm
(c) THICKNESS: t = 2.0mm
(d) PITCH: p = 0.5mm

Triplet Lens (317mm FL)

I am still hunting for a perfect 15 inch LCD without any FFC issue.
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Old 6th March 2010, 02:46 PM   #1006
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Update : tried getting 15" LCD in mumbai. was offered HCL 15" second hand for 3500. Went ahead and bought an FFC cable and a 9.2" "Super" lcd tv with VGA for 4300. Display looks promising. have ordered the fresnel from lensel. Now wait begins !! Lamington road is fun to hangaround for such stuff in mumbai
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Old 7th March 2010, 01:00 AM   #1007
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Hi All,
I went through the forum most of it and it was pretty good. I really wish I could build one on my own.
Here's a request for anyone who's in Hyderabad.
Due to some personal reasons, I really don't think I can go hunting for all the parts. Is it possible for someone to help me out in getting a projector here. I would really appreciate any help building one.
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Old 7th March 2010, 03:31 PM   #1008
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what is the resolution of this 9.2" super lcd tv
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Old 8th March 2010, 02:20 AM   #1009
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Quote:
Originally Posted by yogender View Post
what is the resolution of this 9.2" super lcd tv
640x480.
16:9/4:3
16ms response time

saw other brands like victor/world tech. these were chinese. got 11" for 4300 and 5k. i stuck to this Super -> malay brand for 1. its been done already using this monitor by mak in this forum. so any help i can always mail him.
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Old 8th March 2010, 09:25 AM   #1010
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hi bishnu.bhatta

dont use a 15" wide screen monitor
the fresnels wont fit a 15" wide screen lcd
go for a 4:3 15" lcd

Last edited by yogender; 8th March 2010 at 09:27 AM.
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