ohh sorry guys i took too long to reply...
when i posted the above it went for moderator approval and next day also it dint show up so i thought it may never show up. then i forgot password and forgot about the this thread...forgive me.
Congratulation !! This would be great if you can provide the result image, also detail information , as how's you design all !!
looking for positive reply !!
maxpower, the project is just in pretty wierd state as of now because i assembled and tested it in haste just to see how results are. and they were great hence couldn't take shots.
the hurdles are ,
400w MH lamp is as hot as sun. lcd display produce black spots due to heat , within seconds.
the projected image is 3 meter x 3 meter from a distance of 3 meter . too big for an average home. felt as if in front row of 70mm theater.
What is the LCD you are using and how much it costs? I got bad LCD and broken but thinking to buy best and cheeper for HD projection
abhineo, initially i used 7 inch (rs.3500)display. but then it was too grainy and unpleasant to watch movies.
then i had three options,
use a 15 inch lcd monitor .
use a small chinese gaming ipad or android pad lcd which comes for 6000-9000 inr this was great idea but i cannot connect it to my present audio setup or dvd player.
then i googled and got a small lcd tv through ebay
i bought Curtis 13.3''lcd tv through ebay. it costs 124 dollars.
though it was dearer option but solved many of issues as it have remote controls,rgb inputs, blah blah.
the fresnel lens are from 3dlens,330mm and 220 mm focal 40 cm wide. i think front lens of 330 mm is not sufficient i may need 550 mm for it.
the reflector lamp shown in the figure is old one sorry for that, i uploaded by mistake.
for the reflector i used round headlamp reflector of public bus/ ambassador car. i cut the lamp hole bit larger to accommodate the mh lamp and voila light is higly focussed and intensity is stellar..good thing about car reflector is, it is metal and very shiny.
....will update regularly.