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
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
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.
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.
mrcoolbuddy said:
Hey... I bought the LCD from Mumbai as I had gone there for Diwali. It's a 7" screen with 16:9 aspect ratio, and built in tuner. It came for 3750/-. I dunno where in B'lore can we get the same type of screen, but you can visit SP road and hunt for it. I am planning to go there this saturday, so let me know if you wanna accompany..!!
Hi,
I have been following this thread for a while, and I am interested in the DIY projector too.
mrcoolbuddy:
For LCD panels (for ones used in car), try JC road also - lot of automobile accessories and spares.
Alternate can be National Market (close to Tribuvan theatre, near Majestic).
And yes, please post your findings.
Best of Luck !
I have been following this thread for a while, and I am interested in the DIY projector too.
mrcoolbuddy:
For LCD panels (for ones used in car), try JC road also - lot of automobile accessories and spares.
Alternate can be National Market (close to Tribuvan theatre, near Majestic).
And yes, please post your findings.
Best of Luck !
I stripped the LCD this weekend... and also got the FFC cables from the local market.... one for the control boards, and other for the LCD. It cost me Rs. 70/- and Rs. 200/- respectively. But these are kinda plain FFCs and not extension cables. While I could manage to link both the LCD control boards with one of the FFCs, just wondering how can I extend the LCD panel thru the control board with this plain FFc. Any inputs..???
Maks.
Maks.
Maks this is how i managed to make an extension for my LCD side cable using the simple FFC cable.
I use only 16pins the rest are blank
Could not mail ur Fresnel and triplet today ... the Courier guys did not accept it shall mail it tommorow
Cheers
Mastero
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
I use only 16pins the rest are blank
Could not mail ur Fresnel and triplet today ... the Courier guys did not accept it shall mail it tommorow
Cheers
Mastero
- Status
- This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.