Ok Ive had this idea in my head for a DiY projector. I want to ultimately do the lilliput DiY for better results, But since this is my first crack at this typre of DiY with fragile TFT Lcd's i want to practice on something cheaper.
I am going to make one the same way someone else did, using the playstations 2.2" tft for the playStation controller. ( basically an lcd for your controller)
I was wondering what size mirrors do I use for it? I want to cut down the size considerably. Will any mirror will do, ex... makeup mirrors etc... As long as they're the right size?
What angle does it have to be at 45degrees?
The more expensive parts I will use, will be things I can re-use for the lilliput, like lenses and 250watt MH lamp/ballast.
Where's the cheapest place to buy these things? Home Depot, lowes?
Any help would be appreciated.
I am going to make one the same way someone else did, using the playstations 2.2" tft for the playStation controller. ( basically an lcd for your controller)
I was wondering what size mirrors do I use for it? I want to cut down the size considerably. Will any mirror will do, ex... makeup mirrors etc... As long as they're the right size?
What angle does it have to be at 45degrees?
The more expensive parts I will use, will be things I can re-use for the lilliput, like lenses and 250watt MH lamp/ballast.
Where's the cheapest place to buy these things? Home Depot, lowes?
Any help would be appreciated.
Good luck
I'm doing the same thing except with a PS One screen, it is 4.5" Good luck to you.
As far as mirrors go I think any would work😕
45 degrees is the norm.
For light sources I know that Electrical supply houses can be cheeper than HD or Lowes...also they have more than you will find at HD or Lowes
Good Luck
I'm doing the same thing except with a PS One screen, it is 4.5" Good luck to you.
As far as mirrors go I think any would work😕
45 degrees is the norm.
For light sources I know that Electrical supply houses can be cheeper than HD or Lowes...also they have more than you will find at HD or Lowes
Good Luck
scale everything down
If you use normal back surface mirrors after the LCD, you will get multiple reflections. Get a front surface mirror. Or you could try a piece of aluminized mylar glued to a piece of window glass, if you want to stay cheap. Hobby shops, craft shops, art supply places will have the mylar.
You can use mirrors at any angle you want, but the line from the center of the LCD to the center of the screen has to end up perpendicular to the screen, or you will get keystoning. Don't get too carried away: Each mirror absorbs about 7% of the light that hits it. You also need to figure out the right LCD orientation for the number of times the mirrors & projection lens invert it. (Upside down image is easy to fix. Backwards means you need to flip the LCD over.)
You might want to consider scaling down the lamp power and the projected image size. Your tiny screen will absorb at least 2/3 of that 250 Watts, over a very small area. It will get fried, unless you use a dichroic mirror to remove the heat. (Might get fried, even with it!)
surplusshed.com sells a 4.75" diameter cold mirror for $5 US. I just got one yesterday, and it works great: I tried it at a 45 degree angle about 3 inches from a 50 Watt halogen flood. I can see all the light being reflected and feel all the heat coming right through it.
If you use normal back surface mirrors after the LCD, you will get multiple reflections. Get a front surface mirror. Or you could try a piece of aluminized mylar glued to a piece of window glass, if you want to stay cheap. Hobby shops, craft shops, art supply places will have the mylar.
You can use mirrors at any angle you want, but the line from the center of the LCD to the center of the screen has to end up perpendicular to the screen, or you will get keystoning. Don't get too carried away: Each mirror absorbs about 7% of the light that hits it. You also need to figure out the right LCD orientation for the number of times the mirrors & projection lens invert it. (Upside down image is easy to fix. Backwards means you need to flip the LCD over.)
You might want to consider scaling down the lamp power and the projected image size. Your tiny screen will absorb at least 2/3 of that 250 Watts, over a very small area. It will get fried, unless you use a dichroic mirror to remove the heat. (Might get fried, even with it!)
surplusshed.com sells a 4.75" diameter cold mirror for $5 US. I just got one yesterday, and it works great: I tried it at a 45 degree angle about 3 inches from a 50 Watt halogen flood. I can see all the light being reflected and feel all the heat coming right through it.
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