Multimedia Projector

I think many would like to have a home theater at home. If you have already thought about this, then you probably faced the question - how to make a big screen? If you buy a TV, it will cost you a pretty penny, and even a large TV with a diagonal of one and a half meters will not create the impression of a cinema. Another option is to buy a projector. Of course, the idea is also a lot of expensive, plus you can hardly find any components, and if you find them, they are expensive. This is what I mean the projector lamp, and it does not last for a long time. But while using a real projector at home, you can create a real cinema hall. There is a third way I went - to make the projector myself. For the article, this does not matter, but I’ll still tell you why I decided to take this step. I had a dream in my head for several years to build my home theater. And now a girl appeared in my life ... And I can’t even imagine what a desire I had to invite her to watch a movie in a movie.In our rundown town, in addition to numerous pubs, there are no sights and there is practically no, but we only heard about cinemas. So I decided to build my own. In general, whatever the goals were, we will proceed. Parts and accessories. After rummaging through the Internet, I ordered the following by mail delivery: two Fresnel lenses with a focal length of 220 mm and 317 mm, a lens of 80 mm / 1: 4 / FR = 320, well, and the heart of the projector is an LCD matrix with a diagonal of 15 mm and a resolution of 1024x768.
 do-it-yourself projector
I ordered a case on a power-saw bench, I designed it myself, during the assembly a lot of shortcomings were revealed.
do-it-yourself projector
Light. Powerful LED and driver for it. LED power 100 watts. It was all sent straight from China.
projector do it yourself
Assembling a projector. First, let's analyze the monitor.
do-it-yourself projector And we very carefully extract the matrix itself.
 do-it-yourself projector
OnThe front of the matrix is ​​film-anti-glare. You can certainly leave it, but I preferred to remove, thereby improving the image quality. It is removed like this: it is wrapped with wet napkins or a towel and left for 10 to 12 hours. Then it is carefully removed.
 do-it-yourself projector
Check functionality after removing anti-glare.
projector do it yourself
Everything works. Now we are going to build the case.
the projector with our own hands
We adjust the shadings on which the matrix and lenses of the Fresnel will be fixed
 do-it-yourself projector
Attach lenses with conventional screws, ribbed side of the lens inside.
 projector with your own hands
Yes, I forgot say about buying a radiator with a cooler from a computer. I installed an LED on this radiator, smearing the surfaces with a conductive paste for better contact. For reference: a powerful 100W LED light intensity is equivalent to a 400W metal halide lamp.
projector do it yourself
Insert and attach the driver and heatsink to the case.
do-it-yourself projector
Check and some disappointed: our Chinese friends sent a defective LED - one section is off .... Well, okay .... Plus, the driver heats up and decided to reinstall it.
do-it-yourself projector
We grab our box with lenses, insert the matrix in the middle. The matrix in the image should be rotated 180 degrees relative to the top and bottom and turned upside down. In other words - where the top is, there should be a bottom and where the left edge, there should be a right one. This is done so that everything would be projected correctly, as the lenses turn the whole image over.
 projector with your own hands
Fix. lens with a focal length of 220 mm to the LED.
 do-it-yourself projector
Turn on and experimentally find the fastening point of our wrapping box,so that the light on the screen is distributed evenly.
 do-it-yourself projector
 do-it-yourself projector
Here I have a nice picture when projected on a wall with wallpaper. 2.5 meters diagonal.
do-it-yourself projector
 do-it-yourself projector
do-it-yourself projector

do-it-yourself projector
Further solid settings, removing the wires, bringing to mind. As a result, this is what happened.
do-it-yourself projector
The result of the projector is when projected on a regular sheet.
 do-it-yourself projector

projector with your own hands
Especially for -www.sdelaysam-svoimirukami.ruthere used to be such a design. To build it took me two months in total and money less than 10 tr. In my worthy. We still have to do the screen, but more on that later .... To my deep regret after I finished building the projector, I was left without a girl, it’s not because I’ve built it for so long, but it just happened ...
In any case, the necessary thing-in the household is useful). I hope you enjoyed my life and technology article. Thanks for attention - good luck!


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