Audio Project Amplifier Speaker Loudspeaker Kit
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external reflective mirror? - Click HERE for Original Thread
bajie
Hi,
I have a specical requirement because of the limited room space to place the projector and screen.

So here is what i am thinking, can i introduce an external mirror
to reflect lights out from a projector to a screen like what is illustrated here:
\
projector ---------------->\ mirror
| \
|
|
V
------------- screen


Is it feasible? is so, what kind of mirror i should be looking for?
Thanks a lot.

jie
bajie
The figure i put in somehow get distorted.
Here is another one:

* \
* \
projector -------------------> \ mirror
* | \
* |
* |
* V
* ------------
* screen
Netlist
Bajie,

This type of drawings don't seem to work out very well.
I changed it so everyone can see what you are talking about:

/Hugo :)
bajie
Thank you very much.
ukagr
my guess would be that it would work. But the farther away the mirror is from the projector the bigger the mirror would have to be. Which could be a problem if you wanted to position it a good distance away from the projector. Also i believe you would need a front side mirror which tend to be more expensive than a reg. mirror. But on a small scale, say 1 foot dist. btw the pj and mirror, that would mean another foot of throw distance that you didn't have before! If you try it out please share your results!
bajie
Thanks.
Do you happen to know any decent website where i can buy front side mirror?
I will definitily let the forum know the result.

jie
ukagr
i have heard of some people finding them on surplusshed.com. I haven't personally ordered from them before but they have some good optics stuff. But i have replaced the mirror in my 3m overhead projector with a regular mirror and didn't get any ghosting or at least i can't tell it. But that was a mirror 2"x3". Maybe you could try with a mirror around the house just to test with?

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