iMirror
Posted: 10 January 2013 03:35 PM   [ Ignore ]
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Hi all,

I have seen recentrly a video concept showing someone using a touchable mirror.

The system is an iOS like and that is why named iMirror :

Well I ask myself how to build such a device! Or at least, kind of build smile.

Of course I do not want to destroy my bathroom by replacing the current mirror with some Acrylic…

As PeauProduction suggests in this thread

So I am coming with kind of a solution ...

Actually I dont know if it really is possible ...

Take a look at the schema it shows this LLP solution…

Of course I have some questions on this :

1) Do you think it can actually work ?

2) Can lasers reflect on touching the surface, and so cause damage to the person in front of the mirror…

3) Can I find such a pico projector ?

4) Which paper would be best ? The perfect one would be some that is not sensitive to water ...

5) If not possible for you what would be your solution !

Thx for reading, any advice is welcomed !!!

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Posted: 11 January 2013 05:45 AM   [ Ignore ]   [ # 1 ]
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I don’t think you can use a diffuser on the mirror, because it would destroy the mirror effect. Therefor you can’t project the image from the front.
In a closeup shot in the video it looks they they use a capacitive display foil.

You can use LLP on a mirror - mirror/acrylic does not matter, the light is reflected anyways. As long as you adjust it to be parallel, it’s safe.

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Posted: 11 January 2013 07:34 AM   [ Ignore ]   [ # 2 ]
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Okay, about the lasers that was I thought ... at least if you do not touche the surface.

But what will happen when you touch the surface. Won’t the lasers be reflected on the mirror, where your fingers are touching the surface ?

I don’t really understand how the lasers produces blobs ... Aren’t they produced by the ir light scattered as FTIR ?

And so if scattered they can be reflected by the mirror behind therefore come to your eyes .. no ?

Well for the projection… how would you do it ?

Projecting on a mirror, kind of tricky smile ..

Is a paper diffuser necessary opaque ? Arent there transparents ?

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Posted: 11 January 2013 07:43 AM   [ Ignore ]   [ # 3 ]
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ah, about the video, as I said, it’s not a “real video”, it’s a concept made with aftereffects and adobe photoshop ...

Sorry for my english it may be kind of approximative smile.

I just want to create that kind of concept.

There already exists some commercial devices : http://www.cybertecturemirror.com/

But its very expensiven and not just a mirror, it’s pretty thick though.

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Posted: 11 January 2013 09:21 AM   [ Ignore ]   [ # 4 ]
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concept.. well that explains…

I’m no expert on one-way mirrors, but it may work to put a LCD Screen behind one - the bright Pixels might get through.
Projecting from the front wont work.
Display foils do the trick with luminescent pixels (OLED I believe), but I don’t think you can do this without a commercial product.
Kinect from behind a one-way mirror may work if the mirror does not reflect IR from both sides, but I guess it will..
A Kinect from above however would be able to do tracking of objects in front of the mirror. (more gesture recognition than touch.)

LLP blobs emerge when the finger is illuminated by the laser. After the light was diffused by the finger, it’s harmless.

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Posted: 11 January 2013 05:34 PM   [ Ignore ]   [ # 5 ]
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Okay,

What about Acrylics ? Arent there any Front projection ?

Or even a transparent paper diffuser ?

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Posted: 14 January 2013 04:48 PM   [ Ignore ]   [ # 6 ]
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You will need to use one way mirror glass with either a white projection screen or bright monitor behind the glass.  For touch interaction you will need to use an infrared Touch Frame on the front or capacitive film.

Here is our example video using one way mirror glass + our white RP film adhered to the back + Touch Frame:

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