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Invisible etching into glass revealed in shadow


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I think that there is a Swiss company that can etch any company logo or text into glass in such a manner that the glass appears clear to the human eye, until light projects the image on to a surface behind it.

I just can't find that company, is this real or did I imagine it ?

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Yes, and I don't know where it went, I just can't find it with any keyword searches.

The glass looks clear, but the company logo is projected onto the wall. One would have expected the company to better market themselves.

I was sure that it was Swiss ?

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