On: Sun, Feb 02, 03 05:57:27 PM
|Is it possible to etch a hologram directly on metal?
It would seem like you could apply a photoresist (like is
used to make PCBs) expose it, and develop and etch it, with
the resulting hologram left deposited directly on the metal.
What do you think? Am I crazy?
Colin Kaminski - Mon, Feb 03, 03 01:40:20 AM
It would take some work. Embossed plastic is more common.
You would be limited to low diffraction efficiencies.
The jury is still out. :-) 22.214.171.124
Andy - Tue, Feb 04, 03 07:14:49 PM Hmm.. It would require outstanding resolution in the photo
resist and etching, perhaps near the scale of old integrated
circuits. I wonder if that technology is available?
I just think it would be -so- cool if I could have a
hologram on the back of my watch! Now, *that's* engraving.
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