davidgdg
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- Dec 1, 2008
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I have a pair of Dragon orange/red goggles for working with my 532, 473 and 405 lasers.
When I view a 532 spot through the goggles, then depending on the reflecting surface, sometimes the spot appears green and sometimes yellow. It seems random. Thus:
Metalised aluminium ruler: green
Glossy dark navy paperback book: yellow
Semi-glossy dark navy hardback book: green
Pair of dark-navy woollen trousers: green (and now a small hole ;-(
Grey woollen "hoodie": yellow
Coffee mug: green
White paper surfaces: some green and some yellow
Antique mahogany desk: yellow
What's going on?
I was wondering if it was some kind of fluorescence, but it seems unlikely at 532nm and in any event, I can't see any pattern to it.
David
When I view a 532 spot through the goggles, then depending on the reflecting surface, sometimes the spot appears green and sometimes yellow. It seems random. Thus:
Metalised aluminium ruler: green
Glossy dark navy paperback book: yellow
Semi-glossy dark navy hardback book: green
Pair of dark-navy woollen trousers: green (and now a small hole ;-(
Grey woollen "hoodie": yellow
Coffee mug: green
White paper surfaces: some green and some yellow
Antique mahogany desk: yellow
What's going on?
I was wondering if it was some kind of fluorescence, but it seems unlikely at 532nm and in any event, I can't see any pattern to it.
David