Addonex
0
- Joined
- Aug 27, 2010
- Messages
- 301
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- 18
I've discovered something interesting using a pair of photochromic lens glasses (often branded as transition or photolite glasses), when shining a 405nm beam at them they darken in response to the UV light and you can draw on them as if the beam is a pen. I tried this only with a very low power pointer as a higher power may damage the embedded material but other than that it seems to completely recover back to it's original state after about 10 minutes. I'll see if I can put up some pictures later to demonstrate this if you don't have a pair around.
Note: Do not even think of using these as safety glasses. The response time is not instant and they don't nearly block all of the light even with a 10mW pointer.
Note: Do not even think of using these as safety glasses. The response time is not instant and they don't nearly block all of the light even with a 10mW pointer.
I wonder though if this material would be commercially available or by custom order in a larger sheet. Might be something worth looking into, I'll do some searching tonight.