854Views8Replies

Author Options:

Light painting with lasers Answered

Fade Out is a system of "painting" an image on a photoluminescent surface with lasers. It was developed by Daito Manabe and Motoi Ishibashi and can create different shades of green depending on the timing of the laser. Check out the video below to see what I mean. The source image from the webcam is used for the image that's put on the wall.

via pinktentacle

Discussions

0
None
don_naked

8 years ago

the coolest things with a laser, awesome

0
None
Skyriam

8 years ago

This is by far one of the coolest most impressive things I've ever come acrossed, the engineering and intelligence behind this is amazing, awesome work! Keep it up, take care.

0
None
jeff-o

8 years ago

This is way better than having people stand in front of a phosphor-coated wall and shining a flashlight on them to leave a shadow.

Yep, way better.

0
None
kelseymhjeff-o

Reply 8 years ago

Or having people sit in front of a phosphor-coated glass panel while an electron beam on the other side is aimed more or less at their brains....

0
None
jeff-okelseymh

Reply 8 years ago

Ah, good times. Can't say I miss my old tv, though.

0
None
kelseymh

8 years ago

That is really fascinating! There is some really interesting physics and signal processing calculations going on behind the scenes.

I wonder how closely they had to measure and model the phosphor decay --- do they assume a single exponential, or more complex multi-constant behaviour?

What about saturation effects, in particular with overlapping time-delayed pixels?

And why did they decide to go with hollow-box pixels rather than simple round (defocused) spots?

0
None
bobbym529

8 years ago

Very cool!