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here's a patent : Patent US4844947 - Technique for the application and cure of photosensitive paints - Google Patents

https://www.matsui-color.com/thermolock/ I'm thinking something out there is gonna work .... here's another contender.

drinking. you missed drinking in this. I'm sure it fits in somehow! here! hold my beer and watch this .......

based along the same ideas as above Inkodye develops photos on T-shirts using sunlight If the properties could be tweaked a bit, maybe make it less sensitive, then I could get a longer working time? Lasers could get a new real world application if this were to work.

I know for a fact that turkeys can not only see a red laser but I think they can feel it! and oh boy does it get them to move! If hogs would react the same way, then possibly they can get swept into your line of fire? so when's the bbq?

this is an interesting idea Sun Painting (with Setacolor) Instructions It's very much along the lines I'm looking for! Instead of the sun could the a laser do this? I'm not looking for a full blown photo of something, line art is what I'm after, so it's used as a guide .... kinda like a...

maybe they are all out there experimenting with all their various wave length lasers on all known materials? It could be an interesting thing to set out to do? Or at least notice for, so when it happens it's a happy accident! oh, I also use the 1954 Argus Projector to cut out stencils when...

I already do the night thing with my 1954 Argus Slide Projector. I print with my HP 5mp laser printer (black toner) onto a clear plastic (laser) sheet so it fits to a 35mm slide, and I usually fill up the sheet with all kinds of different images, then print, cut, mount and project. But this...

with all that it burnt my brain so it's back to photo sensitive ideas! When the photo resist, think circuit boards, it sprayed onto the sand wall surface it would have a limited time before it becomes developed by the sun, the laser would be a much higher level and do it much quicker, and so...

You got a point about the sun's wave lengths ..... hummmmm........ and I've done the stencil thing and use it when I have to, but that is slow to prepare and it's only one size, I am wanting something 21st century, maybe back to burning then? and just be careful? how about 20'? and a laser...

Yeah, burning might be a bad thing ...... and that's why I was thinking of photography based ideas, a photosensitive material that would "develop" when a certain color laser would hit it. I'm wanting to use a projector that could be used 30' away if need be.

Dr.Sid, that's interesting! ok, more details .... I'm a sand sculptor and have to carve complicated logos, I start out with a wall/block of sand ...... now comes what I envison: place the tripod with laser projector in front of the block of sand, turn on the "ranging laser" and position it...

I'm looking for a coating or spray paint that is sensitive to a specific laser color. I'd like to use a two color laser projector, one color for placement onto the target area and then I can spray the sensitive paint into that area, then once fully coated, then turn on the etching laser to see...