I was at Kinko's the other day printing some photos and I was bored waiting around for the prints to be done. I started poking around in the trashcan to see if there was anything good in there and sure enough I found a scroll of colorful plastic film. The roll of film was about 6 inches wide and oh maybe a mile long, with little 4 inch sections of cyan, magenta, yellow, and clear running the length.
It turns out that this was the way my photos were being printed. These rolls of film are loaded into the behemoth photo printing machine and a series of electro-mechanical shenanigans take place to deposit the C+M+Y colors in different amounts to make pretty photographs. I took it home and held it up to a lightbulb and sure enough the color shining through the film was really intense. I popped some scrap plywood and acrylic into a rectangular prism with a mechanism to advance the plastic film in front of a bulb and voila I had a fun new lamp that makes a wide range of colors- thanks Kinko's garbage can!
It turns out that this was the way my photos were being printed. These rolls of film are loaded into the behemoth photo printing machine and a series of electro-mechanical shenanigans take place to deposit the C+M+Y colors in different amounts to make pretty photographs. I took it home and held it up to a lightbulb and sure enough the color shining through the film was really intense. I popped some scrap plywood and acrylic into a rectangular prism with a mechanism to advance the plastic film in front of a bulb and voila I had a fun new lamp that makes a wide range of colors- thanks Kinko's garbage can!
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