MATTEO FONTANA
Your Pathway Combination
DIGITAL ARTS and MUSIC TECH
The title of your etude
UV LIGHT IN A COMPUTER BASED ENVIRONMENT
A short statement of intentions
I WANT TO RESEARCH THE VARIOUS FUNCTION OF THE UV LIGHT AND HOW THEY CAN BE USED IN AN ARTISTIC WAY
EXPERIMENTING AS MUCH AS POSSIBLE TO FIND OUT WHAT ARE THE VARIOUS CONNECTION POSSIBLE.
What you initially wanted the piece to be about / for - its conceptions How you initially intend to create the etude
I WOULD LIKE TO GAIN THE KNOLEDGE OF THE USE OF THOSE LIGHT IN ORDER TO EXPRESS WITHOUT LIMITATION EVERY POSSIBLE EFFECT I CAN GET.
Conceptualisation of the work
WHAT I LIKE OF THOSE LIGHTS IS THE FACT THAT THEY'RE NOT REALLY REAL, IN FACT YOU CAN SEE THEM ONLY UNDER PARTICULAR SITUATION. THE UV LIGHT IS MORE VISIBLE ON WHITE SURFACES AND IN A DARK ENVIRONMENT ETC.. ETC..
THOSE LIMITATION CAN LEAD THE ARTISTS IN DISCOVER MORE VARIOUS TECHNIQUES AND GIVE ONE MORE TOOL OF EXPRESSION.
Write about:
RESEARCHING IN THOSE LIGHTS I HOPE TO GAIN A COMPLETE VISION OF THE FUNCTIONALITIES IN ORDER TO SOLVE ALL KIND OF LIMITATION I COULD ENCOUNTER. MY INTENTION IS TO GO ON WITH IT AND USE ALL THE PATHS POSSIBLE TO GET AN EASY WAY OF EXPRESS MY INTENTIONS
Documentation of Technical and Artistic Process
LOOKING AT VARIOUS WEB SITES I HAVE DISCOVERED MANY PROJECTS THAT USES UV LIGHT .
REALLY NICE ONE IS HOW TO BUILD AN UV LAMP FROM AN OLD SCANNER
THIS IS A REAL PROJECT I'M USING PICTURES AND MATERIAL FOUND IN THIS LINK (http://www.instructables.com/id/EAQTE8M7FIEXCFHAL0/) THE PROJECT YOU'LL FIND IN THIS ETUDE RAPRESENT ONE OF EXPERIMENT I HAVE TRIED TO DO IN ORDER TO UNDERSATND THE FUNCTIONALITY OF THE UV LIGHT...
I AM NOT GOING TO POST ALL THE PROJECTS I HAVE DONE BUT ONLY THE ONES THAT I THINK HAVE SOME KIND OF RELATION WITH A COMPUTER BASED ENIRONMENT
1)
First of all, safety. Notice that this is a mains powered device so maximum care must be taken in the design to insure that for no reason someone may come into contact with live parts. If you are not sure about medium voltage (mains) electrical wiring practice ask a friend or someone else whom is.
2)
First thing I did was to disembowel the scanner, after all what I needed was the case with glass and cover. No electrical parts where reused. Of course you may want to save the motors, belts, screws, head parts...You know, almost everything.
Then I opted for 3 tubes (around 8 Euro each), with ballasts and starters (6/7 Euro for each set). The switch, fuse holder and mains socket I scavenged from somewhere.
For the bottom plane I used a tin sheet. This acts as a sort of mirror/diffuser for UVs.
I used also some scrap aluminum bars from kitchen furnitures, their colour in the pictures tell it. Spacers and screws as required.
Now, the pictures show the electric diagram and the interior of the UV bed.
The circuit is based on three TL5 8W wood light tubes. Each tube is powered by its own ballast and starter . The number of tubes can be increased at will. The circuit is provided with a safety fuse and a power switch. A power socket (taken from a PC power supply) complements the circuit.
All metallic parts inside that have an external metallic counterpart electrically connect to it, must be earthed i.e. connected to the ground line. This is an important safety measure: if something goes wrong and the metal inside becomes 'live' the safety switch or fuse you have in your home trips off and no one is injured. Otherwise the external metallic part may become live without anyone noticing until touched. In my case, since I used a metallic bottom and metallic spacers and screws to hold it to the case, I bolted the metallic bottom to the ground.
3)
Grommets must be used where the wires cross the metallic plane so as the plastic insulator of the
electric wire does not wear out against the metal plane.
The fuse must be rated for the lamps used. In my case 3x8W 220Vac require a 0.5A fuse.
The tubes, ballasts and starters must be rated togheter. Too high rated the ballast and the tubes
get burnt, too low rated and the ballasts burn. Ballasts are typically rated with ranges e.g. 4-20W.
With different wiring and rating one ballast can serve two tubes. Check with the ballast supplier.
As a second thought, I think I shouldn't have removed the scanner's head. I should have mounted one single tube to the moving head of the scanner and use the stepper motor and belt to move the head back and forth.
To provide a uniform lighting the head should have been moved with a non-uniform speed (arcsinusoidal, or inverse sin function, I am guessing). Exposure time would be given by the head-lamp scanning faster or slower as required. But that's another story
One final important notice: UVs are dangerous to the eyes, so do not stare at the tubes when lit.
MY IDEA
THE PROJECT I INTEND TO REALIZE THANKS TO THE KNOLEDGE I HAVE GAIN FROM INSTRUCTABLES
I WANT TO BUILD A BOARD AND SPRAY OVER SOME UV SENSITIVE PAINT...
PLACING A UV LIGHT IN FRONT OF THE BOARD I WOULD LIKE TO BE ABLE TO DRAW SHAPES WITH THE SHADOW USING RANDOM OBJECT OR EVEN USING MY HANDS....
PLACING THE OBJECT BETWEEN THE LIGHT AND THE BOARD WILL CAPTURE THE OBJECT SHAPE.
EXPERIMENTING MORE THAN ONE COMBINATION I WILL BE ABLE TO CREATE AN ACTUAL DRAW THAT OF COURSE IT WILL DISAPPEAR WHEN THE LIGHT WILL HIT THE BOARD AGAIN
THE CONCEPT OF THIS WORK IS TO GET A REVERSE USE OF THE UV LIGHT.
IN FACT WHAT WE NOTICE IN FRONT OF A UV INSTALLATION IS THE DRAW MADE BY THE UV LIGHT.
WITH THIS METHOD I WANT TO HIGHLIGHT THE EFFECT CAUSED BY THE SHADOW.
I HOPE THAT THIS TECHNIQUE WILL OFFER OTHER WAY OF INSPIRATION FOR THOSE WHO ENJOY USE THIS INSTALLATION.
THE MEANING I CAN FIND CAN START FROM DIFFERENT POINTS OF VIEW. FOR EXAMPLE THE TIME THAT THE DRAW IT'S GOING TO STAY ON THE BOARD, OR THE NEXT OBJECT THAT WILL APPEAR CAN BE RELATE WITH THE ONE BEFORE.
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