Archive for August, 2006

filtering like a pro

Tuesday, August 15th, 2006

the old IR filter
today i went to calumet here in berlin to buy an IR pass filter. the one i had which was taped together from black photo negative was too transparent for visible light (you could still see a red glare when looking directly at a light source) as well as it blurred the image because of the multiple layers of negative and clear adhesive tape.

the filter i bought is a polyester filter called LEE 10087, which means it is manufactured by LEE Filters, measures 100×100mm and is filter color #87. guess what, it works well. less light than before reaches the CCD chip while the image quality is enhanced.

LEE #87

i used the universities’ laser cutter to cut a ring out of plastic which fits over the lens and i fixed a piece of filter to it using double-sided adhesive tape. looks really professional now.

here’s an image marion shot with a webcam lying around

security camera with ir filter

Posted in multitouch, project | 15 Comments »

finished

Thursday, August 10th, 2006

the semester has ended some weeks ago, i forgot to post the progress in the last days, so here is how the cross and the station look like:

way of the cross

in the station, there is an arduino board connected to an easyradio transceiver, sending out the station byte every second, in the image, it would be a “two”.

in the cross, the arduino gets the byte and lets the yampp play back the according track. inside the cross, it looks like this:

inside the cross

further documentation will hopefully be online soon.

Posted in arduino, project, sacral-design | No Comments »