near-ir
near-ir


Author Comment Last activity Moderation
donblair "Follow-up -- there's some nice info on IR photodiodes (at least the sort that are in a typical IR remote), here -- including a link to a datasheet...." | Read more » over 10 years ago
donblair "Yay! Yeah, I puzzled a bit over the best geometry of 'emitters and receivers' to use on the device. I have two photodiodes on the board, one of w..." | Read more » over 10 years ago
mathew "The circular layout will make concentrating the different LEDs towards a common point easier. good thinking. " | Read more » over 10 years ago
sonofaquark "your filter switcher looks even less expensive than using a CD player. nice idea. The spinning wheel would permit faster filter switching of multip..." | Read more » over 11 years ago
cversek "In pursuing the image registration problem, some more bugs were found in SimpleCV that cause some colorspace image formats to get accidently invert..." | Read more » over 11 years ago
sonofaquark "it had not occurred to me before that with the beam splitter, a mirror, and a pair of cheap electronically synchronized shutters you could get full..." | Read more » over 11 years ago
sonofaquark "As far as I can tell they are glass. The cheapest I could find one onshore was at Edmund Optics or Newport for about $150. it appears the guy has ..." | Read more » over 11 years ago
warren "Also it seems that the seller would surely do a bulk deal... they seem to be the manufacturer... " | Read more » over 11 years ago
warren "Huh, that is not too bad! Wow, and thank you so much! That would be amazing... $1 each... eager to hear how the ebay one looks... was it acrylic o..." | Read more » over 11 years ago
sonofaquark "$20 too much for the splitter? This actually looks like pretty good quality and they have quite a few, maybe they would come down in quantity. Lots..." | Read more » over 11 years ago
warren "Well, one reason to beamsplit and recombine on one camera is to save the cost of a camera... it'd be really awesome to have an entire camera for we..." | Read more » over 11 years ago
sonofaquark "i will take a look. what is the lens diameter? if you have not had the chance to play with muscle wire it is really cool stuff. I would be happy to..." | Read more » over 11 years ago
warren "i've been trying to find cheap beamsplitters to try this... any suggestions or URLs? " | Read more » over 11 years ago
sonofaquark "a couple of ideas; you could use a beam splitter to combine two cameras. good ones are expensive but a cheap acrylic one might be good enough. You ..." | Read more » over 11 years ago
cversek "follow the technical Python code discussion here: https://github.com/ingenuitas/SimpleCV/issues/320 " | Read more » over 11 years ago
cversek "Reposting a comment that somehow slipped through the cracks: Comment by kscottz: Hi Guys, I am one of the SimpleCV devs and I noticed your post. I..." | Read more » over 11 years ago
cfastie "You're right that for aerial work a 0.5 second lag is not terminal. The whole rig will move some, but the photos from the two cameras will still ov..." | Read more » over 11 years ago
cversek "Chris, your comments are right on the "money" (pun intended). It looks like the best we can do with these budget cams, short of writing a new drive..." | Read more » over 11 years ago
cfastie "Wow, it sounds like you are operating right on the edge of the system's capabilities. That problem is related to streaming video, and for the IRca..." | Read more » over 11 years ago
cversek "For those of you who really want to know the details of the USB bandwidth problem, the UVC driver site has this FAQ item. " | Read more » over 11 years ago
cversek "Sadly, the v4l2 upgrade did not fix the USB bandwidth problem for dual webcams; this issue probably isn't a bug but really a limitation of the chea..." | Read more » over 11 years ago
cfastie "Oh that's right, the photos have to come back from the cameras into the USB ports so it would be hard to share one port. Shutter sync won't be tha..." | Read more » over 11 years ago
cversek "@cfastie on March 6, 2013 - 23:46. It boggles the mind that the necessary libraries might fit on an SD card and run on a Pi Heck, I got 6 gigs le..." | Read more » over 11 years ago
cversek "@warren on March 5, 2013 - 14:53. Wow, amazing! I can also send you some developed film, i have a whole roll. Hey, if you're giving out free film..." | Read more » over 11 years ago