# led led

Author Comment Last activity Moderation
EllenHarri "It is a very Useful post. " | Read more » over 2 years ago
warren "@warren awards a barnstar to Claytonb for their awesome contribution! " | Read more » over 4 years ago
springem "Hi, new user here. Just got word from my water company that their turbidometer has been going offline for a few months. I'm curious if you have upl..." | Read more » almost 5 years ago
programmer1200 "Here is a link to the source but its cheaper to purchase at the actual store , for some reason they $1.71 website and only a$1 in store . https:/..." | Read more » almost 5 years ago
warren "Also, do you have a link to the light you used? Do you use a diffuser of any kind with it, or could you in theory dim the light with a filter to ma..." | Read more » almost 5 years ago
warren "That sounds amazing. Looking forward to seeing it! " | Read more » almost 5 years ago
programmer1200 "Hi @warren that sounds great I'll get one printed out and ready for use and should have it on its way within a few days. Your right about the stand..." | Read more » almost 5 years ago
warren "Hi, this is tremendous, we'd love one at the Kits initiative! Could we trade you for some Lego parts? We're curious if you'd be interested in using..." | Read more » about 5 years ago
cfastie "Setting a custom white balance on the Mobius camera can be done numerically. Determining which numbers to use requires trial and error and subjecti..." | Read more » almost 6 years ago
suman "Dear Cfastie, Very informative. Thanks for posting. I was interested to know, which method is more preferred and accurate, whi..." | Read more » almost 6 years ago
Claytonb "@Thorsten I have not tried using a chart like the color checker though I have used materials(plastic, felt, paper) in the shade of red on the chart..." | Read more » over 6 years ago
Thorsten "@Claytonb great work as usual! Two questions: Have you tried some reddish colors of calibration targets such as the ColorChecker? http://xriteph..." | Read more » over 6 years ago
cfastie "This is a great discovery. It will be good to learn how this color works with a red filter like Wratten 25. I will keep my eye out for Boom Chicka ..." | Read more » over 6 years ago
cfastie "This is a good example of how the spectrum of incident light influences the NDVI of a scene. Leaves reflect about 10 times more NIR than red, but i..." | Read more » about 7 years ago
aldehyde " I used of Mobius infragam cam (red filter) in Grow Chamber. Light - RED and BLUE (3:1) LED. As I understand this is due to lack of NIR and lot ..." | Read more » about 7 years ago
dhaffnersr "It's me again Jeff, Dave H, sorry I posted the wrong graph i made, this is the right one " | Read more » about 7 years ago
dhaffnersr "Hey Jeff, I use spekwin32 for all my spectral data processing, first here are 2 references that may help you https://www.researchgate.net/topic/uv..." | Read more » about 7 years ago
warren "Hi, Dave - what is the tell-tale hump? Do you mean from the LED input light? If so, it's at 398nm, not 385nm. What processing did you do? " | Read more » about 7 years ago
dhaffnersr "Hey Jeff, I saw your spectra of the nail polish machine and there it is the tell tail "hump," so I exported it and processed it and here is what it..." | Read more » about 7 years ago
dhaffnersr "Hey Dave, well I was thinking along the lines of when I built a wind speed indicator with a small dc motor and LCD screen attached and calibrated i..." | Read more » about 7 years ago