| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| jhondue123456 | "https://www.google.com " | Read more » | 8 months ago | |||
| liz | "FYI - this is posted as a question here: https://publiclab.org/notes/carmatic/02-24-2021/alternatives-to-cfl-for-calibration " | Read more » | over 3 years ago | |||
| carmatic | "hello, I'm trying to look for fluorescent bulbs but they are being phased out where I live and are becoming harder and harder to find is there an a..." | Read more » | almost 4 years ago | |||
| jterning | "Hi, I am confused! My calibration looks ok but is I take a spectrum from a red LED screen I get something crazy: thanks, John " | Read more » | almost 4 years ago | |||
| warren | "Gosh, sorry for the late response! When you haven't yet completed the calibration, the numbers shown are for pixel position, not wavelength. Once y..." | Read more » | almost 4 years ago | |||
| milanq | "Hey! I was trying to califrate a fluerescent bulb, and it appeared to fit good with the reference spectral workbench ives you, but when looking at..." | Read more » | over 4 years ago | |||
| ArtistMonkey83 | "I wanted to know if B2 is == 435.83 and if G2 is == 546.07 nanometers. I am also interested in knowing how these values where chosen. I looked up s..." | Read more » | over 5 years ago | |||
| ArtistMonkey83 | "The github link is no longer active. " | Read more » | over 5 years ago | |||
| ArtistMonkey83 | "This link is no longer active. " | Read more » | over 5 years ago | |||
| dsvilko | "Ups, I meant mercury, not sodium, of course. The line I can't identify is the one at 445.1 and 445.9nm. Any ideas? Also, are the two faint lines on..." | Read more » | over 7 years ago | |||
| cfastie | "I didn't know sodium was used as a phosphor in CFL lamps. That green line is one of the brightest in CFL spectra and in all mercury spectra, and me..." | Read more » | over 7 years ago | |||
| dsvilko | "By comparing my spectra of the Sun (more lines for precise polinomial callibration) with that of the CFL lamp, I can confirm that the green line is..." | Read more » | over 7 years ago | |||
| warren | "I'm sorry - the tag should be #gain-control -- and although I don't have time myself at this point to do a live chat, you could perhaps ask on the ..." | Read more » | almost 8 years ago | |||
| Iqbaljurist | "Dear Warren, @warren I could not click the hashtag. Also, could we have a live chat which we can discuss this topic any further? I do wait your r..." | Read more » | almost 8 years ago | |||
| warren | "Hi, there are some steps for intensity calibration outlined in #exposure-calibration, but they're not that easy to follow -- we would love if you'd..." | Read more » | almost 8 years ago | |||
| Iqbaljurist | "@cfastie Chris, I am now able to measure my spectra using iPhone, i dont know why using mobile device is way more effective than PC. Also, how do..." | Read more » | almost 8 years ago | |||
| cfastie | "Jurist, I tried to calibrate your spectrum but Spectral Workbench would not complete the task. I don't know why it did not work. The intensity sc..." | Read more » | almost 8 years ago | |||
| Iqbaljurist | "@warren Hi Warren, let me introduce myself. My name is jurist, im freshmen of physics engineering student in University of Gadjah Mada. Currently,..." | Read more » | almost 8 years ago | |||
| liz | "Thanks @zega! " | Read more » | about 8 years ago | |||
| zega | "Oh and i suggest using QTI plot (you can zoom into graph data way better then excel, plot traces with just right click/plot) very nice open source ..." | Read more » | about 8 years ago | |||
| zega | "Yes i do, here: FC__long.txt " | Read more » | about 8 years ago | |||
| warren | "Oh, great -- do you have raw data for these as well, like CSVs? " | Read more » | about 8 years ago | |||
| zega | "I will start with long CFL tubes that i just did... Unfortunately i don't have bare tube (diffuser in front/office lights) that might play same ro..." | Read more » | about 8 years ago | |||
| cfastie | "Hi Robert, In this note and comments we were lamenting the lack of replicate spectra of CFL lamps to confirm the information at the Wikipedia page...." | Read more » | about 8 years ago |