| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| warren | "Hi, would you mind looking through the FAQ to see if we can get some good documentation together about this additional question? If it doesn't exis..." | Read more » | about 7 years ago | |||
| KIAS | "Warren, I have downloaded csv file but then how will I be able to convert the RGB and wavelength values to calculate absorbance or transmittance? C..." | Read more » | about 7 years ago | |||
| larsonreever | "You'll need to ensure all your data has the same cross-section if you want to compare it or use this calibration for other readings. " | Read more » | about 7 years ago | |||
| xose | "Hi nnole! If you are using the spectralworkbench when you are prompt to authorize the use of the camera (using chrome at least) you should be able ..." | Read more » | over 7 years ago | |||
| sanchittechnogeek | "Created a spectrometer! :) here are the pics below! " | Read more » | over 7 years ago | |||
| nnole | "Hi sorry I was not specific. I built a small spectrophotometer that is connected to a small USB camera. My laptop has a camera as well so I don't k..." | Read more » | over 7 years ago | |||
| xose | "I've recently tried with a Nikon D700 + Elmarit 35mm with good results. If you have an extra lens cap you can try making a hole and fix the spectr..." | Read more » | over 7 years ago | |||
| xose | "Hi @nnole! Can you specify a little bit more your question? There are different answers depending, first of all, on the spectrometer you are using ..." | Read more » | over 7 years ago | |||
| warren | "Well, the compensation is based on the sensitivity of the semiconductor, mostly (i believe). I think you could try to block the wavelengths that ar..." | Read more » | over 7 years ago | |||
| warren | "https://github.com/publiclab/spectral-workbench.js is the core JavaScript modules which could be easier to run in isolation as well -- it's used in..." | Read more » | over 7 years ago | |||
| warren | "Yes, there is CSV, XML, and JSON data download for each spectrum. It's on the lower left side of the screen in a grey bar. Hope that helps! " | Read more » | over 7 years ago | |||
| xose | "Hi sohelikh, I don't know how to create a spectral distribution graph like those you say. The Spectralworkbench can be instaled in any computer run..." | Read more » | over 7 years ago | |||
| sirkubax | "thx, I thought about using DSLR camera (EOS 350D) that has a bigger sensor and a better lens, it might (not sure yet) capture the spectrum better " | Read more » | over 7 years ago | |||
| xose | "Hi! (5)You can try pointing your spectrometer to a white paper in the place of pointing it directly to the light. (6) I think that depends on the ..." | Read more » | over 7 years ago | |||
| soheilkh | "Thanks Warren, (1) is there any specific filter that I can use to fix overcompensation of the light in your experience? maybe that will help in inc..." | Read more » | over 7 years ago | |||
| sirkubax | "So you were right about 1 - on firefox rear camera works... thx Rear camera capture: p 6. How to get the image/spectrum to fill the whole capture..." | Read more » | over 7 years ago | |||
| liz | "Hi! Thank you for helping debug, and for being an open source supporter! Seems to me like some instructions got lost in the wash, so i'll type them..." | Read more » | over 7 years ago | |||
| warren | "The raw spectra these DIY devices produce are not absolute calibrated per-color, so they may be more sensitive to blue than red. You could either i..." | Read more » | over 7 years ago | |||
| soheilkh | "The reason I was doubted the result is that I have way more red LEDs than blue. Both colors seems (visibly to eyes) to have comparable brightness, ..." | Read more » | over 7 years ago | |||
| xose | "Hi bochamu can you share some links to your uploaded spectra? " | Read more » | over 7 years ago | |||
| Iqbaljurist | "I assume you are in optics class with Mr. Gea " | Read more » | over 7 years ago | |||
| cfastie | "Do you have some reason to think that the spectral output of the lamp should be different? Maybe the result you got is a good representation of wha..." | Read more » | over 7 years ago | |||
| warren | "I believe this is a bug; the JavaScript console shows: application-0add8749179623a04221903b025c601c.js:57 parsing calibrate:92343#25653 applicatio..." | Read more » | over 7 years ago | |||
| warren | "Thanks for sharing the link. Because you're using an uploaded image, the top row of pixels is quite dark, and that's the one used as your cross-sec..." | Read more » | over 7 years ago |