response:12725
response:12725


Author Comment Last activity Moderation
dhaffnersr "It's me again Jeff, Dave H, sorry I posted the wrong graph i made, this is the right one " | Read more » over 6 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 » over 6 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 » over 6 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 » almost 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 » almost 7 years ago
stoft "Unfortunately, LED wavelength does not change with applied voltage or current -- their center peak wavelength is not variable or controllable and P..." | Read more » almost 7 years ago
dhaffnersr "Hey Jeff! Sure I'd be happy to test any LEDs you want to send. I do want to throw an idea your way, I think using the higher wavelength LEDs are st..." | Read more » almost 7 years ago
stoft "Sure ... what's the LED's packaging style/type? SMD, leaded, ...? " | Read more » almost 7 years ago
warren "@dhaffnersr and @stoft, if you'd like I could send you the lower-wavelength LEDs as well for comparison testing? " | Read more » almost 7 years ago
warren "@briandegger @jeffh - thanks for the tips on LED sourcing! Thought you'd enjoy seeing this. " | Read more » almost 7 years ago