I often have adverse health effects when sitting behind a monitor for more than a short period of time. I am interested in finding out, what exactly it is that's affecting me. For example, I have certain monitors behind which adverse health effects start after 15 minutes -- even if it's couple feet away; others take a couple hours to kick in. By measuring different aspects of these monitors, I was hoping to be able to zero in on, what exactly it causing these effects.
The first thing I was planning to do was, to measure the frequency of the screen flicker by hooking up a photodiode to an oscilloscope. However, I do not expect the results to be very different from, say, a regular LED lamp. On the other hand, LED lamps do not affect my health adversely -- so, it is probably only certain wavelengths which affect me adversely.
So the other thing that I would need is, a spectrometer to measure the light from the monitor, to see which frequencies occur how often. Preferably, it should be something that can be adapted to tell me the frequency also -- but even a regular spectrometer I'll take. The only types of spectrometers I've been able to find either measure the spectrum of liquids, gases, or give only the single highest frequency. I am not familiar enough with spectroscopes to know, whether any of these types can be adapted to measure visible light.
No budget limit right now, just a matter of seeing whether it's possible.