Timeline for What is "white light" ? Uniform wavelengths or uniform frequencies ?
Current License: CC BY-SA 3.0
6 events
| when toggle format | what | by | license | comment | |
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| Nov 6, 2016 at 19:35 | history | edited | Ilja | CC BY-SA 3.0 |
improved the opening, to motivate the answer
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| Nov 2, 2016 at 17:54 | comment | added | Ilja | In practice there are three types of detectors for colours, three chemical substances in the eye. To compute, what signal they measure, take the incoming spectrum, multiply it with the corresponding sensitivity: upload.wikimedia.org/wikipedia/commons/thumb/f/f9/… and take the integral. The curve would be different in respect to the frequency, and you would have to know the incoming distribution of frequencies; but the choice - frequency or wavelength - is not a property of the detector, only of your method of computation. | |
| Nov 2, 2016 at 17:52 | comment | added | Ilja | White is meningfully defined only relative to a very specific detector: the human eye+brain :) the question whether a detector reacts to $\lambda$ or to $\omega$ is also misleading. | |
| Nov 2, 2016 at 17:43 | history | edited | Ilja | CC BY-SA 3.0 |
added summary at the end
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| Nov 2, 2016 at 15:18 | comment | added | Cham | Does this tend to confirm that a complex detector could be reacting to frequencies, and not to wavelengths, and that there are also detectors that reacts to wavelength instead of frequencies ? And that "white" is thus defined relative to a particular detector ? | |
| Nov 2, 2016 at 15:10 | history | answered | Ilja | CC BY-SA 3.0 |
