Timeline for Does red light preserve your night vision?
Current License: CC BY-SA 3.0
6 events
| when toggle format | what | by | license | comment | |
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| Dec 16, 2014 at 8:42 | comment | added | user | A portion of this post has been incorporated into During night flying, which color lens for a flashlight is most beneficial? on Aviation. | |
| Sep 7, 2012 at 15:50 | comment | added | Salain | It doesn't quite work like this because the chart above shows the relative chromatic sensitivity, which is very different from the luminal sensitivity. That means that you can't compare the height of the Rod curve to that of the L-type cone because they've been normalized to peaks with very different sensitivities. | |
| May 10, 2012 at 12:24 | comment | added | Ilmari Karonen | One such cell-specific mechanism, at least, is the direct result of active rhodopsin depletion: when it reacts to light, the rhodopsin pigment photobleaches and must be recycled to reactivate it. This recycling is quite slow in rod cells; Wikipedia says it takes about half an hour for the rhodopsin level to fully regenerate after exposure to bright light. Thus, to retain night vision, it would certainly seem desirable to avoid exposure to light at frequencies that can trigger rhodopsin transformation. | |
| May 5, 2012 at 18:57 | comment | added | user560 | There will certainly be a response by each cell (if they are sensitive to the wavelengths of light), and sensitivity adjustments on a network level. It stands to reason that if you only activate using a frequency the L cones can be activated by, then it would work. | |
| May 5, 2012 at 18:52 | comment | added | Shep | so the rods and cones adjust to brightness independently? If so, you may have the answer. | |
| May 5, 2012 at 18:50 | history | answered | user560 | CC BY-SA 3.0 |