| Topic: How important is camping lighting to you?
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Message posted by gedsjeep on 25/8/2018 at 4:07pm
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Quote: Originally posted by Caligula on 25/8/2018
As a sailor, It is often said that red light is better to retain night vision and is therefore used for chart tables, etc. Is that then, not so?
Re reading it properly, certainly for usage as above, it does in fact endorse low level RED light as being preferable......
Post last edited on 25/08/2018 10:49:24
then as a sailor, you should now know that this no longer happens.
theres a reason submarines no longer "go to red".they realised its more about how your eye works. there are no red receptors in the center, so you cant read instruments (like telescopes) properly. when they phased out the diesel electric subs, they phased out red light too.
also green blue at low level gives the fastest night vision recovery as well as enabling more precise work as there are plenty of green and blue receptors in the center.
so, no, not really.
if you want to use precision instruments then it advocates blue green...
as an aside, the MOD is now facing increasing claims from ex submariners and sailors for eye damage as a result of red light. as, and heres the bit i keep telling you, there are NO red receptors in the middle of the eye, you have to use peripheral vision to read the charts properly.
hence eye strain....
the only reason red light was used is that it has a long wavelength and breaks down the rhodopsin in your eyes less than white....
Post last edited on 25/08/2018 16:20:25
Post last edited on 25/08/2018 16:25:16
Post last edited on 25/08/2018 16:28:41