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View Full Version : Why The Red Lights?



winslynn
08-04-2005, 12:19 PM
Why the red lighting in the sub?Why would you want to keep it so dark?

Abihco
08-04-2005, 12:24 PM
Dark Adaptation (http://www.google.com/search?q=Dark+Adaptation&start=0&start=0&ie=utf-8&oe=utf-8&client=firefox-a&rls=org.mozilla:en-UShttp://forums.ubi.com/groupee_common/emoticons/icon_redface.giffficial)

VF-17_Jolly
08-04-2005, 12:47 PM
previous thread (http://forums.ubi.com/eve/forums/a/tpc/f/857101043/m/1331050343)

stinkhammer6
08-04-2005, 01:57 PM
they would turn on the red lights when going in on attack runs or scoping out ships or escorts, the red light dont shine as much as a regular white light, with the scope out of the water it would be almost like a flashlight, with a red light it would be much more difficult to see. Same reason why in movies you see troops looking around with red lenses on their flash lights.

ILikePortillos
08-04-2005, 03:54 PM
I've seen in other related posts that your eyes are able to adjust faster.

I've also heard it's the shortest visible wavelength, and the least likely to see from a distance. NOT and expert. DON'T quote me. Just a shot in the dark (pun intended). http://forums.ubi.com/images/smilies/16x16_smiley-wink.gif

Philipscdrw
08-04-2005, 03:59 PM
Thinking back to my A-levels, red light has the longest wavelength, which means the lowest frequency, and the least energy. High-frequency has more energy than low frequency, so maybe high-frequency carries further.

WilhelmSchulz.-
08-04-2005, 05:10 PM
Oh my God!!! DO U PEOPLE LEARN ANYTHING!!! http://forums.ubi.com/images/smilies/51.gif Look a few pages back.

pcisbest
08-04-2005, 09:28 PM
Yeah no kidding. It has absolutely nothing to do with being "less visible" to enemies, whoever came up with that should be shot lol.

It all has to do with going "night blind," have any of you heard of that? Just take a flashlikght, into a dark room, look into the light for a few seconds, then step out of the room into a lit room, you will see little spots in front of you, this is called "nightblind."

Now take a flashlight with a red lense, do the same thing, and voila, no spots!

winslynn
08-04-2005, 09:34 PM
Thanks for the info men.I shall buy a red light bulb for the computer room as someone said they do.I've got the music,will have the lighting,what else?A rag with diesel on it to smell now and again?Ha,Ha!

WilhelmSchulz.-
08-04-2005, 10:13 PM
Originally posted by winslynn:
Thanks for the info men.I shall buy a red light bulb for the computer room as someone said they do.I've got the music,will have the lighting,what else?A rag with diesel on it to smell now and again?Ha,Ha! Oh God. http://forums.ubi.com/images/smilies/51.gif

blue_76
08-04-2005, 10:19 PM
for developing films! http://forums.ubi.com/images/smilies/16x16_smiley-very-happy.gif

Goose_Green
08-04-2005, 10:33 PM
Red light is used during dark hours in most if not all combat situations regardless of you being in an Armoured vehicle, aircraft or U-boat - The reason being is that it does not destroy your night vision - obviously in any combat situation you want to be able to see your enemy - as red light does not affect your vision that is the reason why it used. The moment you are blinded by any bright light it can take up to a further 30 minutes for your night vision to return - those 30 minutes could prove costly - especially if your enemy has seen you first!

And especially importatnt when nearly all attacks, counter offensives etc etc are conducted at night - but since we use NVG's now the worry of night vision is somewhat less important!

Tomus
08-05-2005, 05:56 AM
Wasn't there also a psychological reason for Red Lights as well that it told the crew it was nighttime and helped to keep body clocks in some sort of order and allowed men to track day and night.

EFileTahi-A
08-05-2005, 06:22 AM
Originally posted by Goose_Green:
Red light is used during dark hours in most if not all combat situations regardless of you being in an Armoured vehicle, aircraft or U-boat - The reason being is that it does not destroy your night vision - obviously in any combat situation you want to be able to see your enemy - as red light does not affect your vision that is the reason why it used. The moment you are blinded by any bright light it can take up to a further 30 minutes for your night vision to return - those 30 minutes could prove costly - especially if your enemy has seen you first!

And especially importatnt when nearly all attacks, counter offensives etc etc are conducted at night - but since we use NVG's now the worry of night vision is somewhat less important!

You took my words from my mouth http://forums.ubi.com/groupee_common/emoticons/icon_smile.gif

WilhelmSchulz.-
08-05-2005, 09:33 AM
Originally posted by Tomus:
Wasn't there also a psychological reason for Red Lights as well that it told the crew it was nighttime and helped to keep body clocks in some sort of order and allowed men to track day and night. Thats nowadays with 3 month patrols and not a drop of natural light.

ILikePortillos
08-05-2005, 10:26 AM
Originally posted by pcisbest:
Yeah no kidding. It has absolutely nothing to do with being "less visible" to enemies, whoever came up with that should be shot lol.

It all has to do with going "night blind," have any of you heard of that? Just take a flashlikght, into a dark room, look into the light for a few seconds, then step out of the room into a lit room, you will see little spots in front of you, this is called "nightblind."

Now take a flashlight with a red lense, do the same thing, and voila, no spots!

I found this on the web:

"Submarines employed a "RED" lighting system in the control room and conning tower to allow for better night vision. Often, crew members on watch would wear red colored goggles when moving through areas of the boat not covered by red lighting. The red lights (or goggles) would allow their eyes to adjust to the night's darkness quicker when on watch, thus giving them a considerable advantage. It's use is limited obviously in Silent Hunter . . . but it adds a nice touch of authenticity. It might reduce the possibility of your periscope being spotted by the enemy at night if you were using only white lights."

I knew I didn't make that up. Think about it, if you're eyes aren't as sensitive to it, shouldn't it be harder to make out from a distance? I mean, I know the main function is to preserve night vision, but it does have an extra advantage.

Shot? A little extreme are we? Practice the goose step and you'll have that whole Nazi thing down pat. http://forums.ubi.com/groupee_common/emoticons/icon_wink.gif

WhiteKnight77
08-05-2005, 10:52 AM
Originally posted by Goose_Green:
Red light is used during dark hours in most if not all combat situations regardless of you being in an Armoured vehicle, aircraft or U-boat - The reason being is that it does not destroy your night vision - obviously in any combat situation you want to be able to see your enemy - as red light does not affect your vision that is the reason why it used. The moment you are blinded by any bright light it can take up to a further 30 minutes for your night vision to return - those 30 minutes could prove costly - especially if your enemy has seen you first!

And especially importatnt when nearly all attacks, counter offensives etc etc are conducted at night - but since we use NVG's now the worry of night vision is somewhat less important!

These are the very things I learned while I was in the military.

It takes at least 30 minutes for eyes to get accustomed to the dark. If you have to step back into a lit tent or vehicle with other than red lighting, it could take up to another 30 minutes to get reused to the dark. Same if a parachute flare went off. The use of red lighting (or in the case of sub personel and red goggles), they would help keep a persons eyes from having to readjust as long otherwise.

As I was aircrew, red lighting is used on the instrument panels and guages for the same reasons. While flying at night, a pilot could be blinded by the glow if they used white lights instead. With talks of other aircrew that had used NVGs during flight ops, they report that all interior lighting has to be turned off no matter what.

Now red lights will not be seen at distances that other colors would be and said previously, having the lowest frequency doesn't carry as far.

Now seeing at night is different than one would during the day. While in the day time you could actually look for objects, at night you look for movement. You can go "blind" by staring in one spot and miss everything at night unless you keep your eyes traversing the area slowly. Your eyes will pick up movement faster than it would otherwise.

Celeon999
08-05-2005, 11:30 AM
This thread pops up again and again http://forums.ubi.com/groupee_common/emoticons/icon_biggrin.gif

Ok here once again the link to an interesting thread about the red and blue lights

Look here (http://forums.ubi.com/eve/forums/a/tpc/f/857101043/m/8521008733/r/8521008733#8521008733)

Goose_Green
08-05-2005, 11:44 AM
Taking the red light issue further although a little off topic.

The only time a red light at night is of no use what so ever is when one is using a map when navigating on the ground The reason being the contour lines on the map are coloured red - and when you shine your guchi red filtered maglite on the map hey presto your contour lines have vanished or very difficult to see! So don't look suprised when you become face to face with a huge mountain!! http://forums.ubi.com/images/smilies/blink.gif Let's say I have found out the hard way when conducting a Close Target Recce!! http://forums.ubi.com/images/smilies/35.gif

One of the hardest tasks is when you are on perimeter sentry on those darkest of nights - basically you can see bugger all - even worse when someone will launch a parachute flare or mini flare - the bright light renders your night vision useless!

The joys of being in the Army I guess!!