PDA

View Full Version : Will We have Blue Light ?



Redwine
05-30-2004, 10:25 AM
Watching "Das Boot", I note they use 3 types of lights........

White light as day light.......

Red light to eye pupile adaptation to night vision......

And.........

Blue light for Combat..........

Did you note that......... ?

Blue light is not present in any sim in the pat........

Is present here ?, for those who watch the sim at E3.........

Is the movie Historical accurate...... in real life U-Boote crew use Blue Light for combat ?

Just look at Das Boot film........


Plus will we have the ringing bell when "Alarm !! Dive !! Dive !!" alarm is announced ?

______________________________
.
http://personales.ciudad.com.ar/pietraroja/imagenes/firmas/EscudoU552b.jpg
.
The Ancient History of the Submarine
"Subgenesis" (http://www.iespana.es/Subgenesis/subgenesis/sg00.htm)

Manual TDC
"HTDC Tutorial" (http://www.iespana.es/rotteufel/htdc_tutorial/a_start.htm)
.

[This message was edited by Redwine on Sun May 30 2004 at 09:34 AM.]

Redwine
05-30-2004, 10:25 AM
Watching "Das Boot", I note they use 3 types of lights........

White light as day light.......

Red light to eye pupile adaptation to night vision......

And.........

Blue light for Combat..........

Did you note that......... ?

Blue light is not present in any sim in the pat........

Is present here ?, for those who watch the sim at E3.........

Is the movie Historical accurate...... in real life U-Boote crew use Blue Light for combat ?

Just look at Das Boot film........


Plus will we have the ringing bell when "Alarm !! Dive !! Dive !!" alarm is announced ?

______________________________
.
http://personales.ciudad.com.ar/pietraroja/imagenes/firmas/EscudoU552b.jpg
.
The Ancient History of the Submarine
"Subgenesis" (http://www.iespana.es/Subgenesis/subgenesis/sg00.htm)

Manual TDC
"HTDC Tutorial" (http://www.iespana.es/rotteufel/htdc_tutorial/a_start.htm)
.

[This message was edited by Redwine on Sun May 30 2004 at 09:34 AM.]

Leif...
06-01-2004, 12:42 AM
I‚'ve followed several discussions about the blue light in U-boats. Nobody seems to know what the use is and if it‚'s really historically correct. Some has gone so far as stating that the blue light was invented by the Das Boot movie and where never used in real life.

Leif‚...

Redwine
06-01-2004, 07:02 AM
Thanks a lot........

Would be very interesting to know why ? they put the blue lights in the film.......

______________________________
.
http://personales.ciudad.com.ar/pietraroja/imagenes/firmas/EscudoU552b.jpg
.
The Ancient History of the Submarine
"Subgenesis" (http://www.iespana.es/Subgenesis/subgenesis/sg00.htm)

Manual TDC
"HTDC Tutorial" (http://www.iespana.es/rotteufel/htdc_tutorial/a_start.htm)
.

AndrewOC
06-01-2004, 10:23 AM
Blue Light.
I almost sure that the blue light was so that if there was a fire or explosion, the blue light spoilt the night vision, hence making an explosion less of a shock to the eyes.

Redwine
06-01-2004, 11:42 AM
Interesting...... but why do not use White light for that ?

______________________________
.
http://personales.ciudad.com.ar/pietraroja/imagenes/firmas/EscudoU552b.jpg
.
The Ancient History of the Submarine
"Subgenesis" (http://www.iespana.es/Subgenesis/subgenesis/sg00.htm)

Manual TDC
"HTDC Tutorial" (http://www.iespana.es/rotteufel/htdc_tutorial/a_start.htm)
.

jagtigermk2
06-01-2004, 12:04 PM
http://ubbxforums.ubi.com/infopop/emoticons/icon_confused.gif Maybe they used blue light because it's a relaxing colour, switch the blue light on during depth charge attacks, to try and calm the crew.

HeibgesU999
06-01-2004, 02:12 PM
military flashlights come with red and blue lens filters. tanks have red and blue filter on their operating lights also.

both red and blue filters protect night vision from bright lights.

in the army the different filters are used for signalling.

RedTerex
06-01-2004, 11:56 PM
RedWine says "...Plus will we have the ringing bell when "Alarm !! Dive !! Dive !!" alarm is announced ?..."

I hope so too ! The rendition in PA/SH2 is quite good when you select to dive to a certain depth.

RedTerex

AndrewOC
06-20-2004, 02:12 AM
Interesting...... but why do not use White light for that ?

Well, say you look at a highway for a while, and you watch all the while lights going past. Then, some person with a fancy sports car goes past at about 90mph, with blue tinted lenses on his lights. You squint. So far, i have not found any evidence apart from a note written by some chief in a book about it.

Redwine
06-20-2004, 06:02 AM
Well, I had seen it in the Das Boot movie.....

In the mocie there is a clear diference between the white nd the blue light......

It is well know the function of white and red lights....... white is for best contrast, and for circadian ritm estimulation.

Red is used because the pupile size is the same in red light than in night vision....... for that fact when you go to the bridge or look at the periscope you do not need pupile adaptation.

Red lenses was for avoid flare and spot search lights at night...... did you noted the red glasses they use in the movie ?

But ..blue light ? It is present, and for that I can see they use it for combat time..........

But may be an invention of the movie of course..........

______________________________
.
http://personales.ciudad.com.ar/pietraroja/imagenes/firmas/EscudoU552b.jpg
.
The Ancient History of the Submarine
"Subgenesis" (http://www.iespana.es/Subgenesis/subgenesis/sg00.htm)

Manual TDC
"HTDC Tutorial" (http://www.iespana.es/rotteufel/htdc_tutorial/a_start.htm)
.

Drebbel
06-20-2004, 07:05 AM
I do not know why the DB series had blue-light, but I do know some maps can not be red under red-light.

The forums over at uboat.net have a zillion discussions and fact about this blue/red/white issue.

Bruno_Lotse
06-20-2004, 09:59 AM
As I can gather from Das Boot movie red light was only in Zentrale and Conning Tower - two places with direct access to boat's Bridge. Anywhere else there was a blue light which performed the same functions as the red light in Zentrale - distinguish nighttime from daytime or to indicate that the boat is in direct engagement with an enemy when 'Auf Gefechtstationen' command is issued.

Bruno Lotse
U743

Redwine
06-20-2004, 03:41 PM
<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR> Drebbel wrote :

I do not know why the DB series had blue-light, but I do know some maps can not be red under red-light.

The forums over at uboat.net have a zillion discussions and fact about this blue/red/white issue.<HR></BLOCKQUOTE>

Thats correct Drebbel, by own experience reading manuals and navigation maps during hours under red light, all lines, text, marks in red colour are invisible under red light........


<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>Bruno-Lotse wrote :

As I can gather from Das Boot movie red light was only in Zentrale and Conning Tower - two places with direct access to boat's Bridge. Anywhere else there was a blue light which performed the same functions as the red light in Zentrale - distinguish nighttime from daytime or to indicate that the boat is in direct engagement with an enemy when 'Auf Gefechtstationen' command is issued.

Bruno Lotse
U743<HR></BLOCKQUOTE>

I do not knows if they has the choice of select where switch on or not the red light, Bruno.

It is needed for the people who will have acces to the bridge and the periscopes........ people in the engine room may be do not need it....... but the people at the control room and the conning tower, must to be isolated from the zones of the ship with no red light.... I do not know if that was posible........

Blue light has no the same effect that the red light..... red light produce a eye pupile adaptation similar or the same as for night vision......... blue light dont.

Well, may be we are not sure about this but it ia an interesting conversation...........

______________________________
.
http://personales.ciudad.com.ar/pietraroja/imagenes/firmas/EscudoU552b.jpg
.
The Ancient History of the Submarine
"Subgenesis" (http://www.iespana.es/Subgenesis/subgenesis/sg00.htm)

Manual TDC
"HTDC Tutorial" (http://www.iespana.es/rotteufel/htdc_tutorial/a_start.htm)
.

Leif...
06-21-2004, 01:16 AM
I have an old note where I have written that the red light where lit not only in the tower and the control room but also in the compartments right before and after the control room. The other rooms where constantly lit with white light no matter the time of the day.

Blue light however where used by ships in a convoy as position lights, the advantage being that it can‚'t be seen from a far distance.

Leif‚...

TASKFORCE1x1
06-21-2004, 02:32 AM
http://ubbxforums.ubi.com/images/smiley/16x16_smiley-very-happy.gif "The blue light is for battle conditions" Ohhh, I thought the blue light ment the ‚©rapper was unavailable (occupied). God I was way off. LOL http://ubbxforums.ubi.com/images/smiley/16x16_smiley-very-happy.gif

Keep on Smiling'

HeibgesU999
06-21-2004, 05:06 PM
Every military map I every read was specifically made red light readable. So they could be read at night with the red lens filter. If they used the red lights, its surprising they didn't think to make their maps readable with it.

Bruno_Lotse
06-21-2004, 06:45 PM
My input on red - blue lights issue is based on routines from Das Boot which I am sure quite accurate (This is not 'Enemy Below' movie after all).

As you may recall when the first time they were attacked by a DD, that was a daytime. Lights in the Conning tower where the Old man was riding his attack scope trying to hunt down that DD, were immediately switched to red.In Zentrale at that moment white light stayed as is. In torpedo room, however, they switched from white to blue lights, evidently that meant to indicate battle condition.

I would recommend checking out full, uncut version of the Das Boot. There you will find tons of nighttime scenes.
One of my favorite is just before midnight the first watch is getting ready to go on top. Guys assembled in Zentrale, staying there to get their eyes used to night darkness. They passing away time drinking coffee and peeking on the Old Man in his nook reading a letter from ostensibly his lover (Flier's widow). This fact inspired them discuss trick that Nazi chicks can do 'They stick chalk in their asses and write on the chalkboard, "Otto Otto" That's why they are so flexible'. In Zentrale - red light to allow first watch guys to get used to darkness. Yet it is very visible that in other compartments blue light, specifically where other guys are sleeping and a white light where due to one reason or another guys on duty need more light to do their job - gully for instance where the cook is making coffee for the watch guys.

Bruno Lotse
U743