|
|
Post by edb on Sept 17, 2006 19:26:06 GMT
... the blue flourescent tubes / lights on some Busses for? Anyone Expain?
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Sept 17, 2006 19:29:17 GMT
Probably ones that signify emergency lights, fed off the battery.
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Sept 17, 2006 19:35:16 GMT
the ones by the entrance doors? they are there to stop reflections in the drivers mirror, so he can see that the doors are closed. On some new buses they go on and off and are standard flourescents, but they take so long to flicker on, that by the time they are done turning on the front door is closed and the bus has set off.
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Sept 17, 2006 20:21:31 GMT
The DLR has blue lighting tubes in the cab region on each unit; I suspect they are indeed designed to minimise reflection.
|
|
Colin
Advisor
My preserved fire engine!
Posts: 11,347
|
Post by Colin on Sept 17, 2006 21:37:05 GMT
In my capacity as a former bus driver, I can confirm that blue tubes are indeed used to prevent the driver from being 'dazzled'.
|
|
|
|
Post by Tomcakes on Sept 18, 2006 5:21:10 GMT
Is there something in the blue light that makes it less dazzling / prone to reflection (Phil!!!)?
|
|
|
|
Post by edb on Sept 18, 2006 20:15:56 GMT
Perhaps the wavelength etc can be polarised easier? Red light stops you loosing Night Vision
|
|
