Boeing 777 question!?

Question

i have a question regarding the lights above the exit signs on boeing 777 air crafts...there are like 10 different lights on top of the sign and I wonder what they mean? During a flight, I was thinking..doesn't it correspond to someone being in the restroom? can someone help?

i have pictures on this flickr link (what does that blue light on top of the exit sign mean?)

http://flickr.com/photos/laughingass/2105816463/

Answer 1

Hmm... we can't really say.

However, feel free to try Google, I'm sure they'll have information on there somewhere!

I typed in 'lighting interior on aircraft', and got a few good results! The link is below.

Answer 2

They are for the flight attendants.  One means the other attendant is calling them, one means the pilots are calling them, and some say whether the washroom is occupied.

Answer 3

Those are for the flight attendants.  Some mean the cockpit is calling them, others mean passengers are calling.  It's a secret which one, so please don't advertise the right answer!