S
[email protected]
- Jan 1, 1970
- 0
Nearly all of the traffic lights in Austin TX are now using LEDs.
That said,
All the Green lights are arranged in a circle. There is clearly a
center LED, and all the other LEDs are arranged in circles around the
center.
All the Red lights are arranged in a honeycomb pattern. Thus along
the edges, you can see these little black notches where the honeycomb
pattern doesn't quite fit the circle.
All the Yellow lights are arranged differently. I can't remember
exactly how at the moment, because I so rarely close enough to the
light when it is yellow to examine the pattern.
The "burning" question is why? Why would all the LED lights in Austin
follow this rule? Does it have something to do with how many LEDs
they are trying to pack in to get an even brightness when green is
compared to red is compared to yellow? (One Guess) Or is it just a
design thing (another Guess). I have done some web searches, as have
some other engineers I know, and we have all come up empty.
Thanks!
That said,
All the Green lights are arranged in a circle. There is clearly a
center LED, and all the other LEDs are arranged in circles around the
center.
All the Red lights are arranged in a honeycomb pattern. Thus along
the edges, you can see these little black notches where the honeycomb
pattern doesn't quite fit the circle.
All the Yellow lights are arranged differently. I can't remember
exactly how at the moment, because I so rarely close enough to the
light when it is yellow to examine the pattern.
The "burning" question is why? Why would all the LED lights in Austin
follow this rule? Does it have something to do with how many LEDs
they are trying to pack in to get an even brightness when green is
compared to red is compared to yellow? (One Guess) Or is it just a
design thing (another Guess). I have done some web searches, as have
some other engineers I know, and we have all come up empty.
Thanks!