Outline style LED pedestrian signals still in use

[PurdueBill]

I have wondered for a long time about some pedestrian signals in Peabody, Mass that appeared to be LED but were installed before LED became common (late 80s/early 90s iIrc, which would be early for LEDs) and have worded messages.  If not LED, are they little incandescent bulbs?  Are they an early LED type?  I thought of them in the context of the outline hand/figure signals, which also involve rows of LEDs, not filled-in fields.
If my foggy memory serves, they appeared at more intersections than the one linked, but Peabody Square, Main & Washington, and Central/Railroad/Walnut don't have their original pedestrian signals anymore.

Are you sure it is LED and not fiber optic?  White LEDs were not available at the time.  Perhaps it could be fiber optic.

That could be.  I never had thought of them as LED until this topic jogged my memory of those signals.  They always seemed out of profile for Peabody, which has always liked to make its own signs that are not quite on spec (square symbol Signal Ahead, more information on an 18x18 square than DPW could put on two large paddle signs, etc. etc.).  Fiber would make sense given the appearance, although I wonder why they would have gone to that trouble.  Must have been a sale!

[freebrickproductions]

I have wondered for a long time about some pedestrian signals in Peabody, Mass that appeared to be LED but were installed before LED became common (late 80s/early 90s iIrc, which would be early for LEDs) and have worded messages.  If not LED, are they little incandescent bulbs?  Are they an early LED type?  I thought of them in the context of the outline hand/figure signals, which also involve rows of LEDs, not filled-in fields.
If my foggy memory serves, they appeared at more intersections than the one linked, but Peabody Square, Main & Washington, and Central/Railroad/Walnut don't have their original pedestrian signals anymore.

Are you sure it is LED and not fiber optic?  White LEDs were not available at the time.  Perhaps it could be fiber optic.

That could be.  I never had thought of them as LED until this topic jogged my memory of those signals.  They always seemed out of profile for Peabody, which has always liked to make its own signs that are not quite on spec (square symbol Signal Ahead, more information on an 18x18 square than DPW could put on two large paddle signs, etc. etc.).  Fiber would make sense given the appearance, although I wonder why they would have gone to that trouble.  Must have been a sale!

Could be Fiber-optic. If they fade in and out on the flashing don't walk, then they are fiber-optic.