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Intelight Electronic Steerable Beam Traffic Signals
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These signals are what will replace the design pioneered by 3M and stolen by McCain. The Intelight is uses a programmable LED array instead of a lens assembly and masking process. These appear to "go blank" just like a 3M with half the space and 3/4 the energy consumption. Theres alot more technology packed into these signals.
The Intelight was built upon the Optisoft platform. Optisoft went defunct in the early 2000's.
You can read the story of Optisoft's failure here
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Looking at your pic, I believe they're located at this intersection.
Here's a pic from a few years back showing the old 3Ms as well as a closeup of a 3M I found on the internet.