opticom started in 1960s in baltimore
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Peteri Szerlagi
Mar 21, 2023, 8:46:24 PM3/21/23
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https://youtu.be/TrVLmTLHgew - Flipper Zero Controlling Traffic Lights
- 11 minute video - 500,000 views in 30 days
opticom - emergency traffic light preemption device
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per yt comment
Fred Blonder
3 weeks ago
I recall an article in Popular Science from the mid 1960s on an early
prototype of this being tested in Baltimore. It used a standard
photographic flashtube mounted on the emergency vehicle, strobing at
40 Hz.
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1 reply
Peter Fairlie
3 weeks ago
I heard about that from the 60's. The Flipper can also do 40 Hz.
- 11 minute video - 500,000 views in 30 days
opticom - emergency traffic light preemption device
=====================
per yt comment
Fred Blonder
3 weeks ago
I recall an article in Popular Science from the mid 1960s on an early
prototype of this being tested in Baltimore. It used a standard
photographic flashtube mounted on the emergency vehicle, strobing at
40 Hz.
23
Reply
·
1 reply
Peter Fairlie
3 weeks ago
I heard about that from the 60's. The Flipper can also do 40 Hz.
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