This post is part of the A to Z Challenge, in which each day of April a post is made inspired by a letter of the alphabet. Each post will be related to the research done on upcoming trends for the near-future techothriller series Shadow Decade.
The earliest use for LEDs were the sort of red “standby” lights, like you’d see on televisions. This was because back when they were introduced in the 60s, they could only handle lower-frequency (red) light. It took 30 years for them to develop blue (high frequency) LEDs, an accomplishment that proved worthy of the Nobel Prize.
The technology has continued to evolve and be refined, to the point where they are quickly replacing filament-based lighting in countries across the world.
There’s an ambitious plan in New York to replace all their street lights with LEDs by sometime next year, due to the lower energy and maintenance requirements. Widespread adoption of LEDs will lead to urban areas that are consistently and safely lit, leading to an overall decrease in crime.