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The first Jooby bulb was born this year. Within 2 years the
technology developed and became brighter, more durable
and efficient.
1907 It shines!
Henry Round is the first to discover and to describe the electroluminescence. He noticed the yellow, green and orange glow when running the current through crystal of silicon carbide.
1923Losev’s Glow
Oleg Losev re-conducts the Round’s experiment and studies the nature of the phenomenon.
Later it was named as the electroluminescence of a
semiconductor junction or “Losev’s glow”
The first infrared LED
R. Biard and G. Pittman discover and patent the IR LED technology which is still in use.
1961
The Birthday of LED lamp
N. Holonyak creates a red led, the first to be made of visible light
and becomes “The father of LED”
1962
The first blue LED
Elaborated by J. Pankov of RCA company it was dim and expensive but it is considered to give a rise to blue LEDs mass production.
1971
The great apprentice of a great master
Holonyak’s ex-student G. Craford creates the first yellow LED and
enhances red LED brightness.
1972
Bonus to effectiveness
T. P. Pearsall creates high brightness LED to be used for fiber optics and makes them a part of global communication network.
1976
Traffic is under LED’s control
R. Deeze invents the first LED traffic light. Now his technology
is popular all over the world.
1989
LED revolution
LED becomes mobile
LED flashlights which are more effective and long lasting than
analogs were invented this year.
Come together!
Citizen Electronics creates the first LED module based on Chip-On-Board technology. Lighting appliances production becomes even cheaper and easier.
Jooby’s year
The future of Light
By 2020 LED lamps are forecasted to become the prevailing lighting technology. Their price will fall by 80%.
1993Shuji Nakamura, Isamu Akasaki and Hiroshi Amano create a bright and a cheap blue light emitting diode. This led to the birth of white LEDs and LED displays and to their mass production. The team received a Nobel prize for their development in 2014.
2001
2003
2014
2016...
History of LED