Earllad t1_j12f6vn wrote on December 21, 2022 at 4:12 AM

The same model of bulb, or that same bulb exactly?

Rampage_Rick t1_j12m5p2 wrote on December 21, 2022 at 5:17 AM

I doubt it was the first visible-wavelength LED, as that probably didn't put out enough light, and wasn't completely packaged either.

See photo on top-right of page 965: https://www.cambridge.org/core/services/aop-cambridge-core/content/view/8A20CA7B75C337853C5328449851A663/S088376941200262Xa.pdf

Those first-gen production red LEDs sold for about $260 each

Riegel_Haribo t1_j12olu6 wrote on December 21, 2022 at 5:43 AM

Who invented that LED? GE. It was visible, from your article "Within months of the invention, General Electric was selling Holonyak’s red LEDs"

And was there any connection?

"...points out that the television special, bankrolled by GE for its General Electric Fantasy Hour, took about 18 months to complete and cost more than $500,000 to produce, an amount that would exceed $4.5 million today."

Rudolph could have had one of RCA's green LEDs - 1958. And RCA had blue in 1972.

Rudolph figure had "lost" its nose when it came to Antiques Roadshow in 2006, or maybe just resold in 1965?: https://www.youtube.com/watch?v=0t0GaNTdZA8 - it then auctioned for $400000, (but that didn't keep some slimebag Christmas museum from keeping their $20000 gofundme donations to acquire it.)

Seraph062 t1_j14f3te wrote on December 21, 2022 at 4:22 PM

> Rudolph could have had one of RCA's green LEDs - 1958.

You're confusing things here: RCA had a patent for an infrared LED in 1958 (developed by Braunstein Rubin and Egon Loebner, and documented in US Patent 3102201). RCA also had a Green LED in the 70's (US Patent 3819974) but that was a different technology developed by a different group of people.

centizen24 t1_j12o1b1 wrote on December 21, 2022 at 5:37 AM

Bit of a longer video, but this lady has one of the best collections of early LEDs and other light and display elements and makes some very interesting videos

https://m.youtube.com/watch?v=yusrrOPM43o

suborbitaldrift t1_j153dhz wrote on December 21, 2022 at 6:57 PM

Knew it was gonna be Fran before I clicked. Great channel and genuinely kind woman.

undergroundgeek OP t1_j12h3j1 wrote on December 21, 2022 at 4:29 AM

I would slightly lean toward same exact bulb if you read the article. But it could be just a model it was based from? Not sure, so I had to pick. I tried to find other sources to verify but couldn’t find any. Smithsonian seemed reputable source, let me know if you find any others.

Edit: comma and more words.