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VU1 ESL Electron Gun Lamp

Electron Stimulated Luminescence lamp.

Osram_Circulux_32w.JPG ESL_Lamp.JPG Neoball_2.JPG Neoball_Box.JPG Diall_CFL.JPG
File information
Album name:Paul / Integrated Compact Fluorescent Lamps
Manufacturer:VU1 Corp.
Model:ESL 65w
Power Consumption:65w
Working Voltage:120v
Overall Width / Diameter:R30 95mm
Cap Type:E26
Light Colour Temp:~3000K
Lumen Output:500lm
Burn Position :Universal
Run-Up Time :2 seconds to full brightness
Restrike Time :2 seconds
Lifespan:11,000 hours
Circuit Type:Cathode ray tube, electron gun and onboard HT driver circuit
Comments:A CRT lamp! This lamp uses an electron gun that excites the phosphor in the same way as a TV cathode ray tube! Dating to 2011, this was one way of producing a totally mercury free fluorescent lamp. Thanks to James for this interesting lamp! It even behaves like a TV screen on startup and is even dimmable!
Date / Code:2011
Country Of Origin:China
Filesize:512 KiB
Date added:Jun 05, 2018
Dimensions:1600 x 1385 pixels
Displayed:38 times
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Comment 1 to 12 of 12
Page: 1

Andy   [Jun 07, 2018 at 11:36 AM]
Interesting lamp! I'm guessing this is perhaps less efficient than a regular CFL but with the benefit of no mercury.
Paul   [Jun 08, 2018 at 12:36 AM]
It is certainly not as efficient as CFL. I think the arrival of [cough] LED put pay to this product!
Linear_SLI   [Jun 09, 2018 at 07:22 AM]
Electron Stimulated Luminescence lamp?????, can`t say I have ever heard of one of them?, is it some form of induction set up?
:edit:, or maybe I`ll just read the comment box before I ask stupid questions!!!! Laughing
James   [Aug 17, 2018 at 11:15 PM]
The efficacy is far lower than claimed. The box states 500 lumens but I measured only a pathetic 300lm, which puts its efficacy below incandescent. Incredible that someone decided to invest in setting up a factory to build these and then market them. Naturally it was a commercial failure and they quickly disappeared.
Zelandeth   [Aug 19, 2018 at 12:25 AM]
We need video of that turning on and off I reckon! Wonder if the glassware was surplus from another product...and what sort of CRT it is...is it just a flood beam type, or is there any focusing hardware in there (albeit unused in this application)?
Paul   [Aug 19, 2018 at 12:50 AM]
I'm sure we can come up with a video for you....!
Callum   [Aug 19, 2018 at 02:54 AM]
I missed an opportunity to buy one of these a few years back, not sure why I didn't jump on it but there you go. Odd technology.
What I'd be curious to know is does it make that high pitched hissing sound that CRT TVs did back in the day. My hearing was more sensitive then, and I could tell from right at the other end of the house when a TV went on; I'd maybe not hear it so much now.
Zelandeth   [Aug 19, 2018 at 12:12 PM]
Don't imagine it would feature the same whistle/hiss. That's primarily a feature of CRT televisions due to the frequency that the line output stage runs at, which is dictated by the video standard being displayed. With no such requirement here there's no reason for them to pick any particular drive frequency.
Paul   [Aug 19, 2018 at 12:38 PM]
It does give static pokes! Ask Tom! ROFL ROFL ROFL
Tom   [Aug 19, 2018 at 05:15 PM]
Yes I did get a static zap off it, a bit more of that you'd get from touching the front of the telly back in the day too. I feel inclined to call this the Evil Edna lamp! Still a very interesting lamp nonetheless.
Zelandeth   [Aug 21, 2018 at 12:36 AM]
Worst static thing I ever had was a monitor that had one of those mesh anti-glare screens on it. It was missing the ground connection and as a result just after as a really effective capacitor until some idiot touched it. It could give properly nasty belts that could, the snap could be heard from across the house, never mind the yelp! Do have to wonder what EHT voltage they're driving this at to get such a high brightness...the old projection CRT tubes used to run at North of 30kV in many cases...with the associated potential X-ray hazards.
Paul   [Aug 21, 2018 at 10:06 PM]
I got a 36kV poke once from a CRT once! Supposedly a practical joke! Mad Mad

Comment 1 to 12 of 12
Page: 1

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