Blacker Than Black- Even Absorbs Laser

Started by Anonymous in sci.electronics.design4 years ago 1 reply

Vantablack http://www.sciencealert.com/this-object-has-been-sprayed-with-the-world-s-blackest-pigment-and-i t-s-freaking-us-out

Vantablack http://www.sciencealert.com/this-object-has-been-sprayed-with-the-world-s-blackest-pigment-and-i t-s-freaking-us-out


Who OEMs Dell laser printers?

Started by DaveC in sci.electronics.design8 years ago 5 replies

Past and present OEMs? Trying to see what brand toner they use... Thanks!

Past and present OEMs? Trying to see what brand toner they use... Thanks!


About to receive my first 3D printer

Started by Anonymous in sci.electronics.design2 months ago 12 replies

310 x 310 x 450 mm volume. I was thinking about doing an unboxing video. Dual independent head. Getting a laser too.

310 x 310 x 450 mm volume. I was thinking about doing an unboxing video. Dual independent head. Getting a laser too.


cool video, laser retina treatment

Started by John Larkin in sci.electronics.design3 years ago 3 replies

https://int.vision.lutronic.com/intl/rgen/ -- John Larkin Highland Technology, Inc lunatic fringe electronics

https://int.vision.lutronic.com/intl/rgen/ -- John Larkin Highland Technology, Inc lunatic fringe electronics


No more drones

Started by Jan Panteltje in sci.electronics.design6 years ago 16 replies

No more drones: http://www.foxnews.com/tech/2015/09/02/laser-cannon-that-kills-drones.html Only 2kW diodes?

No more drones: http://www.foxnews.com/tech/2015/09/02/laser-cannon-that-kills-drones.html Only 2kW diodes?


Ping George Herold: The Lyman-alpha transition for anti-hydrogen detected

Started by Anonymous in sci.electronics.design3 years ago 15 replies

Laser breakthrough has physicists close to cooling down antimatter https://www.sciencedaily.com/releases/2018/08/180822131053.htm hehe :-)

Laser breakthrough has physicists close to cooling down antimatter https://www.sciencedaily.com/releases/2018/08/180822131053.htm hehe :-)


What's the term for this?

Started by Chris in sci.electronics.design6 years ago 41 replies

Say I have a laser diode rated for continuous duty at a Vf=4.5V @ 500mA but I want to push it to a higher power but at a lower duty cycle....

Say I have a laser diode rated for continuous duty at a Vf=4.5V @ 500mA but I want to push it to a higher power but at a lower duty cycle. What's the fancy term for that?


OT: Catching Up with the Internet

Started by D from BC in sci.electronics.design10 years ago 1 reply

So I get the lonnnng instruction sheet with my toner on how to refill my laser cartridge. :( No no no no.. It's not like that anymore! You...

So I get the lonnnng instruction sheet with my toner on how to refill my laser cartridge. :( No no no no.. It's not like that anymore! You go to Youtube and find the video. :) And I found one. And it's so much more clear. Vid beats text. There's no flying cars in this future but the internet is really cool. :)


insane

Started by John Larkin in sci.electronics.design6 years ago 175 replies

http://carbonengineering.com/ -- John Larkin Highland Technology, Inc picosecond timing laser drivers and...

http://carbonengineering.com/ -- John Larkin Highland Technology, Inc picosecond timing laser drivers and controllers jlarkin att highlandtechnology dott com http://www.highlandtechnology.com


1mm packet of photons

Started by amdx in sci.electronics.design9 years ago 17 replies

Hi all, Here's a TED video of pulsed laser used in photography. Watch it all, because at some point you might say, no that can't be right,...

Hi all, Here's a TED video of pulsed laser used in photography. Watch it all, because at some point you might say, no that can't be right, but then he explains it. 11 minutes. http://www.youtube.com/watch?annotation_id=annotation_748924&feature=iv&hd=1&src_vid=SoHeWgLvlXI &v=mfgsQX78hg8#t=12s Mikek


news

Started by John Larkin in sci.electronics.design7 years ago 16 replies

Do a news search for Rajendra Pachauri Interesting. -- John Larkin Highland Technology, Inc picosecond timing laser...

Do a news search for Rajendra Pachauri Interesting. -- John Larkin Highland Technology, Inc picosecond timing laser drivers and controllers jlarkin att highlandtechnology dott com http://www.highlandtechnology.com


OT: Camille rocks

Started by John Larkin in sci.electronics.design7 years ago 16 replies

https://www.youtube.com/watch?v=88_3AhU0-B0 -- John Larkin Highland Technology, Inc picosecond timing laser drivers and...

https://www.youtube.com/watch?v=88_3AhU0-B0 -- John Larkin Highland Technology, Inc picosecond timing laser drivers and controllers jlarkin att highlandtechnology dott com http://www.highlandtechnology.com


Red Square

Started by John Larkin in sci.electronics.design7 years ago 29 replies

Looks like Berlin, 1939. http://tinyurl.com/otvkle3 -- John Larkin Highland Technology, Inc picosecond timing laser drivers...

Looks like Berlin, 1939. http://tinyurl.com/otvkle3 -- John Larkin Highland Technology, Inc picosecond timing laser drivers and controllers jlarkin att highlandtechnology dott com http://www.highlandtechnology.com


Red laser detector

Started by Chris in sci.electronics.design6 years ago 15 replies

Hi all, The Chinese are knocking out lasers like these at ridiculously cheap prices currenty: http://tinyurl.com/z59lk8s And I've seen...

Hi all, The Chinese are knocking out lasers like these at ridiculously cheap prices currenty: http://tinyurl.com/z59lk8s And I've seen others *even* cheaper than that including postage. There are a good many applications for these parts that spring to mind, but the ones I'm thinking about require some sort of sensor capable of detecting if the beam is broken. I'm not sure what wo...


TEC's as heaters @ 60 - 70 C

Started by George Herold in sci.electronics.design7 years ago 24 replies

I got around to testing a whole bunch of laser diodes, which we tune to the 780 nm line of Rubidium. A number of them (~10-20%) have a long...

I got around to testing a whole bunch of laser diodes, which we tune to the 780 nm line of Rubidium. A number of them (~10-20%) have a long wavelength, and I'll have to cool them to T < 10 C*. I'm a bit worried about condensation. (I just have to get below the local dew point.. is that correct?) So I could hold these diodes back, we've got plenty. I then thought that I could run '


spi RF attenuator

Started by John Larkin in sci.electronics.design7 years ago 18 replies

Who makes decent SPI programmable attenuators? I need DC to, say, 300 MHz or better. -- John Larkin Highland Technology,...

Who makes decent SPI programmable attenuators? I need DC to, say, 300 MHz or better. -- John Larkin Highland Technology, Inc picosecond timing laser drivers and controllers jlarkin att highlandtechnology dott com http://www.highlandtechnology.com


Sub-shot noise Laser Gyro

Started by Tim Williams in sci.electronics.design3 years ago 7 replies

https://phys.org/news/2019-05-entangled-photon-gyroscope-classical-limit.html Thoughts? Tim -- Seven Transistor Labs, LLC Electrical...

https://phys.org/news/2019-05-entangled-photon-gyroscope-classical-limit.html Thoughts? Tim -- Seven Transistor Labs, LLC Electrical Engineering Consultation and Design Website: https://www.seventransistorlabs.com/


Cute dpot hack for increased resolution

Started by Phil Hobbs in sci.electronics.design1 year ago 44 replies

So I'm doing a simplified version of the differential laser noise canceller, which in the spherical cow universe looks like it does very well...

So I'm doing a simplified version of the differential laser noise canceller, which in the spherical cow universe looks like it does very well out to about 10 MHz, thanks to the amazing properties of BFP640s and some new photodiodes with reduced series resistance. (At least according to Hamamatsu.) One thing I need for this is an adjustable resistance with good bandwidth. The fastest...


home battery

Started by John Larkin in sci.electronics.design7 years ago 175 replies

http://www.theregister.co.uk/2015/02/12/musk_to_unveil_home_storage_battery/ -- John Larkin Highland Technology,...

http://www.theregister.co.uk/2015/02/12/musk_to_unveil_home_storage_battery/ -- John Larkin Highland Technology, Inc picosecond timing laser drivers and controllers jlarkin att highlandtechnology dott com http://www.highlandtechnology.com


TI opamp

Started by John Larkin in sci.electronics.design7 years ago 46 replies

Has anybody used this one? http://www.ti.com/product/lme49990 Sounds too good to be true. -- John Larkin Highland...

Has anybody used this one? http://www.ti.com/product/lme49990 Sounds too good to be true. -- John Larkin Highland Technology, Inc picosecond timing laser drivers and controllers jlarkin att highlandtechnology dott com http://www.highlandtechnology.com