Author Topic: Excimer lamps  (Read 115 times)

Offline klugesmith

  • High Voltage Engineer
  • ****
  • Posts: 219
  • Karma: +5/-0
    • View Profile
Excimer lamps
« on: July 21, 2020, 05:46:46 PM »
Just heard of an emerging technology that might get a boost from Covid abatement.
https://www.laserfocusworld.com/lasers-sources/article/16571809/lowdoserate-excimer-lamps-in-hospitals-schools-and-airports-could-safely-curtail-spread-of-flu-watch-video

Some companies are making excimer lamps that are efficient radiators of UV light at 222 nm.  They claim that that wavelength is good for killing bacteria and viruses, but much safer than 254 nm for people.  Its depth of penetration is so shallow that it doesn't reach live cells in skin or eyes.  (As wavelengths go down and photon energies go up, they interact more strongly with matter & are stopped sooner.  That trend eventually reverses, somewhere between vacuum UV and soft x-rays.)

Those companies have dreams of occupied rooms being continuously irradiated with 222 nm to reduce the spread of pathogens.

A different excimer medium is good for 172 nm, apparently for things like curing of inks and coatings.  Can't be operated in air without generating a lot of ozone.

Anybody here seen or touched such lamps?  Apparently they all need high frequency power, with no electrode touching the reactive media.
Reminds me of sulfur lamps from recent decades, which never caught on for illuminating large areas, and plasma globes.

High Voltage Forum

Excimer lamps
« on: July 21, 2020, 05:46:46 PM »

 


* Recent Topics and Posts

post Air Gap: why and how much?
[Transformer (Ferrite Core)]
HighVoltageRulezz
Today at 06:23:24 PM
post Re: making HV bobbins for ferrite transformers
[Transformer (Ferrite Core)]
HighVoltageRulezz
Today at 06:15:16 PM
post Re: How about some Tesla Coil memes
[General Chat]
AstRii
Today at 05:26:47 PM
post Re: First DRSSTC, No Sparks on Breakout
[Dual Resonant Solid State Tesla coils (DRSSTC)]
TMaxElectronics
Today at 05:25:43 PM
post Re: How about some Tesla Coil memes
[General Chat]
TMaxElectronics
Today at 05:23:40 PM
post Re: First DRSSTC, No Sparks on Breakout
[Dual Resonant Solid State Tesla coils (DRSSTC)]
AstRii
Today at 05:23:37 PM
post Re: Bipolar high voltage multiplier project - more than 70cm hot arc discharge
[Voltage Multipliers]
kilovolt
Today at 01:44:24 PM
post How about some Tesla Coil memes
[General Chat]
AstRii
Today at 01:09:16 PM
post First DRSSTC, No Sparks on Breakout
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Yak
Today at 12:41:06 PM
post Re: X-ray image intensifier
[X-ray]
AlexanderHun
Today at 11:01:46 AM
post Re: Easy to build Polyphonic MIDI Interrupter
[Computers, Microcontrollers, Programmable Logic, Interfaces and Displays]
AstRii
Today at 02:09:13 AM
post Re: Charging a LiPo Battery with an LED driver
[Electronic Circuits]
davekni
August 12, 2020, 11:08:35 PM
post Re: making HV bobbins for ferrite transformers
[Transformer (Ferrite Core)]
davekni
August 12, 2020, 10:49:52 PM
post Re: Moving to a new lab!
[Laboratories, Equipment and Tools]
Mads Barnkob
August 12, 2020, 10:30:54 PM
post Re: making HV bobbins for ferrite transformers
[Transformer (Ferrite Core)]
Teravolt
August 12, 2020, 09:00:50 PM
post Re: making HV bobbins for ferrite transformers
[Transformer (Ferrite Core)]
SteveN87
August 12, 2020, 07:16:43 PM
post Re: making HV bobbins for ferrite transformers
[Transformer (Ferrite Core)]
Teravolt
August 12, 2020, 02:54:33 PM
post Re: Charging a LiPo Battery with an LED driver
[Electronic Circuits]
TMaxElectronics
August 12, 2020, 12:42:50 PM
post Re: Charging a LiPo Battery with an LED driver
[Electronic Circuits]
Twospoons
August 12, 2020, 12:23:58 PM
post Re: Single sided use of Xray XFMR
[Transformer (Ferrite Core)]
HighVoltageRulezz
August 12, 2020, 11:15:07 AM
post Re: making HV bobbins for ferrite transformers
[Transformer (Ferrite Core)]
davekni
August 12, 2020, 04:41:24 AM
post Re: Charging a LiPo Battery with an LED driver
[Electronic Circuits]
davekni
August 12, 2020, 04:06:09 AM
post Re: Charging a LiPo Battery with an LED driver
[Electronic Circuits]
TMaxElectronics
August 12, 2020, 01:58:47 AM
post Re: Charging a LiPo Battery with an LED driver
[Electronic Circuits]
Twospoons
August 12, 2020, 12:56:02 AM
post Charging a LiPo Battery with an LED driver
[Electronic Circuits]
TMaxElectronics
August 11, 2020, 11:24:18 PM
post Re: making HV bobbins for ferrite transformers
[Transformer (Ferrite Core)]
Teravolt
August 11, 2020, 06:34:05 PM
post Re: Fun with wireless power
[Solid State Tesla Coils (SSTC)]
Lightning On Demand
August 11, 2020, 04:19:01 AM
post Re: Fun with wireless power
[Solid State Tesla Coils (SSTC)]
Lightning On Demand
August 11, 2020, 04:17:27 AM
post Re: Fun with wireless power
[Solid State Tesla Coils (SSTC)]
Lightning On Demand
August 11, 2020, 04:10:34 AM
post Re: Single sided use of Xray XFMR
[Transformer (Ferrite Core)]
klugesmith
August 11, 2020, 03:33:02 AM
post Single sided use of Xray XFMR
[Transformer (Ferrite Core)]
HighVoltageRulezz
August 10, 2020, 12:23:05 PM
post Re: XRay Tank- any ideas about what is inside
[Transformer (Ferrite Core)]
HighVoltageRulezz
August 10, 2020, 12:18:04 PM
post Re: making HV bobbins for ferrite transformers
[Transformer (Ferrite Core)]
johnf
August 10, 2020, 10:24:54 AM
post Re: making HV bobbins for ferrite transformers
[Transformer (Ferrite Core)]
davekni
August 10, 2020, 06:20:04 AM
post Re: Welcome new members, come say hello and tell a little about yourself :)
[General Chat]
RoadReaper
August 10, 2020, 05:40:19 AM
post Re: Easy to build Polyphonic MIDI Interrupter
[Computers, Microcontrollers, Programmable Logic, Interfaces and Displays]
Max
August 10, 2020, 02:07:26 AM
post making HV bobbins for ferrite transformers
[Transformer (Ferrite Core)]
Teravolt
August 10, 2020, 01:27:22 AM
post A Tesla coil and an antenna
[General Chat]
TheFreq
August 09, 2020, 09:02:32 PM
post Re: Fun with wireless power
[Solid State Tesla Coils (SSTC)]
Steve Ward
August 08, 2020, 10:22:04 PM
post Re: Fun with wireless power
[Solid State Tesla Coils (SSTC)]
T3sl4co1l
August 08, 2020, 03:36:40 PM
post Re: Fun with wireless power
[Solid State Tesla Coils (SSTC)]
acmq
August 08, 2020, 02:07:52 AM
post Re: LSI Nitrogen Laser tear-down and Homemade TEA Nitrogen and Dye Lasers
[Light, Lasers and Optics]
LesWright
August 06, 2020, 10:20:12 PM
post Re: LSI Nitrogen Laser tear-down and Homemade TEA Nitrogen and Dye Lasers
[Light, Lasers and Optics]
Weston
August 06, 2020, 08:45:59 PM
post Re: Cathodes in Compact Fluorescent Lamps
[Light, Lasers and Optics]
klugesmith
August 06, 2020, 05:41:04 PM
post Re: Dual MOT tesla coil
[Spark Gap Tesla Coils (SGTC)]
Jun
August 06, 2020, 03:53:58 PM
post LSI Nitrogen Laser tear-down and Homemade TEA Nitrogen and Dye Lasers
[Light, Lasers and Optics]
LesWright
August 06, 2020, 03:28:14 PM
post Re: Easy to build Polyphonic MIDI Interrupter
[Computers, Microcontrollers, Programmable Logic, Interfaces and Displays]
AstRii
August 06, 2020, 12:59:03 PM
post Re: Easy to build Polyphonic MIDI Interrupter
[Computers, Microcontrollers, Programmable Logic, Interfaces and Displays]
Mads Barnkob
August 06, 2020, 10:51:43 AM
post Re: How much is the voltage used in Corona Discharge tubes for ozone Generation?
[Transformer (Ferrite Core)]
UB_Serpent
August 06, 2020, 08:40:57 AM
post Re: compact midi interrupter
[Computers, Microcontrollers, Programmable Logic, Interfaces and Displays]
TMaxElectronics
August 06, 2020, 03:22:38 AM

Sitemap 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 
SimplePortal 2.3.6 © 2008-2014, SimplePortal