SPECTRA OF FLUORESCENT LIGHT BULBS


This web page will be for nothing but spectra of various artificial and natural light sources other than LEDs and lasers - they have their own web pages here.
Ocean Optics USB2000 Spectrometer donated by P.L.
As of 10-10-07, I've been using a PC2000-ISA Spectrometer from Ocean Optics that I received several years ago, but that I didn't have a home for until now.
As of 03-08-08, I once again have the USB2000 spectrometer, enabling color spectra again.




CCFTs (Cold Cathode Fluorescent Tubes)

Spectrographic plot
Spectrographic analysis of the UVC CCFT in the Mini Disinfecting UV Scanner; after tube has "warmed up" for several minutes.





Spectrographic plot
Spectrographic analysis of the UVC CCFT in the Mini Disinfecting UV Scanner after "warm up"; spectrometer's response narrowed to a range of 179nm to 380nm.
Deliberately "overexposed" to show weaker UV spectral features.


Spectrographic plot
Spectrographic analysis of the UVC CCFT in the Mini Disinfecting UV Scanner.


Spectrographic plot
Same as above; spectrometer's response band narrowed to a range of 250nm to 260nm.



Spectrographic plot
Same as above; spectrometer's response band narrowed to a range of 175nm to 380nm
and deliberately "overexposed" to show weaker UV spectral lines.


Spectrographic plot
Spectrographic analysis of the CCFT in the 3 in 1 LED/Incandescent/CCFT Flashlight; after the tube has warmed up for ~5 minutes.


Spectrographic plot
Spectrographic analysis of the CCFT in the 3 in 1 LED/Incandescent/CCFT Flashlight.


Spectrographic plot
Spectrometer's response band narrowed to a range of 180nm to 230nm.
This shows that there is *SOME* emission at "vaccum UV" wavelengths; responsible for producing ozone.
Baseline was artificially lowered with Photoshop.


Spectrographic plot
CCFT in an Energizer Arc White.


Spectrographic plot
CCFT (Cold Cathode Fluorescent Tube) in an Energizer Double Bright Flashlight.



CFLs (Compact Fluorescent Lamps) with integral screw base

Spectrographic plot
Spectrographic analysis of the unknown-type CFL in my ceiling light.


Spectrographic plot
Spectrographic analysis of the trunk of a "palm tree" CFL bulb.


Spectrographic plot
Spectrographic analysis of the fronds (leaves) of a "palm tree" CFL bulb.


Spectrographic plot
Spectrographic analysis of a GE 14 watt Bug Light CFL.


Spectrographic plot
Spectrographic analysis of an N:Vision "Daylight" 5500°K 9W CFL.


Spectrographic plot
Spectrographic analysis of an N:Vision "Bright White" 3500°K 9W CFL.


Spectrographic plot
Spectrographic analysis of a Sylvania 3000°K 13W CFL.


Spectrographic plot
Spectrographic analysis of a Sylvania 3500°K 13W CFL; warmish in color.


Spectrographic plot
Spectrographic analysis of a Trisonic "soft white" ~6500°K 30W CFL.


Spectrographic plot
Spectrographic analysis of a Lights of America "Sunlight" ~6500°K 14W CFL.


Spectrographic plot
Spectrographic analysis of a Commercial Electric 14W CFL.


Spectrographic plot
Spectrographic analysis of a Trisonic "soft white" ~6500°K 9W CFL.


Spectrographic plot
Whitish-yellow light from a GE brand compact fluorescent bug light.


Spectrographic plot
Yellow light from a Feit Electric EcoBulb compact fluorescent bug light.


Spectrographic plot
Warm white light from a Sunbrite 18W 3,000°K compact fluorescent lamp.
This is a "dollar store" CFL.


Spectrographic plot
Compact "blacklight" fluorescent light bulb; Mr. Light brand. Hot; 184°F (84.4°C).


Spectrographic plot
Compact "blacklight" fluorescent light bulb; Mr. Light brand. Cold.


Spectrographic plot
Compact fluorescent light bulb; TCP brand, model # E 149698.
Probably nominally 2700°K. This is a typical compact fluorescent spectrum.
Rated to consume 23 watts at 110 to 130 volts AC 60Hz.



CFLs (Compact Fluorescent Lamps) with socket adapter ballast

Spectrographic plot
Spectrographic analysis of an Osram 2700°K 9W CFL.


Spectrographic plot
Spectrographic analysis of a Philips 5000°K 13W CFL.


Spectrographic plot
Spectrographic analysis of a Philips 4100°K 13W CFL.



LINEAR & "U"-SHAPED FLUORESCENT LAMPS:

Spectrographic plot
Spectrographic analysis of the UVC fluoro tube in the UV Spectracidal Water Purifier; newer software & settings used.


Spectrographic plot
Spectrographic analysis of the UVC fluoro tube in the UV Spectracidal Water Purifier; newer software & settings used (deliberately "overexposed" to show weaker spectral lines in the UV); newer software & settings used. Spectrometer's response narrowed to a range of 174nm to 384nm to show *ONLY* UV emission!!!


Spectrographic plot
Spectrographic analysis of a UVC fluorescent lamp.
A *VERY STRONG* odour of ozone is detected, yet the ~185nm spectral line is not visible.


Spectrographic plot
Spectrographic analysis of a UVC fluorescent lamp.
The spikes you see here are nothing more than spectrometer noise.
Video clip (.AVI format) showing the spectrometer noise at these wavelengths.
***EXTREME CAUTION TO DIAL-UP USERS***
This video is ~2.44MB (2,531,812 bytes) in length.


Spectrographic plot
Longwave (UVA) radiation from a portable UVA fluorescent lamp.


Spectrographic plot
Fluorescent bulb in a Radio Shack portable fluoro light.


Spectrographic plot
Spectrographic analysis of the fluoro tubes in an Energizer® Illumifold™ Fluorescent Lantern.


Spectrographic plot
Spectrographic analysis of a Sylvania "White" nominally 3500°K 15W fluoro lamp.


Spectrographic plot
Spectrographic analysis of a Sylvania "Household Fluorescent Interior Design" nominally 3000°K 15W fluoro lamp.


Spectrographic plot
Spectrographic analysis of a General Electric "Soft White" 3000°K 20W fluoro lamp.


Spectrographic plot
Spectrographic analysis of a Philips TLD 15W / 03 actinic fluoro lamp.
This lamp is *VERY* blue like the Philips lamp directly below.


Spectrographic plot
Spectrographic analysis of a Philips F20T12/BB 20W "Special Blue" fluoro lamp.
This lamp is *VERY* blue.


Spectrographic plot
Spectrographic analysis of a Philips "Natural Sunshine" 5000°K 15W fluoro lamp.


Spectrographic plot
Spectrographic analysis of a 20W Sylvania "Gro-Lux" fluoro tube.
The light has a slight but noticeable pink tint to it.


Spectrographic plot
Spectrographic analysis of a 15W 18" Philips "Plant & Aquarium" fluoro tube.
The light has a distinctly pink tint to it.


Spectrographic plot
Spectrographic analysis of a GE F2012B blue fluoro lamp.


Spectrographic plot
Spectrographic analysis of a Westinghouse F20T12/P pink fluoro lamp.


Spectrographic plot
Light from a Duro-Lite "AQUATINIC" fluorescent tube.
Color temperature is approximately ~6500°K.


Spectrographic plot
Light from a Hagen "Marine Glo" actinic 43.74cm fluorescent tube.
Note the strong spike at 435.8nm in the deep blue portion of the spectrum.


Spectrographic plot
Longwave (UVA) radiation from the 352nm Portable UVA Lamp.


Spectrographic plot
Longwave (UVA) radiation from the "flourescent" "blacklite" "lite" "toob"
in a "Blak Ray" ML-49 battery-powered handheld lamp.


Spectrographic plot
UVC fluorescent tube in a UV Spectracidal Water Purifier.


Spectrographic plot
UVC fluorescent tube in a UV Spectracidal Water Purifier, deliberately overexposed to show weaker spectral lines.


Spectrographic plot
{Supposed to be} a UVC (shortwave) "flourescent" "lite" "blub".














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