Return to the thumbnail page Display/hide file information See previous file See next file

Spectrum of the mercury starved Osram HO 54W/865 Germany, at my father kitchen, during the pink phase, when only the ends starts glowing bright.

Spectrum of the mercury starved Osram HO 54W/865 Germany, at my father kitchen, during the pink phase, when only the ends starts glowing bright.

Click to view full size image

Mainly triphosphors bands and very weak mercury lines.

This proves that the statement of Andrew, "Globe Collector", that a fluorescent lamp that glowing dim color is contaminated or "air poisoned" in his language, is false. Mercury can react with glass, phosphors and electrodes materials. This is the way it is "lost". When air gets into the lamp, the filaments burns out and the lamp voltage gets to the air breakdown voltage, so the discharge can't be sustained with a fluorescent ballast anymore, but only with HV transformer like eclipsislamps done here .

IMG_7503 resized.jpg IMG_7449 (resized).jpg IMG_7341 resized.jpg IMG_7015 (resized).jpg

File information

File information

Download: Download this File
Filename:IMG_7341 resized.jpg
Album name:dor123 / Spectra of light sources with my discs
File Size:308 KB
Date added:Dec 16, 2018
Dimensions:1296 x 972 pixels
Displayed:32 times
Date Time:2018:12:15 16:17:35
DateTime Original:2018:12:15 16:17:35
Exposure Bias:0 EV
Exposure Time:1/20 sec
FNumber:f 4.5
Flash:No Flash
Focal length:15.944 mm
Model:Canon PowerShot SX150 IS
White Balance:1
Favorites:Add to Favorites
Globe Collector

Gender: Male
Posts: 26
View Gallery

Preserving the Brightest Ideas of Our Age

View Profile Personal Message (Offline)
Jan 12, 2019 at 04:00 AM Author: Globe Collector
Agaiin, the resolution of the spectrum is very low, too low to be barely of any use, and the violet line at the top, isn't that mercury 437nm?

It is very difficult to get a spectrum when there is a fully functional tube right alongside the faulty one, the light from the fully functional one reflects off and penetrates through the faulty one contaminating its spectrum.

Oh, and it is, " my Father's kitchen..."

Manufactured articles should be made to be used, not made to be sold!

Fee, Fye, Fow, Fum, A dead man's eye and a parrot's BUM!

Hero Member

Gender: Male
Posts: 2472
View Gallery
Other loves are computers, office equipment, A/Cs

View Profile WWW Personal Message (Offline)
Jan 12, 2019 at 04:04 AM Author: dor123
It is of mercury, but the spectrum was captured when only the dim pink one was connected and before it warmed up to 865 color.
It is impossible to buy a spectroscope here in Israel, and my only options are going to the Technion or Haifa University, or to buy online (Which my father fearing about). And it is a hard an complicated project to me to build a home made spectroscope.

I"m don't speak English well, and rely on online translating to write in this site.
Please forgive me if my choice of my words looks like offensive, while that isn't my intention.

I only working with the European date format (

I lives in Israel, which is a 230-240V, 50hz country.

© 2005-2019 | Powered by: Coppermine Photo Gallery