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Various 70watt MH lamps Compared

Various 70watt MH lamps Compared

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Using the standard HPI-T (European) and Na-Hg-Sc (North American) metal-halide spectra as a backdrop, I inserted and aligned some of the more recent 70w lamp spectra taken by dor123.

Both+Gadolinium.jpg Various-70-watt-MH-lamps-Compared.jpg metal-halide-lamps-composite.jpg SodiumSpectraBroadening.jpg

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Lamp Type:Various Metal-Halide

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Filename:Various-70-watt-MH-lamps-Compared.jpg
Album name:lights*plus / Lamp Spectra
Keywords:Lamps
File Size:1661 KB
Date added:Oct 14, 2020
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URL:https://www.lighting-gallery.net/gallery/displayimage.php?pos=-187426
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dor123
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Oct 14, 2020 at 02:39 AM Author: dor123
I think it have another rare-earth that the Odyssea MHQ-T 70W 6500K don't have beside dysprosium, as dysprosium alone can't produces 10,000K.

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 (dd.mm.yyyy).

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

lights*plus
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Oct 14, 2020 at 03:06 AM Author: lights*plus
Well I would think if the 10,000K lamp had another rare earth, there would be many more lines visible in other parts of the spectrum that would be different from the Odyssea 6500 K lamp.

In high-temperature automotive xenon-fired lamps, the highest rated lamps, the 10k and 14k Kelvin lamps, are simple mercury-xenon mixtures. Maybe the vapour-pressures are such that the blue & violet emissions in the spectrum (mercury's 405nm & 436nm lines) become dominant.
dor123
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Oct 14, 2020 at 03:12 AM Author: dor123
Clear mercury lamp produces 5500K and dysprosium alone produces also 5000-6500K. So either another rare-earth is used, or that it is possible to use another halide of dysprosium that produces mainly in the blue part of the spectrum.

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 (dd.mm.yyyy).

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

lights*plus
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George Liv Photo


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Oct 14, 2020 at 03:25 AM Author: lights*plus
Ok I going to try another comparison in a few days to see if there's something else. In the meantime, if you can get better resolutions in the blue part of the spectrum for both your 6500K and 10000K lamps that would really help a lot!
dor123
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Oct 14, 2020 at 07:28 AM Author: dor123
This is my camera causing the blue part to looks like this. For higher resolution, I would need to buy a bridge camera or a DSLR camera, which are too large for my fanny pack bag. Also: I have to hold the camera with one hand and the DVD-R/RW with a second hand, to get spectra capture.
My Odyssea MHQ-T 70W 6500 MH lamp went EOL after only 15 days, as a result of hydrogen impurities: https://www.lighting-gallery.net/gallery/displayimage.php?pos=-183293

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 (dd.mm.yyyy).

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

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