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Spectral lamps

Spectral lamps

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Here you can see two Narva spectral lamps and their bases mounted on an test board

06C7288E-AA54-45FF-A9DE-F9B64A27161F.JPG 786F192F-E50B-4EDF-B54B-6D7ED3020B2F.JPG IMG_8760.JPG IMG_7125.JPG

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Filename:IMG_8760.JPG
Album name:Alex / my Bulb museum
Rating (1 votes):
Keywords:Lamps
File Size:570 KB
Date added:Apr 13, 2019
Dimensions:2464 x 1848 pixels
Displayed:76 times
Date Time:2019:04:13 20:58:09
DateTime Original:2019:04:13 20:58:09
Exposure Bias:0 EV
Exposure Time:1/30 sec
FNumber:f 3.6
Flash:No Flash
Focal length:4.5 mm
ISO:200
Make:Canon
Model:Canon IXUS 170
White Balance:0
URL:https://www.lighting-gallery.net/gallery/displayimage.php?pos=-158528
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Globe Collector
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Jul 26, 2019 at 06:40 AM Author: Globe Collector
Love spectral lamps. Most of mine a Philips, GEC and one Osram.....yet to get any Narva, Tesla or Tungsram ones.

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!

Alex
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Alex_lightning jurgenneandertal
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Jul 27, 2019 at 01:57 PM Author: Alex
Tesla and Tungsram I have never seen. Yes I love them to, hard to get unfortunately...

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Jul 27, 2019 at 04:23 PM Author: Globe Collector
Which elements do these contain?

Zinc and Cadmium ones are the most amazing colours, an amazingly beautiful azure blue and emerald green respectively...they both also have some red lines in the spectrum which appear as a red "halo" around the arc tube due to the chromatic aberration of your corneas.

If photographed the strident colours do not reproduce well....something to do with the camera's "Gamit" RGB triangle on the C.I.E. chart. You have to see them with your own eyes "in the flesh".

Love the vacuum fluorescent Seven Segs in the back, I have a bunch of those somewhere. My uncle used to fix office equipment like calculators and cash registers and would bring such things to me at Christmas time when he visited us.

The IP65 box looks virtually identical to the ones we use here in Australia!

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!

Alex
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Mit dem Osten Siegen!


Alex_lightning jurgenneandertal
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Jul 28, 2019 at 07:07 AM Author: Alex
My favourite is Thalium, sadly very hard to get...

I have a Cadmium in my gallery somewhere lovely too.
7 Segments, I also have calculators, love them too.

These are both mercury.

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Jul 28, 2019 at 07:22 AM Author: Globe Collector
I had to use a Thallium lamp at uni...an Osram one...in physics. It "mysteriously" disappeared a few years later and I have never seen nor heard of it since.

The thallium lamp produces basically only the one 535nm line...so monochromatic...these definitely are the most "transfixing" sources...agreed!

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!

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