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The first and the last This picture shows two extremes in the low-pressure sodium lamp technology: the first commercial low-pressure sodium lamp on the left, i.e., the 1932 Philips Philora DC (running on James' luminaire from about the same period), and the last development on the right, i.e., the 1987 Philips ELS electrodeless SOX. Keywords: Lamps

The first and the last


This picture shows two extremes in the low-pressure sodium lamp technology: the first commercial low-pressure sodium lamp on the left, i.e., the 1932 Philips Philora DC (running on James' luminaire from about the same period), and the last development on the right, i.e., the 1987 Philips ELS electrodeless SOX.
UHP50_and_wine.jpg Philips_S-HPV_20W_28Kr-O229.jpg _DSC2301.jpg UHP50_m.jpg DSC_3291m.jpg
Lamp/Fixture Information
Manufacturer:Philips
Model Reference:Philora DC (left), ELS (right)
Lamp
Lamp Type:Low-pressure sodium
Filament/Radiator Type:Nonthermal discharge in neon and sodium vapor
File information
Filename:_DSC2301.jpg
Album name:Max / Misc lamps and lighting
Keywords:Lamps
Filesize:950 KiB
Date added:19 Jul 2024
Dimensions:1500 x 996 pixels
Displayed:746 times
Software:Adobe Photoshop CS2 Windows
URL:https://trad-lighting.net/gallery/displayimage.php?pid=21
Favourites:Add to Favourites

Comment 1 to 7 of 7
Page: 1

Sammi   [Fri 19 Jul 2024 at 10:48]
A sight never to be seen again
Ria   [Sat 20 Jul 2024 at 00:30]
It would have been wonderful to see these lit in person Cool
AgentHalogen_87   [Sun 21 Jul 2024 at 07:39]
These are incredible specimens! Cool
Max   [Sat 10 Aug 2024 at 12:39]
That's quite an extraordinary combination indeed! I knew you'd like it Smile
Ria   [Sat 10 Aug 2024 at 12:51]
We do Bulb Man
Tuopeek   [Sun 18 Aug 2024 at 18:26]
Fantastic duo. Very impressive to see these two together.
Max   [Wed 21 Aug 2024 at 20:08]
That's quite a rare occurrence indeed, one that was made possible by James who owns the Philora DC luminaire on the left.

Comment 1 to 7 of 7
Page: 1