NernstLamp Anew form of incandescent light for homes and medical uses History (1897 1980s) Introduction Statistics HowThey Work Inventorsand Developments T henernst lamp was invented as an improvement to the existing incandescentlamp. It lasted longer and had improved efficiency. The lamp becamea serious competitor to standard bamboo and cellulosefilament incandescent bulbs at the time. The nernst lamp was createdby a physicist not an untrained tinker. This was actually an importanttrend of the 1890s. Simple trial and error methods used by ThomasEdison would not be able to create such a sophisticated device.The success of engineer/inventors equipped with the latest in scientificknowledge acquired in Germany and Switzerland sent a powerful messageto the rest of the world that we are in a new age of technology. Becauseof market threat from the nernst lamps(Sold by Nernst in Europe andWestinghouse in US) and tantalum filament lamps (owned by Siemens Halske)， Berlin， FTP， Wuerzburg. He founds the Instituteof Physical Chemistry and Electrochemistry at Göttingenin 1897. He worked on many other technologies and with a heavybackground in science he helped steer engineering into a newage. He was a outspoken opponent of Nazism and Adolf Hitler，Germanyin 1897. This lamp emits a natural light， close to the daylightspectrum， New York。
Germanyin 1897. This lamp emits a natural light， so it did not need to be enclosedin a bulb. Ourvideoabout the nernst lamp is the best way to understand howit works. Firstthe heater tubes would rise in temperature to the point of asoft red glow. This would prepare the glower. When the glowerreached a certain temperature the resistivity dropped to thepoint where current would begin to flow through it. At thispoint a shifter or switch would stop providing power to theheater tubes and all current would flow through the glower (seethe video of the schematic).The glower created a nice pure white light similar to a halogenlamp today. Longer Life: Thepoint of the bulb in regular incandescentlamps is to create a vacuum around the filament to preventthe filament from oxidizing which lengthens the life of thefilament. In a nernst lamp the glower had a longer life thanthe incandescents of the time. The glower could be replaced， General Electric founded the GE Research Lab andhired people of every nationality to work together. Corporations knewthey had to trust and invest in the new breed of engineer to keepthem afloat. Statistics *Lumensper watt: 6-9 *Lamp life: 450 1200 hours *CRI100 *Color Temperature ~3000 Commonuses: indoor lighting，boxes of replacement glowers were sold. This was much more practicalthan replacing the whole lamp head unit (see the illustrationleft). Theballast is made of pure iron wire in a glass bulb filled withhydrogen gas (to prevent rust). It is a simple resistor. Schematicof how the lamp works: (embedded Youtube video) Type A NernstLamp: coiled ceramic glower Type C lamp.Westinghouse ended up buying the license to sell the lamp inNorth America. This illustration above shows a large nernstlamp with 6 glowers. This would allow the lamp to be placedon high ceiling interior locations where it could replace thealready popular carbon arc lamp. This meant that the nernstlamp was competition for older small and large area lightingsystems. 2. Inventors and Developments WaltherNernst TheNernst Lamp was invented by WaltherNernst in Göttingen， USA ，boxes of replacement glowers were sold. This was much more practicalthan replacing the whole lamp head unit (see the illustrationleft). Theballast is made of pure iron wire in a glass bulb filled withhydrogen gas (to prevent rust). It is a simple resistor. Type A NernstLamp: coiled ceramic glower Type C lamp.Westinghouse ended up buying the license to sell the lamp inNorth America. This illustration above shows a large nernstlamp with 6 glowers. This would allow the lamp to be placedon high ceiling interior locations where it could replace thealready popular carbon arc lamp. This meant that the nernstlamp was competition for older small and large area lightingsystems. WaltherNernst TheNernst Lamp was invented by WaltherNernst in Göttingen， so it did not need to be enclosedin a bulb. Ourvideoabout the nernst lamp is the best way to understand howit works. Firstthe heater tubes would rise in temperature to the point of asoft red glow. This would prepare the glower. When the glowerreached a certain temperature the resistivity dropped to thepoint where current would begin to flow through it. At thispoint a shifter or switch would stop providing power to theheater tubes and all current would flow through the glower (seethe video of the schematic).The glower created a nice pure white light similar to a halogenlamp today. Longer Life: Thepoint of the bulb in regular incandescentlamps is to create a vacuum around the filament to preventthe filament from oxidizing which lengthens the life of thefilament. In a nernst lamp the glower had a longer life thanthe incandescents of the time. The glower could be replaced，and as a result lost his job as a scientist and died poor in1941. *Nobel Laureate IrvingLangmuir studied under Walther Nernst in Göttingenand helped him develop the Nernst lamp. Langmuir went on towork for GE and greatly improve the incandescent lamp. (seethe Incandescent Lamp section above) ContinuedUse Today: The Nernst Glower was important for use in the medicalfield in infrared spectroscopy until the 1980s. Previous:The Incandescent Lamp 1802 Next: NeonLamps 1898 Arc Incandescent Nernst Neon MercuryVapor Sodium Lamp Fluorescent Halogen EL LED MH Induction Contact | Donate | Videos | Media Licensing | Facebook © 2026 Edison Tech Center | Schenectady， unlike incandescent bulbs. Nernstwas born Briesen in West Prussia (close to the same region asCharles Steinmetz)and studied in Zurich，and as a result lost his job as a scientist and died poor in1941. *Nobel Laureate IrvingLangmuir studied under Walther Nernst in Göttingenand helped him develop the Nernst lamp. Langmuir went on towork for GE and greatly improve the incandescent lamp. (seethe Incandescent Lamp section above) ContinuedUse Today: The Nernst Glower was important for use in the medicalfield in infrared spectroscopy until the 1980s. Previous:The Incandescent Lamp 1802 Next: NeonLamps 1898 Arc Incandescent Nernst Neon MercuryVapor Sodium Lamp Fluorescent Halogen EL LED MH Induction TheElectric Light Photos: Edison Tech Center Westinghouse Photo/Videouse: Commercial entities must pay for use of photos/graphics/videos in theirweb pages/videos/publications No one commercial or public is allow to alter Edison Tech Center photos/graphics/videos. Educational Use: Students and teachers may use photos and videosfor school. Graphics and photos must retain the Edison Tech Center watermarkor captions and remain unmanipulated except for sizing. Permissions Videos: We do not email，Germanyin 1897. This lamp emits a natural light。
specific medical uses where infraredlight is needed Thislight is now obsolete. Nernst lamp heyday was 1900 1913. Theyare no longer produced. 1.How They Work 2.Inventors and Developments NernstLamp uses a small ceramic rod that was heated to incandescence.The lamp is also called a incandescent glower. Ceramicdoes not oxidize like metal， or send videos/graphics to anyoneexcept in DVD form. Payment is needed for this service. See our donatepage for pricing， specific medical uses where infraredlight is needed Thislight is now obsolete. Nernst lamp heyday was 1900 1913. Theyare no longer produced. 1.How They Work 2.Inventors and Developments 1.How they work NernstLamp uses a small ceramic rod that was heated to incandescence.The lamp is also called a incandescent glower. Ceramicdoes not oxidize like metal， Wuerzburg. He founds the Instituteof Physical Chemistry and Electrochemistry at Göttingenin 1897. He worked on many other technologies and with a heavybackground in science he helped steer engineering into a newage. He was a outspoken opponent of Nazism and Adolf Hitler， Berlin， unlike incandescent bulbs. Nernstwas born Briesen in West Prussia (close to the same region asCharles Steinmetz)and studied in Zurich， specific medical uses where infraredlight is needed Thislight is now obsolete. Nernst lamp heyday was 1900 1913. Theyare no longer produced. 1.How They Work 2.Inventors and Developments NernstLamp uses a small ceramic rod that was heated to incandescence.The lamp is also called a incandescent glower. Ceramicdoes not oxidize like metal。
boxes of replacement glowers were sold. This was much more practicalthan replacing the whole lamp head unit (see the illustrationleft). Theballast is made of pure iron wire in a glass bulb filled withhydrogen gas (to prevent rust). It is a simple resistor. Type A NernstLamp: coiled ceramic glower Type C lamp.Westinghouse ended up buying the license to sell the lamp inNorth America. This illustration above shows a large nernstlamp with 6 glowers. This would allow the lamp to be placedon high ceiling interior locations where it could replace thealready popular carbon arc lamp. This meant that the nernstlamp was competition for older small and large area lightingsystems. WaltherNernst TheNernst Lamp was invented by WaltherNernst in Göttingen， close to the daylightspectrum， close to the daylightspectrum， Wuerzburg. He founds the Instituteof Physical Chemistry and Electrochemistry at Göttingenin 1897. He worked on many other technologies and with a heavybackground in science he helped steer engineering into a newage. He was a outspoken opponent of Nazism and Adolf Hitler，。
unlike incandescent bulbs. Nernstwas born Briesen in West Prussia (close to the same region asCharles Steinmetz)and studied in Zurich， so it did not need to be enclosedin a bulb. Ourvideoabout the nernst lamp is the best way to understand howit works. Firstthe heater tubes would rise in temperature to the point of asoft red glow. This would prepare the glower. When the glowerreached a certain temperature the resistivity dropped to thepoint where current would begin to flow through it. At thispoint a shifter or switch would stop providing power to theheater tubes and all current would flow through the glower (seethe video of the schematic).The glower created a nice pure white light similar to a halogenlamp today. Longer Life: Thepoint of the bulb in regular incandescentlamps is to create a vacuum around the filament to preventthe filament from oxidizing which lengthens the life of thefilament. In a nernst lamp the glower had a longer life thanthe incandescents of the time. The glower could be replaced， Berlin。
and our cataloguefor a listing of videos on DVD. Professional video production companies may get videos in data form withsigned license agreements and payment at commercial rates. Introduction Statistics HowThey Work Inventorsand Developments Statistics *Lumensper watt: 6-9 *Lamp life: 450 1200 hours *CRI100 *Color Temperature ~3000 Commonuses: indoor lighting，and as a result lost his job as a scientist and died poor in1941. *Nobel Laureate IrvingLangmuir studied under Walther Nernst in Göttingenand helped him develop the Nernst lamp. Langmuir went on towork for GE and greatly improve the incandescent lamp. (seethe Incandescent Lamp section above) ContinuedUse Today: The Nernst Glower was important for use in the medicalfield in infrared spectroscopy until the 1980s. Previous:The Incandescent Lamp 1802 Next: NeonLamps 1898 Arc Incandescent Nernst Neon MercuryVapor Sodium Lamp Fluorescent Halogen EL LED MH Induction Introduction Statistics HowThey Work Inventorsand Developments Statistics *Lumensper watt: 6-9 *Lamp life: 450 1200 hours *CRI100 *Color Temperature ~3000 Commonuses: indoor lighting。