Bulbs that only emit long IR (>1200nm) or 1000K color temp.

[nlis12]

I am looking for bulbs that would be emitting a spectrum characterized by a color temperature of between 500K and 1000K or any kind of light fixture that only emits long IR wavelengths.

Does such a thing exist?

 

[tech99]

I am looking for bulbs that would be emitting a spectrum characterized by a color temperature of between 500K and 1000K or any kind of light fixture that only emits long IR wavelengths.

Does such a thing exist?

How about reducing the voltage on the bulb until it just glows, maybe using a dimmer? I have done this with 12 volt bulbs in school science when demonstrating the Greenhouse Effect.

 

[sophiecentaur]

I am looking for bulbs that would be emitting a spectrum characterized by a color temperature of between 500K and 1000K or any kind of light fixture that only emits long IR wavelengths.

Does such a thing exist?

You can buy IR lamps for use with night vision and security equipment. LED s seem to be the way to go. Here's an example I found.

 

[nlis12]

How about reducing the voltage on the bulb until it just glows, maybe using a dimmer? I have done this with 12 volt bulbs in school science when demonstrating the Greenhouse Effect.

Thanks!
That makes sense, if there is less voltage, less power, so the color temperature should go down.

 

[sophiecentaur]

Thanks!
That makes sense, if there is less voltage, less power, so the color temperature should go down.

There may be a lot of wasted power in using a filament lamp in that way. LEDs will give you much more IR at the wavelengths you need.

 

[nlis12]

You can buy IR lamps for use with night vision and security equipment. LED s seem to be the way to go. Here's an example I found.

Thanks for the info, I'll look up more stuff related to this!

 

[nlis12]

There may be a lot of wasted power in using a filament lamp in that way. LEDs will give you much more IR at the wavelengths you need.

Yea I thought about that, but LEDs don't give me the radiant power I need. (unless I had >100,000 of them)

 

[sophiecentaur]

LEDs don't give me the radiant power I need. (unless I had >100,000 of them)

You can get 14W IR LED lamps. What was your application for 1.4MW of IR? Also, where would you get appropriate filament lamps?

 

[russ_watters]

I think for this you are talking in the range of an infrared heater. I remember once using an infrared heater to illuminate a room for a camcorder with an ir mode.

 

[dlgoff]

I think for this you are talking in the range of an infrared heater.

Good idea. They also can provide lots of watts.

 

[sophiecentaur]

What sort of spectrum do you require? If it's got to be Black Body then a hot black body (filament) will do nicely. If you want no visible light from your source then you may need to use a filter - which is what night vision sources tend to do. But you haven't said what your application is.