Pifco Halogen Heater : Flameless Fireplace Heaters : 400 000 Btu Pool Heater.
Halogen spectrum -- whoops!
This is the last spectrum picture for the moment... I broke my spectrometer. This is my 750 watt halogent light. As you can see, the spectrum is very smooth -- no spectral lines like the LCD or the CFL bulbs. That's because it emits light differently. Atoms and molecules have electrons in certain orbits -- when those electrons move from a higher energy state to a lower one, they emit a photon at a very specific wavelength. This causes spectral lines. That's how flourescent bulbs and LCDs work. There's another type of light emitted called black body radiation, and this light is caused by the heat of the object. Incandescent and halogen bulbs have a filament that gets extremely hot and gives off light in a smooth spectrum. So does the sun, and the heating elements in electric ranges and stoves. Our bodies give off black body radiation too, but the wavelength is too long for us to see. It's deep in the infrared. So a 750 watt halogen bulb gives off a LOT of heat. I had my spectrograph too close to it, and the razor blades I used to make a slit soaked up all that heat. I used hot glue to keep the razor blades in place. Hot glue melts at a fairly low temperature, so my razor blades fell off :-(Halogen Lamp
R7s J78 halogen tube linear (78mm) 150w. The filament has become so distorted it is starting to melt it's way through the glass.
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