Welding creates a serious challenge to visual acuity. The light emitted from gas and arc welding is intense, and contains high levels of both UV and IR light in wavelengths harmful to the human eye. For this reason, welders wear helmets and goggles that utilize filters to reduce brightness, strip away the harmful wavelengths, and protect us physically from welding splatter, which is very nasty. Unfortunately this seriously compromises visibility of the welding task and its surroundings. While the arc itself illuminates the surroundings, the contrast between the arc itself and the area around it is so great that this affords little clarity. When smoke and splatter are included, most welding is done within a very poor visual field. In some cases, it is done almost completely blind.
Most welding glass passes light in a narrow green centered bandwidth, which is why the view though them is green, to the point of being monochromatic. That means most of the light from any task light used that generates white light will be filtered out along with the welding arc emission.
The concept here is to use narrow spectrum green light, in this case 530nm Green, to more efficiently deliver visible light through welding glass filters. This increases intensity in the area of the task. It is very difficult to photograph exactly what one sees through darkened welding glass, and impossible when an arc has been struck.
This fixture prototype delivers a narrow spectrum green light, centered on the emission of the welding filter glass itself. This means that 100% of the light from the task light will come though the glass. For more detail you can download a white paper WIP of may findings and concepts here: Spectrum Welding Light White Paper .
This product and versions of it for other specialty applications, including UV curing, inspection lighting, and many others by special order.
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